SECTION 2. QUALIFICATIONS FOR ADVANCEMENT IN RATING

D-5201. ALPHABETIC LIST OF RATINGS AND RATING DESIGNATORS WITH APPROPRIATE ARTICLE NUMBERS.

Ratings and Rating Designators

Article No.

Aerographer's Mates

5208.10

Airship Riggers

5208.08

Aviation Electrician's Mates

5208.03

Aviation Machinist's Mates

5208.02

Aviation Machinist's Mates C—(Aviation Carburetor Mechanics)

5208.021

Aviation Machinist's Mates F—(Aviation Flight Engineers)

5208.022

Aviation Machinist's Mates H—(Aviation Hydraulic Mechanics)

5208.023

Aviation Machinist's Mates I—(Aviation Instrument Mechanics)

5208.024

Aviation Machinist's Mates P—(Aviation Propeller Mechanics)

5208.025

Aviation Metalsmiths

5208.06

Aviation Ordnancemen

5208.07

Aviation Ordnancemen B—(Aviation Bombsight Mechanics)

5208.071

Aviation Ordnancemen T—(Aviation Turret Mechanics)

5208.072

Aviation Pilots

5208.01

Aviation Pilots (Airship)

5208.011

Aviation Radiomen

5208.04

Aviation Radio Technicians

5208.05

Bakers

5210.02

Boatswain's Mates

5205.021

Boatswain's Mates A—(Masters-at-Arms)

5205.022

Boilermakers

5207.06

Buglemasters

5209.071

Buglers

5209.07

Carpenter's Mates

5206.05

Chief Commissary Stewards

5210.03

Cooks

5211.03

Coxswains

5205.02

Electrician's Mates

5207.04

Fire Controlmen

5205.08

Fire Controlmen O—(Operators)

5205.081

Fire Controlmen S—(Submarine)

5205.082

Firemen

5207.01

Gunner's Mates

5205.03

Hospital Apprentices

5209.05

Machinist's Mates

5207.02

Machinist's Mates G—(Industrial Gas Generating Mechanics)

5207.021

Machinist's Mates R—(Refrigeration Mechanics)

5207.022

Machinist's Mates S—(Shop Machinists)

5207.023

Metalsmiths

5206.07

Minemen

5205.04

Molders

5206.08

Motor Machinist's Mates

5207.03

Musicians

5209.08

Painters

5206.11

Painters V—(Aircraft Painters)

5208.13

Parachute Riggers

5208.09

Patternmakers

5206.09

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Ratings and Rating Designators

Article No.

Pharmacist's Mates

5209.06

Pharmacist's Mates (DP)—(Dental Prosthetic Technicians)

5209.061

Photographer's Mates

5208.11

Printers

5209.03

Printers L—(Lithographers)

5209.031

Printers M—(Offset Process)

5209.032

Quartermasters

5205.06

Radarmen

5206.03

Radiomen

5206.01

Radio Technicians

5206.02

Seamen

5205.01

Shipfitters

5206.06

Ship's Cooks

5210.01

Ship's Cooks B—(Butchers)

5210.011

Ship's Service Men B—(Barbers)

5209.041

Ship's Service Men C—(Cobblers)

5209.042

Ship's Service Men L—(Laundrymen)

5209.043

Ship's Service Men T—(Tailors)

5209.044

Signalmen

5205.07

Sonarmen

5206.04

Sonarmen H—(Harbor Defense)

5206.041

Special Artificers D—(Special Devices)

5206.101

Special Artificers I—(Instruments)

5206.102

Special Artificers I (WR)—(Watch Repairmen)

5206.1021

Special Artificers I (TR)—(Typewriter and Office Equipment Repairmen)

5206.1022

Special Artificers O—(Optical)

5206.103

Specialists

5212

Specialists (A)—(Physical Training Instructors)

5212.01

Specialists (C)—(Classification Interviewers)

5212.02

Specialists (F)—(Fire Fighters)

5212.03

Specialists (G)—(Aviation Free Gunnery Instructors)

5212.04

Specialists (I)—(Punched Card Accounting Machine Operators)

5212.05

Specialists (M)—(Mail Clerks)

5212.06

Specialists (O)—(Inspectors of Naval Matériel)

5212.07

Specialists (P)—(Photographic Specialists)

5212.08

Specialists (P) (PG)—(Photogramraetry)

5212.081

Specialists (P) (LB)—(Laboratory)

5212.082

Specialists (P) (MP)—(Motion Picture Production)

5212.083

Specialists (P) (VM)—(V-Mail)

5212.084

Specialists (Q)—(Communication Specialists)

5212.09

Specialists (Q) (CR)—(Cryptographers)

5212.091

Specialists (Q) (IN)—(Radio Intelligence)

5212.092

Specialists (Q) (TE)—(Technicians)

5212.093

Specialists (R)—(Recruiters)

5212.10

Specialists (S)—(Shore Patrol and Security)

5212.11

Specialists (S)—(Personnel Supervisors)

5212.111

Specialists (T)—(Teachers)

5212.12

Specialists (T) (LT)—(Link Trainer Instructors)

5212.121

Specialists (V)—(Transport Airmen)

5212.13

Specialists (W)—(Chaplain's Assistants)

5212.14

Specialists (X)—(Specialists not elsewhere classified)

5212.15

Specialists (Y)—(Control Tower Operators)

5212.16

Stewards

5211.02

Steward's Mates

5211.01

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Ratings and Rating Designators

Article No.

Storekeepers

5209.02

Storekeepers D—(Disbursing Storekeepers)

5209.021

Storekeepers T—(Technical Storekeepers)

5209.022

Storekeepers V—(Aviation Storekeepers)

5208.14

Telegraphers

5206.12

Torpedoman's Mates

5205.05

Torpedoman's Mates E—-(Electrical)

5205.051

Torpedoman's Mates V—(Aviation)

5208.12

Turret Captains

5205.031

Water Tenders

5207.05

Yeomen

5209.01

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D-5202. FOREWORD.

A petty officer is a man-of-war's-man who is first, a leader, and second, a specialist. Before being advanced to a petty officer rating, a man must possess the fundamental knowledge required of all men in the Navy (See D-5203), must be found qualified in the General Qualifications required of all petty officers, and must meet the Technical Qualifications for a particular rating.

Most of the General Qualifications, set forth in D-5204, are best determined by observation of the candidate in situations that require a demonstration of his knowledge, skills, and abilities. Such observation is preferred to formal examination and should be used when circumstances permit. The scope of the subject matter to be covered under D-5203 and D-5204, respectively, is outlined in the General Training Course for Non-Rated Men, the General Training Courses for Petty Officers, and related training materials. These courses and materials are revised from time to time.

The Technical Qualifications, set forth in subsequent articles of this section, are prescribed as a standard for each grade in the various ratings. These qualifications are indicated as PRACTICAL FACTORS, EXAMINATION SUBJECTS, and SCHOOL QUALIFICATIONS, and must be met by each person prior to advancement to the grade concerned. (See D-5104 ff and current circular letters concerning advancement in rating.) The scope of the subject matter to be covered is outlined in the training course for the particular rating and in the technical pamphlets and materials issued by the various bureaus and offices.

A candidate for promotion to a higher grade in any rating is also responsible for the technical qualifications prescribed for lower grades of that rating. As a reminder of this requirement, subparagraphs in the qualifications for each rating grade refer back to the qualifications for the lower grade of the rating. In addition to having qualified in the practical factors for the higher grade, the candidate must have demonstrated more thoroughness, greater expertness, and a higher degree of skill in the practical factors for the lower grade. In addition to qualifying in the examination subjects for the higher grade, he must also show a more detailed and thorough knowledge in examination subjects carefully selected from the qualifications for the lower grade.

D-5203. FUNDAMENTAL KNOWLEDGE REQUIRED OF ALL MEN IN THE NAVY.

All men in the Navy shall be conversant with general naval subjects contained in the General Training Course for Non-Rated Men. Entries in service records that men concerned have completed a course and passed an examination in the General Training Course for Non-Rated Men may be accepted by the examining board in lieu of examination in these subjects when prescribed.

Note.—These general naval subjects were formerly referred to as "A to N."

D-5204. GENERAL QUALIFICATIONS REQUIRED OF ALL PETTY OFFICERS.

(1) PRIMARY REQUIREMENTS.

(a) LEADERSHIP.—Demonstrate ability to take charge of a group of men. Demonstrate ability to train subordinates.

(b) AUTHORITY AND RESPONSIBILITY.—Demonstrate a knowledge of the duties common to all petty officers ashore and afloat in regard to the exercise of authority and the responsibilities in connection with maintaining order and safeguarding government property.

(c) SECURITY.—Demonstrate a knowledge of importance of safeguarding classified information.

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(d) DRILL.—Demonstrate ability to take charge of a group, and conduct infantry drill and physical exercises.

(e) DAMAGE CONTROL.—Demonstrate a knowledge of watertight integrity and material conditions.

(f) FIRST AID.—Demonstrate an elementary knowledge of first aid.

(g) ARITHMETIC.—Demonstrate a fundamental knowledge of elementary arithmetic including addition, subtraction, multiplication, division, simple and decimal fractions, and mensuration.

(2) ADDITIONAL REQUIREMENTS FOR SEAMAN BRANCH.

(a) SIGNALS.—

Semaphore.—Demonstrate ability to send and receive.

Flashing light.—Demonstrate ability to send and receive.

Flags.—Identify all alphabet flags, numeral pennants, and repeaters.

(b) LOOKOUTS.—Demonstrate ability to train and supervise lookouts.

(c) RECOGNITION.—Demonstrate ability to recognize with speed and accuracy all types of ships and aircraft, friend or foe, that might operate in the area in which stationed.

(d) SMALL ARMS.—Demonstrate ability to use rifles, pistols, automatic rifles, and machine guns. Know the safety precautions connected with their use.

D-5205. SEAMAN BRANCH.

D-5205.01. Seamen.

(1) SEAMAN, SECOND CLASS.

A seaman, second class, within a reasonable time after arrival on board ship should be expected to know the names of the captain, executive officer, heads of departments, deck division officers, and other principal officers on his own ship; the duties that he is expected to perform at general quarters and emergency drills, and be able to recognize the signals for these drills; the duties of a life buoy watch, and the location of all life buoys; the duties of a messenger, side boy, anchor watch, telephone talker and lookout, including recognition of all types of ships and aircraft, friend or foe, that might operate in the area in which stationed; the location of boats, life rafts, guns, bridges, officers' quarters, chief petty officers' quarters, engine rooms, fire rooms, and other principal compartments; a detailed knowledge of his own part of the ship including the location of all fire plugs and other fire apparatus and damage control equipment, and a working knowledge of their use.

(2) SEAMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) MARLINSPIKE SEAMANSHIP.—Demonstrate ability to tie the more common knots and hitches in general use aboard ship and be able to describe the uses of each. Be able to put a whipping on a rope, put a stopper on a line, and put a strap on a line. Demonstrate proper methods of mousing a hook and making an eye splice and a short splice with manila line.

(b) DECK SEAMANSHIP.—Demonstrate ability to heave the lead, heave a line, and coil down, fake down, and flemish down a line. Be able to identify the various blocks and tackles and the different kinds and uses of rope (wire and manila) used on board ship. Demonstrate a knowledge of methods of measuring, handling, and stowage of rope. Demonstrate a knowledge of the meaning of common sea terms and expressions,

(c) GUNNERY.—Demonstrate ability to perform the duties of own battle station.

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(d) WATCH STANDING.—Demonstrate competence in standing watch on the following stations: steersman (not lee helmsman), messenger, side boy, telephone talker, anchor watch, speed indicator, lookout (including recognition of all types of ships and aircraft, friend or foe, that might operate in the area in which stationed), and on any other station to which a seaman may be regularly assigned.

(B) EXAMINATION SUBJECTS.

(a) BOATS.—Classes and types of boats and their nomenclature. Working knowledge of the duties of a boat crew, the boat gear carried, and elementary boat etiquette. Orders and expressions used in hoisting and lowering. Securing a lifeboat for sea.

(b) SEAMANSHIP.—Working knowledge of the steps necessary in preparing a ship for port and for getting under way. Names of lines used in mooring a ship alongside a dock. Elementary knowledge of the Rules of the Road and the United States system of buoyage. Standard steering and engine orders. Marking of a lead line. Standard compass card and methods of taking relative bearings.

(c) GROUND TACKLE.—Working knowledge of the uses of anchors, shackles, swivels, and stoppers, and how the anchor chain is made up and marked. General knowledge of methods of heaving in, letting go, and securing the anchor.

(d) GUNNERY.—Duties of a gun's crew and common gunnery safety precautions. General knowledge of the parts and types of naval guns and methods of stowing and handling ammunition aboard ship. Detailed knowledge of the duties of own battle station.

D-5205.02. Coxswains.

(1) COXSWAIN.

(A) PRACTICAL FACTORS.

(a) D-5204. (1) and (2).

(b) BOATS.—Demonstrate ability as coxswain of a boat.

(c) MARLINSPIKE SEAMANSHIP.—Demonstrate ability to tie all of the knots used aboard ship and to use them properly. Demonstrate ability to make a boat fender. Demonstrate a knowledge of making cargo nets or life nets.

(d) CANVAS.—Demonstrate ability to use palm and needle.

(e) DECK MACHINERY.—Demonstrate ability to operate a deck winch.

(f) D-5205.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) BOATS.—Duties of a boat coxswain and safety precautions to be observed in power boats. Working knowledge of the Rules of the Road, boat etiquette, and boat hails.

(b) GENERAL SEAMANSHIP.—Know the use of hawsers, fenders, and boat-lines; overhaul of blocks and gear, and care of standing rigging.

(c) SIGNALS.—Know signals to indicate distress, boat recall, and storm warning. Lifeboat directive signals, and other special signals. Use of special boat flags and pennants.

(d) GUNNERY.—Thorough knowledge of, the duties of a gun captain.

(e) AVIATION SEAMANSHIP.—Handling of boats in the vicinity of planes and going alongside a plane. Proper methods of towing a plane, and fueling a plane from a boat. Rescue of crew of a burning plane.

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(f) COMPASS AND CHART, BUOY SYSTEM.—Set up and read a boat compass. Working knowledge of the U. S. Buoyage System and harbor charts.

(g) D-5205.01 (2) (B).

(h) D-5203.

D-5205.021. Boatswain's Mates.

(1) BOATSWAIN'S MATE, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) HOISTING AND LOWERING BOATS, PLANES, AND WEIGHTS.— Demonstrate ability to hoist boats, planes, and heavy weights in own ship.

(b) SEAMANSHIP.—Demonstrate ability to splice a wire (eye splice and long splice) and fit a wire in a socket.

(c) GUNNERY.—Demonstrate ability to station a gun crew and be able to instruct and train each member in his duties. Demonstrate ability to prepare a gun for firing.

(d) BOATSWAIN'S CALL.—Demonstrate ability to pipe all shipboard calls.

(e) CANVAS.—Demonstrate ability to make a canvas article required on board ship.

(f) D-5205.02 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) BOATS.—Equipping and provisioning of boats and rafts. Handling boats in surf.

(b) GROUND TACKLE.—Know the methods of overhauling anchors, chain

cable, and shackles.

(c) GENERAL SEAMANSHIP.—Procedures for preparing to enter port, going alongside, and getting underway.

(d) GUNNERY.—General knowledge of the gun casualties which are likely to occur in battle, and the procedures for handling. Working knowledge of safety precautions in handling ammunition and explosives.

(e) EMERGENCY DRILL EQUIPMENT.—Detailed knowledge of the location of all equipment used and the limitations of each piece of equipment.

(f) WATCH STANDING.—Duties of the boatswain's mate of the watch at sea and in port.

(g) D-5205.02 (1) (B).

(2) BOATSWAIN'S MATE, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) PARAVANES.—Demonstrate ability to rig paravanes.

(b) PILOTING.—Demonstrate ability to take and plot bearings.

(c) SEAMANSHIP.—Demonstrate ability to rig for heavy hoisting.

(d) D-5205.021 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) HANDLING HEAVY WEIGHTS.—Practical rules to follow when working with manila and wire rope in the handling of heavy weights and the proper use of rigging and tackles. Thumb rules for finding the breaking strain of manila rope.

(b) SEAMANSHIP.—Rigging ship for provisioning. Use of breeches buoy. Working knowledge of methods of carrying out an anchor.

(c) ADMINISTRATION.—Organization of a division.

(d) GUNNERY.—Thorough knowledge of the common terms used in fire control and the control of fire of a gun in local control. Duties of a petty officer in charge of a target repair party.

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(e) O.O.D. DUTIES.—Duties of the O.O.D. under way and at anchor.

(f) D-5205.021 (1) (B).

(3) CHIEF BOATSWAIN'S MATE.

(A) PRACTICAL FACTORS.

(a) PILOTING.—Demonstrate ability to determine position by bearing plots, lay off courses and distances, and use navigational equipment commonly employed in piloting.

(b) SEAMANSHIP.—Demonstrate ability to rig ship for towing and being towed, and for fueling under way.

(c) ADMINISTRATION.—Prepare a standard work request.

(d) D-5205.021 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) SHIPHANDLING (AS APPLIED TO SMALL CRAFT.).—Proper methods of coming to anchor, mooring and unmooring alongside, and getting under way. Towing operations. Maneuvering in a restricted space, effects of engines, rudder, lines, wind, and current.

(b) PILOTING.—Understand the use of danger bearings and soundings. Be familiar with the magnetic compass and know how it is compensated. Have a general knowledge of compass error and how it is applied.

(c) WEATHER.—Knowledge of how and when to obtain information concerning the weather. Functions of the barometer and wet-bulb and dry-bulb thermometers in weather predictions. General knowledge of the laws of storms.

(d) ADMINISTRATION.—Duties of the O.O.D. under way and at anchor. Thorough knowledge of the duties of a division officer as outlined in Chapter 30, U. S. Navy Regulations, and the records to be kept and reports to be made. Familiarity with the contents of relevant naval publications and sources of information.

(e) D-5205.021 (2) (B).

D-5205.022. Boatswain's Mates A—(Masters-at-Arms).

No qualifications published.

D-5205.03. Gunner's Mates.

(1) GUNNER'S MATE, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) TOOLS AND MEASURING INSTRUMENTS—Demonstrate ability to use properly all hand tools including special tools and precision measuring instruments used in the maintenance of the battery to which attached.

(c) GUNS.—Demonstrate ability to disassemble and assemble the breech and firing mechanisms of the gun on which stationed or demonstrate ability to disassemble and assemble the machine gun on which stationed. Demonstrate ability to carry out routine maintenance procedure on battery to which attached.

(d) SMALL ARMS.—Demonstrate ability to disassemble and assemble a rifle, a pistol, and a light machine gun.

(e) GUN CAPTAIN.—Demonstrate ability to qualify as gun captain, second class, at a main, secondary, or anti-aircraft battery gun of a caliber of 1-inch or greater.

(f) MAGAZINE CREWS.—Demonstrate ability to station magazine and handling room crews on battery to which attached, to maintain flow of ammunition.

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(g) HOISTS.—Demonstrate ability to operate ammunition hoists on own battery.

(h) LUBRICATION.—Demonstrate ability to lubricate properly the guns or other equipment to which assigned in accordance with the lubrication charts.

(i) BLUEPRINTS.—Demonstrate ability to read simple blueprints and diagrams relating to battery to which attached.

(B) EXAMINATION SUBJECTS.

(a) GUNS.—Working knowledge of the steps taken in preparing a gun for firing. Knowledge of routine maintenance of the gun or equipment on which stationed, including lubrication and use of preservative coatings. Knowledge of after-firing upkeep routine and maintenance of battery log. General knowledge of the firing and illumination circuits on own battery. Thorough knowledge of the machine guns aboard own ship.

(b) BORESIGHTING.—General object of boresighting and precautions to be observed in the handling of telescopes and sights.

(c) ELECTRICITY.—Knowledge of elementary electricity, including basic units of current and their simple manipulation by means of Ohm's law. Care of electrical equipment used in connection with battery on which stationed.

(d) SAFETY PRECAUTIONS.—Thorough knowledge of the safety precautions and casualty procedures in the battery on which stationed.

(e) AMMUNITION.—Marking and stowage of ammunition for own battery. Marking and stowage of pryotechnics. Flooding, lighting, and ventilation of magazine on battery to which attached. Visual examination of smokeless powder samples.

(f) HYDRAULICS.—Elementary hydraulics, including basic units of oil pressure, the operation of constant delivery pumps and variable speed gears.

(g) D-5203.

(2) GUNNER'S MATE, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) GUNS.—Demonstrate ability to prepare and maintain a gun for firing. Demonstrate ability to boresight a gun, to test firing circuits and firing locks, and to carry out ships force overhaul and upkeep on gun to which assigned. Demonstrate ability to assemble and disassemble machine guns on board own ship.

(b) HYDRAULICS.—Demonstrate ability to fill, drain, and perform simple adjustments on hydraulic gear, including hoists.

(c) SPRINKLING SYSTEM.—Demonstrate ability to operate the flooding and sprinkling systems on own ship.

(d) ARMORER.—Demonstrate ability to perform the duties of an armorer.

(e) D-5205.03 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) GUNS.—Working knowledge of the mechanisms of recoil and counterrecoil gas ejection, and ammunition supply. Preparation and testing of recoil liquids in accordance with current specifications. Precautions to be observed in alignment of gun sight telescope and gun. Purpose and procedure of roller path inspection on battery to which attached.

(b) FIRE CONTROL.—Meaning of the basic fire control terms. Methods of fire control. Detailed knowledge of action of mechanical and electrical firing mechanisms, firing cut-out cams, and firing circuits of own battery. Inputs and outputs of indicator regulator of own gun, if so equipped.

(c) METALS.—Characteristics of metals used in breech blocks, firing cut-out cams, gears, and bearing surfaces on own battery. Care required of these metals for proper maintenance of battery.

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(d) AMMUNITION.—Types of projectiles and the use of each type. General knowledge of the construction of projectiles. Types of fuzes and their operation. Principle of the tracer projectile. Care and the handling of cartridge cases, powder tanks, and projectiles. Preparation of impulse charges. Safety precautions.

(e) D-5205.03 (1) (B).

(3) GUNNER'S MATE, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) GUN BATTERY.—Demonstrate ability to direct and supervise gun battery maintenance in readiness for battle. Demonstrate the ability to keep a battery log and prepare a machinery history.

(b) AMMUNITION.—Demonstrate ability to examine and make shipboard tests of smokeless powder.

(c) HYDRAULICS.—Demonstrate ability to fit and repair hydraulic piping and perform all adjustments on hydraulic units of own battery. Demonstrate ability to read detailed hydraulic schematic diagrams.

(d) FIRE CONTROL.—Demonstrate ability to take charge of a gun as a group control officer and simulate firing with independent control, indicating knowledge of the spotting doctrine.

(e) D-5205.03 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) FIRE CONTROL.—Show by diagram the fire control system of a battery in own ship.

(b) EQUIPAGE.—Procedures for obtaining spare parts for guns, mounts, and apparatus pertaining thereto. Knowledge of allowance lists.

(c) HYDRAULICS.—Complete knowledge of hydraulic casualties and the necessary remedial action.

(d) GUNS.—Description of, and reasons for, star-gaging and boresighting.

(e) ORDNANCE.—General knowledge of bombs, mines, demolition outfits, pyrotechnics, depth charges, torpedoes, and smokescreen generators. Types of explosives and stowage, handling, and pertinent safety precautions, including special upkeep and readiness procedures under extreme climatic conditions. (On large ships, examinations in underwater ordnance should be given only when adequate facilities for such instruction are available.)

(f) SAFETY PRECAUTIONS.—Thorough and detailed knowledge of pertinent safety precautions covered in U. S. Navy Regulations, Chapter 24, Section 2.

(g) D-5205.03 (2) (B).

(4) CHIEF GUNNER'S MATE.

(A) PRACTICAL FACTORS.

(a) SUPERVISION AND TRAINING.—Demonstrate ability to function as a junior gunnery division officer. Demonstrate proficiency in the selection and training of gun crews and ordnance repair parties.

(b) HYDRAULIC EQUIPMENT.—Demonstrate ability to adjust and maintain all ordnance hydraulic equipment in own ship.

(c) AIR SYSTEM.—Trace the high and low pressure air systems in use in Gunnery Department on board own ship.

(d) D-5205.03 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) SOURCES OF INFORMATION.—Current sources of information regarding guns, mounts, magazines, and ordnance equipment.

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(b) DEMOLITION.—Demolition, including types of charge, and the methods

used for demolition at sea, and on shore.

(c) ELECTRIC-HYDRAULIC UNITS.—Detailed knowledge of the safety precautions, trouble analysis, disassembly, and assembly of electric hydraulic units on own ship.

(d) REPORTS AND FORMS.—Reports to be made by the Gunnery Department and familiarity with the forms used.

(e) D-5205.03 (3) (B).

D-5205.031. Turret Captains.

(1) TURRET CAPTAIN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) TURRET MAINTENANCE.—Demonstrate ability to direct and supervise maintenance of a turret and all its equipment in readiness for action, including the preparation of a turret log and machinery history.

(b) TURRET CREWS.—Demonstrate ability to station, train, and drill a turret crew under all conditions of action.

(c) FIRE CONTROL—Demonstrate ability to take charge of a turret under all conditions of control, indicating knowledge of spotting doctrine.

(d) HYDRAULICS.—Demonstrate ability to fit and repair hydraulic piping and perform all adjustments on hydraulic units of own turret. Demonstrate ability to read detailed hydraulic schematic diagrams.

(e) GUN CAPTAIN.—Demonstrate ability to qualify as gun captain, second class, on an antiaircraft or machine gun mount.

(f) AMMUNITION.—Demonstrate ability to make examination and shipboard tests of smokeless powder.

(g) D-5205.03 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) FIRE CONTROL.—Show by diagram the fire control system of a turret in own ship.

(b) TURRET MAINTENANCE.—Know in detail the prescribed turret maintenance inspections, and adjustments.

(c) SAFETY PRECAUTIONS.—Thorough knowledge of turret safety precautions and casualty procedures. Thorough and detailed knowledge of pertinent safety precautions covered in U. S. Navy Regulations, Chapter 24, Section 2.

(d) ORDNANCE.—General knowledge of bombs, mines, torpedoes, demolition outfits, pyrotechnics, depth charges, and smoke-screen generators. Types of explosives, and stowage, handling, and pertinent safety precautions, including special upkeep and readiness procedures under extreme climatic conditions. (On large ships, examinations in underwater ordnance should be given only when adequate facilities for such instruction are available.)

(e) EQUIPAGE.—Procedures for obtaining spare parts for the types of guns, mounts, and apparatus pertaining thereto on ship to which attached. Knowledge of allowance lists.

(f) HYDRAULICS.—Complete knowledge of hydraulic casualties and the necessary remedial action.

(g) D-5205.03 (2) (B).

(2) CHIEF TURRET CAPTAIN.

(A) PRACTICAL FACTORS.

(a) SUPERVISION AND TRAINING.—Demonstrate ability to function as a

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junior gunnery division officer. Demonstrate proficiency in the selection and training of gun crews and ordnance repair parties.

(b) HYDRAULIC EQUIPMENT.—Demonstrate ability to adjust and maintain all ordnance hydraulic equipment in own ship.

(c) AIR SYSTEM.—Trace the high and low pressure air systems in use in Gunnery Department on board own ship.

(d) D-5205.031 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) SOURCES OF INFORMATION.—Current sources of information regarding guns, mounts, turrets, magazines, and ordnance equipment.

(b) DEMOLITION.—Demolition, including types of charge, and the methods used for demolition at sea, and on shore.

(c) ELECTRIC-HYDRAULIC UNITS.—Detailed knowledge of the safety precautions, trouble analysis, disassembly, and assembly of electric hydraulic units on own ship.

(d) REPORTS AND FORMS.—Reports to be made by the Gunnery Department and familiarity with the forms used.

(e) D-5205.031 (1) (B).

D-5205.04. Minemen.

(1) MINEMAN, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) ASSEMBLY.—Demonstrate ability to assemble a mine of a Mark in current service use and except for firing mechanisms, make tests and adjustments in the manner and order used in the service mine assembly line. In performing this assembly, demonstrate correct use of all standard and special tools normally employed. Demonstrate ability to make and solder electrical connections.

(c) PREPARATION FOR LAYING.—Demonstrate ability to make all checks on the mine assembled under factor (1) (A) (b) above as required in preparation for planting with special emphasis on detonator installation and general safety factors. Demonstrate how to jettison that mine in safe condition.

(d) INSTRUMENTS.—In conjunction with practical factors (1) (A) (b) and (c) above, demonstrate proper use of an ammeter, a voltmeter, and an ohmmeter.

(e) MINE HANDLING.—Demonstrate ability to perform any specified mine handling, loading, and laying duties involving the equipment on one of the following:

(i) Surface mine layer

(ii) Aircraft

(iii) Submarine

(f) IDENTIFICATION.—Know the proper names, Marks and Mods of all components of mine assembled under (1) (A) (b) above.

(g) DEPTH CHARGES.—Demonstrate ability to perform any specified depth charge handling, setting, and dropping duties involving equipment of type of vessel or aircraft to which attached.

(B) EXAMINATION SUBJECTS.

(a) ARITHMETIC.—Working knowledge of elementary arithmetic, including fractions, decimals, and the computation of areas and volumes.

(b) ELEMENTARY MECHANICS.—Knowledge of elementary mechanics. Understand the following terms: weight, pressure, center of gravity, velocity, acceleration. Know how to compute water pressure for specified depths.

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Know the principles of buoyancy and how to solve elementary problems involving buoyancy.

(c) ELECTRICITY.—In conjunction with the study of elementary electricity, understand the following terms: voltage, current, resistance. Know the construction and use of fuses, motors, solenoids, galvanic cells, and batteries. Be able to work simple problems involving Ohm's law.

(d) MAGNETIC FIELDS.—Elementary knowledge of magnetic fields.

(e) LUBRICANTS.—Know lubricants and preservative compounds and their use with mines.

(f) EXPLOSIVES.—Knowledge of safety precautions used in handling and stowing explosive components of mines. Know magazine requirements for these components. Know how magazines are lighted, cooled, ventilated, and flooded. Know characteristics of explosives used in mines and identify commonly used explosives by appearance.

(g) MINES.—Elementary knowledge of all principal Marks of mines in current use.

(h) OPERATING DETAILS.—Know all operating details of the mine assembled under practical factor (1) (A) (b) above.

(i) -UPKEEP AND OVERHAUL.—Know the overhaul and upkeep procedures for the mine assembled under practical factor (1) (A) (b) above.

(j) MINE LAYING.—Detailed knowledge of steps in connection with checking and planting of the mine under practical factor (1) (A) (b) above.

(k) MINE SWEEPING.—Know the elementary principles used in sweeping contact, magnetic, and acoustic mines.

(l) DEPTH CHARGES.—Elementary knowledge of all principal Marks of depth charges in current use.

(m) D-5203.

(C) SCHOOL QUALIFICATIONS.

(a) Must be a graduate of an approved Mine or Mine Warfare School or must have had a minimum of four months' experience in mine assembly.

(2) MINEMAN, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) SUBASSEMBLIES.—Demonstrate ability to overhaul, adjust, and test, under proper supervision, subassemblies of two types of mines in current use Know the proper names, Marks and Mods of all components of these two types of mines.

(b) MINE ASSEMBLY.—Demonstrate ability, under proper supervision, to assemble and test two types of mines in current use.

(c) TRAINING.—Demonstrate ability to instruct and train personnel of lower ratings in connection with mine assembly and handling.

(d) PIPE FITTING.—Demonstrate ability to do simple pipe fitting. Demonstrate ability to use taps and dies correctly.

(e) LATHE.—Demonstrate ability to operate a lathe and do simple turning and boring.

(f) DEPTH CHARGES.—Demonstrate ability to overhaul, test, and adjust depth charges and depth charge release mechanisms.

(g) D-5205.04 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) MINES.—Detailed knowledge of overhaul, testing, adjustment (and how to determine proper adjustment if variable), upkeep, and operation of mines assembled under (2) (A) (b) above.

(b) MINE LAYING.—Know safe mine spacing and computation of mine planting intervals.

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(c) MINE ASSEMBLY PROCEDURE.—General knowledge of assembly procedure of principal types of mines in current use.

(d) MINE HANDLING GEAR.—Knowledge of mine handling gear and control devices.

(e) COUNTERMEASURES.—General knowledge of countermeasures employed to protect ships from influence type mines.

(f) DEPTH CHARGES.—Knowledge of overhaul, adjustment, test, upkeep, and operation of depth charges and depth charge release mechanisms.

(g) D-5205.04 (1) (B).

( C) SCHOOL QUALIFICATIONS.

(a) D-5205.04 (1) (C).

(3) MINEMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise rigging, testing, adjustment, repair, overhaul, upkeep, and operation of mines and minelaying gear.

(b) SPECIAL TESTS AND ADJUSTMENTS—Demonstrate, under supervision, ability to test and adjust all mechanisms employed in those service mines which are used by the command or unit to which attached.

(c) INSTRUMENTS.—Demonstrate ability to use measuring instruments, including Wheatstone Bridge and Multi-Range Meter.

(d) D-5205.04 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) MINES.—Detailed knowledge of the construction, overhaul, testing, adjustment, upkeep, subassembly preparation, assembly, and operation of the principal types of mines in current use.

(b) SAFETY PRECAUTIONS.—Know the precautions to be observed in handling and laying the principal types of mines in current use.

(c) ELECTRICITY.—Know Kirchoff's laws. Be able to work electrical problems on series, parallel, and series parallel circuits. Be able to trace out electrical circuits and illustrate schematically.

(d) MINE CIRCUITS.—Know the general operating principles of devices used in electrical circuits of mines.

(e) ELECTROLYTIC ACTION.—Know the principles and effect of electrolytic action on metal objects submerged in sea water.

(f) TORPEDOES.—General knowledge of operating principles of torpedoes and methods used for their launching.

(g) D-5205.04 (2) (B).

(4) CHIEF MINEMAN.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to function as junior mining officer. Demonstrate proficiency in the supervision of mining activities.

(b) INSTRUMENTS.—Demonstrate ability to use the instruments employed in duties supervised under (4) (A) (a) above.

(c) D-5205.04 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) MINE MECHANISMS.—Detailed knowledge of adjustment and testing of the principal types of mines and mine mechanisms used by the command or unit to which attached.

(b) MINE FIELDS.—Know the theory and practices governing the use of both contact and influence mines in mine fields.

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(c) MINE MATERIEL.—Knowledge of allowances and procedures to be followed in obtaining and surveying mine materiel. Know the factors governing endurance of all types of mines.

(d) PILOTING.—Have an elementary knowledge of piloting and navigational aids, including especially the following: buoyage systems, charts, tide and currents, set and drift.

(e) D-5205.04 (3) (B).

D-5205.05. Torpedoman's Mates.

Note: In examining candidates for advancement in rating, torpedoman's mates (TM) attached to submarines shall not be required to demonstrate their ability or pass examinations in factors and subjects pertaining to depth charges, torpedo directors, and surface torpedo batteries.

(1) TORPEDOMAN'S MATE, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) TOOLS.—Demonstrate ability to use properly all hand tools, including special tools, used in the maintenance of torpedoes and torpedo battery.

(c) LUBRICATION.—Demonstrate ability to lubricate properly torpedoes and torpedo battery in accordance with lubrication charts.

(d) ASSEMBLY AND DISASSEMBLY.—Demonstrate ability to attach and remove the four major assemblies of a torpedo (head, airflask, afterbody, and tail).

(e) MAINTENANCE.—Demonstrate ability to carry out routine maintenance procedures on torpedo battery to which attached. Demonstrate ability to perform all upkeep routines on a ready or fully-ready torpedo, using an approved check-off list. Demonstrate ability to remove and reinstall the (1) immersion gear housing, (2) control valve, (3) starting gear, and (4) gyro. Demonstrate ability to disassemble all parts on engine bulkhead and remove and reinstall main engine. Demonstrate ability to disassemble and reinstall the water compartment bulkhead and the fuel compartment. Demonstrate ability to make tests of (1) check valves, (2) stop and charging valve, (3) fuel and water compartments, and (4) air flask.

(f) AIR FLASK.—Demonstrate ability to charge or boost a torpedo air flask, observing all safety precautions.

(g) OPERATION.—Demonstrate ability to operate properly the torpedo battery on ship to which attached.

(h) IMPULSE CHARGE.—Demonstrate ability to prepare a torpedo impulse charge for firing, observing all safety precautions.

(i) DIRECTOR.—Demonstrate ability to estimate target angle and target speed. Demonstrate ability to set up torpedo director and tube mount sight using own estimates.

(j) DEPTH CHARGES.—Demonstrate ability to stow, handle, load, and prepare depth charges for firing. Demonstrate ability to install the pistol, detonator, booster, and booster extender, and to make ordered depth settings. Demonstrate ability to operate depth charge projectors aboard own ship by both local and bridge control, observing all safety precautions.

(k) WAR SHOT.—Demonstrate ability to prepare a torpedo for war shot, using approved check-off sheet.

(B) EXAMINATION SUBJECTS.

(a) TORPEDOES.—General knowledge of torpedo construction and operation,

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including fuel, air, and water systems of the torpedoes assigned to own ship or station.

(b) MAINTENANCE AND RECOVERY.—Routine maintenance of torpedoes and torpedo battery. Prefiring tests and post-run treatment. Recovery of torpedoes, including special equipment used in recovery boat.

(c) ELECTRICITY.—Elementary knowledge of electricity. Care of electrical equipment used in connection with torpedo battery to which assigned.

(d) SAFETY PRECAUTIONS.—Safety precautions to be observed in stowage, handling, recovery, and firing of torpedoes, including warheads, boosters, detonators, primers, and impulse charges. Stowage and care of explosives, including sprinkling, flooding, lighting, and ventilating of magazines.

(e) DEPTH CHARGES.—Have a general knowledge of construction, operation, and maintenance of depth charges, release gear and projectors. Know the safety precautions to be observed in stowage, handling, and firing of depth charges. Understand the operation of depth charge pistol and booster extender mechanisms, and know how they are tested.

(f) DIRECTION.—General knowledge of triangle of torpedo fire and torpedo fire control system.

(g) TORPEDO TUBES.—Working knowledge of operation, adjustments, and settings for torpedo tubes of ship to which attached.

(h) D-5203.

(2) TORPEDOMAN'S MATE, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) HAND TOOLS.—Demonstrate ability to perform emergency brazing, soldering, and sweating operations as required for torpedoes and tubes and on torpedo battery to which attached.

(b) BLUEPRINTS AND DRAWINGS.—Demonstrate ability to read blueprints, photoprints, and related ordnance drawings and descriptive sketches.

(c) TORPEDO BATTERY CAPTAIN.—Demonstrate ability to take charge of the torpedo battery on the ship to which attached and to make that battery ready for firing.

(d) DEPTH CHARGES.—Demonstrate ability to superintend the complete overhaul, testing, and adjustment of a depth charge for firing. Demonstrate ability to disassemble, overhaul, assemble, calibrate, and test depth charge pistol and booster extender mechanisms.

(e) MAINTENANCE.—Demonstrate ability to direct and supervise torpedo and depth charge battery maintenance, including the maintenance of logs and records.

(f) BATTERY ALIGNMENT.—Demonstrate ability to check torpedo director on bench marks and to train torpedo tube mounts.

(g) TORPEDO CONTROL.—Demonstrate ability to take charge of a tube mount in local control, indicating knowledge of the torpedo control problem.

(h) D-5205.05 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) MAINTENANCE.—Detailed knowledge of maintenance procedures for torpedoes and tubes. Knowledge of the treatment after run to prevent deterioration. Explain "ready condition" and "fully-ready condition."

(b) RECORDS.—Know how to keep torpedo logs and record sheets of ship or station to which attached.

(c) TORPEDOES.—Detailed knowledge of the working of the component parts of an air torpedo and their regulation and adjustment.

(d) EXPLOSIVES.—General knowledge of construction, operation, maintenance,

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and safety precautions of warheads, depth charges, and mines including exploders, boosters, pistols, and detonators.

(e) TORPEDO CONTROL.—Standard commands and meaning of the basic torpedo fire control terms. Methods of torpedo control used on station to which attached. Familiarity with the action of the mechanical and electrical torpedo firing mechanisms and firing circuits.

(f) DEPTH CHARGE CONTROL.—Familiarity with the action of the mechanical and electrical depth charge firing mechanisms and firing circuits.

(g) MINES.—Working knowledge of mines carried by ship to which attached.

(h) SAFETY PRECAUTIONS.—Thorough and detailed knowledge of pertinent safety precautions covered in U. S. Navy Regulations, Chapter 24, Section 2.

(i) D-5205.05 (1) (B).

(3) TORPEDOMAN'S MATE, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) TORPEDOES.—Demonstrate ability to remove, overhaul, test, and reinstall the (1) gyro, (2) depth gear, (3) housing, (4) reducing valve, (5) control valve, (6) check valve, (7) engine, and (8) starting mechanism. Demonstrate ability to remove, disassemble, assemble, test, and install all mechanical types of torpedo exploder mechanisms, using approved check-off lists and observing all safety precautions.

(b) AMMUNITION.—Demonstrate ability to conduct shipboard examinations and tests of smokeless and black powder, and demonstrate knowledge of proper handling of powder and impulse charges.

(c) MAINTENANCE.—Demonstrate ability to direct and supervise torpedo and torpedo battery maintenance, including the preparation of required records.

(d) SUPERVISION.—Demonstrate ability to take charge of a torpedo battery.

(e) D-5205.05 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) GYRO.—Thorough familiarity with the theory, care, adjustment, and balancing of the gyro of a torpedo.

(b) DEPTH SETTINGS.—Knowledge of the depth settings to be used against various types of enemy warships.

(c) EQUIPAGE.—Procedures for obtaining spare parts for torpedoes, mounts, and apparatus pertaining thereto. Knowledge of allowance lists.

(d) ORDNANCE.—General knowledge of bombs, mines, demolition outfits, guns, pyrotechnics, and smoke-screen generators. Types of explosives, and stowage, handling, and pertinent safety precautions; special upkeep and readiness procedures necessary under extreme climatic conditions.

(e) D-5205.05 (2) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Must be a graduate of an advanced course at an official torpedo school OR must have served at least six (6) months in a torpedo shop actually engaged in overhauling and servicing torpedoes.

(4) CHIEF TORPEDOMAN'S MATE.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to function as a Junior gunnery division officer. Demonstrate ability to supervise the work and training of

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lower ratings in the performance of all duties in connection with torpedoes, the torpedo battery, and depth charge equipment on board ship or station to which attached.

(b) TORPEDO CONTROL.—Demonstrate ability to set up, under all methods of fire, director control of torpedo battery to which attached.

(c) AIR SYSTEM.—Demonstrate ability to trace the complete air pressure systems in use in Gunnery Department on board ship to which attached.

(d) D-5205.05 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) PUBLICATIONS.—Current regulations, orders, and instructions regarding torpedoes, depth charges, and their related equipment, as given in U. S. Navy Regulations, Bureau of Ordnance Manual, and other official publications.

(b) SHIPMENT OF TORPEDOES.—Methods of preparing torpedoes for shipment.

(c) DEMOLITION.—Demolition, including types of charge, and the method of placing for demolition at sea and on shore.

(d) EXPLODER MECHANISMS.—Construction, operation, maintenance and tests.

(e) DEPTH CHARGES.—Knowledge of all types of depth charges and depth charge equipment, including latest gear. Principles of depth charge control.

(f) REPORTS AND FORMS.—Reports to be made by the Gunnery Department and familiarity with the forms used.

(g) D-5205.05 (3) (B).

D-5205.051. Torpedoman's Mates E (Electrical).

(1) TORPEDOMAN'S MATE E, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) TOOLS AND MEASURING INSTRUMENTS.—Demonstrate ability to use properly all hand tools, including special tools used in the maintenance of torpedoes and torpedo tubes. Demonstrate ability to use ammeter, voltmeter, ohmmeter, megger, hydrometer, tachometer, and strobotac.

(c) LUBRICATION.—Demonstrate ability to lubricate properly torpedoes and torpedo tubes.

(d) ASSEMBLY AND DISASSEMBLY.—Demonstrate ability to attach and remove the major assemblies of a torpedo. Remove and replace motor, and install batteries in battery compartment of electric torpedoes.

(e) MAINTENANCE.—Demonstrate ability to carry out routine maintenance procedures on torpedo tubes. Demonstrate ability to perform upkeep routines on torpedoes. Demonstrate ability to disassemble, assemble, test, and install: (1) gyro, (2) depth gear, (3) housing, (4) reducing valve, (5) starting gear, (6) stop valve, and (7) charging valve. Demonstrate ability to charge or boost a torpedo air flask, observing all safety precautions.

(f) STORAGE BATTERIES.—Demonstrate ability to water and charge storage batteries, and to take voltage and specific gravity readings.

(g) OPERATION.—Demonstrate ability to operate properly the torpedo tubes on ship to which attached.

(h) FIRE CONTROL.—Demonstrate ability to man fire control station at the tube nest (gyro-angle indicator-regulator). Demonstrate knowledge of firing and ready light circuits.

(i) EXPLODER MECHANISMS.—Demonstrate ability to make an exploder mechanism ready for a war shot.[/blockquote]

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(B) EXAMINATION SUBJECTS.

(a) TORPEDOES.—General knowledge of torpedo construction and operation, including air control and electrical systems.

(b) MAINTENANCE AND RECOVERY.—Routine maintenance of torpedoes, tubes, and storage batteries. Know prefiring checks and post run treatment.

(c) ELECTRICITY.—Elementary knowledge of electricity. Understand the use and care of electrical equipment employed in connection with torpedoes, tubes, and storage batteries. Elementary knowledge of heating and charging panels.

(d) SAFETY PRECAUTIONS.—Know the safety precautions to be observed in connection with the following: (1) stowage, handling, and firing of torpedoes, including warheads, boosters, detonators, primers, impulse charges; (2) hydrogen formation, elimination, and ventilation; (3) motor test stand; (4) stowage and care of explosives in magazines, including sprinkling, flooding, lighting, ventilating, etc. Know proper use of fire extinguishing equipment for electrical apparatus.

(e) FIRST AID.—Knowledge of first aid with emphasis upon treatment for electrical shock and burns, and acid bums.

(f) FIRE CONTROL.—General knowledge of fire control circuit, firing, and ready light circuits.

(g) TORPEDO TUBES.—Working knowledge of operation, adjustments, and settings for torpedo tubes.

(h) ELECTRICAL THEORY.—General knowledge of series motor theory, secondary batteries, solenoids, and relays.

(i) D-5203.

(C) SCHOOL QUALIFICATIONS.

(a) On and after 1 July 1943, must be a graduate of an official Electrical Torpedo School approved by the Bureau of Naval Personnel. Prior to 1 July 1943, must be a graduate of the Electrical Torpedo School, Westinghouse Electric & Manufacturing Company, Sharon, Pa. (This requirement may be waived by commanding officers in the case of candidates with six (6) months' practical experience at an approved Electrical Torpedo Overhaul Shop who meet the qualifications of (1) (A) and (1) (B) with an excellent performance and examination record.)

(2) TORPEDOMAN'S MATE E, SECOND CLASS

(A) PRACTICAL FACTORS.

(a) REPAIRS.—Demonstrate ability to perform emergency soldering of electrical connections. Demonstrate ability to remove and replace broken stud on afterbody hand-hole flange, broken joint screws, etc. Demonstrate ability to make minor repairs to the battery and motor.

(b) TORPEDOES.—Demonstrate the steps necessary in preparing a fully-ready torpedo (preliminary and final adjustments).

(c) EXPLODER MECHANISM.—Demonstrate ability to assemble, disassemble, test, and install torpedo exploder mechanisms.

(d) BLUEPRINTS AND DRAWINGS.—Demonstrate ability to read blueprints, photoprints, and related ordnance drawings and descriptive sketches.

(e) TORPEDO BATTERY CAPTAIN—Demonstrate ability to take charge of a torpedo battery, and to prepare battery for firing.

(f) FIRE CONTROL.—Demonstrate ability to test operation of all fire control equipment.

(g) D-5205.051 (1) (A).

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(B) EXAMINATION SUBJECTS.

(a) MAINTENANCE.—Detailed knowledge of maintenance procedures for torpedoes, tubes, and batteries. Knowledge of after-run treatment. Explain, "ready condition" and "fully-ready condition" and how to conduct "fully-ready" test.

(b) (RECORDS.—Know how to keep torpedo logs and record sheets of ship or station to which attached.

(c) TORPEDOES.—Detailed knowledge of the working of component parts of torpedoes, their regulation and adjustment.

(d) EXPLOSIVES.—General knowledge of the construction, operation, and maintenance of warheads, including exploders, boosters, and detonators. Know the safety precautions involved.

(e) TORPEDO CONTROL.—Know the standard commands, and the meaning of basic torpedo fire control terms. Explain the methods of torpedo control. Detailed knowledge of the action of the mechanical and electrical torpedo firing mechanisms and firing circuits. Show by diagram the torpedo control system in own ship.

(f) SAFETY PRECAUTIONS.—Thorough and detailed knowledge of pertinent safety precautions covered in U. S. Navy Regulations, Chapter 24, Section 2.

(g) ELECTRICAL THEORY.—Detailed knowledge of series motor theory, secondary batteries, solenoids, relays, vacuum tubes, silverstats, and other electrical parts.

(h) D-5205.051 (1) (B).

(C) SCHOOL QUALIFICATIONS.

(a) D-5205.051 (1) (C), as applied to (2) (A) and (2) (B) above.

(3) TORPEDOMAN'S MATE E, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) TORPEDOES.—Demonstrate ability to remove, overhaul, test, and reinstall component parts of a torpedo, and to make that torpedo ready for firing. Demonstrate ability to install and remove torpedo exploder mechanisms, using approved check-off lists and observing all safety precautions. Demonstrate ability to balance and adjust the torpedo gyro.

(b) MAINTENANCE.—Demonstrate ability to direct and supervise torpedo battery maintenance, including preparation of required records.

(c) SUPERVISION.—Demonstrate ability to take charge of a torpedo battery.

(d) D-5205.051 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) GYRO.—Thorough familiarity with the theory, care, adjustment, and balancing of the torpedo gyro.

(b) DEPTH SETTINGS.—Knowledge of current doctrine for the depth settings to be used against various types of enemy warships.

(c) EQUIPAGE.—Procedures for obtaining spare parts for torpedoes and related equipment. Knowledge of allowance lists.

(d) EXPLOSIVES.—Stowage, handling, and pertinent safety precautions related to explosives.

(e) SPECIAL UPKEEP PROCEDURES.—Special upkeep and readiness procedures necessary under extreme climatic conditions.

(f) D-5205.051 (2) (B).

(C) SCHOOL QUALIFICATIONS.

(a) D-5205.051 (1) (C), as applied to (3) (A) and (3) (B) above.

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(4) CHIEF TORPEDOMAN'S MATE E.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to function as a Junior torpedo officer. Demonstrate ability to supervise the work and training of lower ratings in the performance of all duties in connection with torpedoes, including the torpedo battery of the ship to which attached.

(b) TORPEDO BATTERY.—Demonstrate ability to set up, under all methods of fire, control of torpedo battery to which attached.

(c) AIR SYSTEM.—Demonstrate ability to trace the complete air pressure system in use on board ship to which attached.

(d) D-5205.051 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) PUBLICATIONS.—Know the current regulations, orders, and instructions regarding torpedoes and related equipment, as given in U. S. Navy Regulations, Bureau of Ordnance Manual, Bureau of Ordnance pamphlets and circular letters, and other official publications.

(b) SHIPMENT OF TORPEDOES.—Methods of preparing torpedoes for shipment.

(c) EXPLODER MECHANISMS.—Construction, operation, maintenance, and tests.

(d) REPORTS.—Reports to be made by the torpedo officer and familiarity with the forms used.

(e) D-5205.051 (3) (B).

(C) SCHOOL QUALIFICATIONS.

(a) D-5205.051 (1) (C), as applied to (4) (A) and (4) (B) above.

D-5205.06. Quartermasters.

(1) QUARTERMASTER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) VISUAL ACUITY.—Pass 20/20 visual acuity examination.

(c) SPEECH.—Demonstrate mental alertness and clarity of speech.

(d) STEERSMAN.—Must be a qualified steersman on ship to which attached. Demonstrate ability to shift steering control to and from the various steering stations.

(e) SOUNDINGS.—Demonstrate ability to take soundings by all methods available in own ship.

(f) INSTRUMENTS AND APPARATUS—Demonstrate ability to:

(i) Obtain and plot ranges and bearings.

(ii) Read an anemometer and convert to true wind.

(iii) Make whistle and bell signals, flag and light signals for all emergencies such as fire, collision, man overboard (Current Instructions), etc.

(iv) Operate searchlights in ship to which attached.

(v) Locate and operate during darkness all light switches and electrical signal apparatus controlled from navigation bridge.

(g) FLAGS AND PENNANTS.—Demonstrate ability to recognize signal flags and pennants.

(h) COMMUNICATING WITH AIRCRAFT—Demonstrate ability to follow established procedure in communicating with aircraft.

(B) EXAMINATION SUBJECTS.

(a) SENDING AND RECEIVING.—(1) Transmit and receive 20 groups of 5-

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character code by yard arm blinker in 4 minutes. (2) Transmit and receive 20 groups of 5-character code by searchlight in 4 minutes. (3) Transmit and receive a plain language message of 75 characters by semaphore in 1 minute.

(b) CHARTS.—Know how charts are stowed on board ship, and how catalogues and portfolios are made up.

(c) BUOYAGE SYSTEM.—Know the United States buoyage system.

(d) COMPASSES.—Know in general the causes of compass error and the method of applying corrections to obtain magnetic and true course. Know the precautions to be observed in the vicinity of the magnetic compass. Know the information that is given to the gyro electrician under way. Know how to compare the gyro compass with the standard compass. Know how to read and take bearings with the gyro compass, and how to determine if the ship is dragging.

(e) INSTRUMENTS.—Know the care to be observed in the handling of all optical instruments. Understand the meaning of humidity and its application in wet-bulb and dry-bulb thermometers. Know the principles of the barometer, and the construction and use of the vernier on the mercurial barometer. Know why temperature correction is applied to the readings of mercurial barometer. Understand the construction and relative accuracy of the aneroid barometer.

(f) RULES FOR PREVENTING COLLISION.—Know the number and characteristics of lights carried under way and at anchor by steam vessels, pilot vessels, and sailing craft. Know the number and characteristics of lights carried by small boats under way. Know the fog signals under way and at anchor, including interval between and the method of making signals. Know the whistle signals and rules of the road, steam vessels crossing. Know the characteristics and use of all lights employed by naval vessels.

(g) SHIP'S LOG.—Know how, where, and when to obtain the data for the ship's log. Know the proper phraseology to employ in writing up the quartermaster's notebook.

(h) PUBLICATIONS.—Know the names, general uses, and sources of supply of publications used by the navigator.

(i) FLAGS AND ENSIGNS.—Know the national and man-of-war ensigns of the principal maritime powers, and know how to determine the identity of any flag not recognized. Know the personal flags of flag officers of the United States Navy, and the navies of the principal foreign powers.

(j) TIME.—Know the system of time zones. Know how to compute time of sunrise and sunset.

(k) D-5203.

(2) QUARTERMASTER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate competence to stand a quartermaster watch under way and in port.

(b) PUBLICATIONS.—Demonstrate ability to correct charts, sailing directions, and light lists. Demonstrate a knowledge of the content of other publications of importance to the navigator. Demonstrate a knowledge of the symbols used on charts.

(c) AIDS TO NAVIGATION.—Demonstrate ability to identify lights and other aids to navigation.

(d) TABLES.—Demonstrate ability to use the tide and current tables correctly. Know how to consult commonly used tables in the American Practical Navigator ("Bowditch").

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(e) CHRONOMETER.—Demonstrate ability to obtain a chronometer tick, and keep a chronometer record book.

(f) NAVIGATIONAL INSTRUMENTS.—Demonstrate ability to use, give the proper care to, and to maintain all instruments used by the navigator.

(g) D-5205.06 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) SENDING AND RECEIVING.—(1) Transmit and receive 24 groups of 5-character code by flashing light in 3 minutes. (2) Transmit and receive a plain-language message of 100 characters by semaphore in 1 minute.

(b) COMPASSES.—Know all the steps in correcting and compensating the magnetic compass. Know the principles of, and the general construction of the gyro compass.

(c) RULES FOR PREVENTING COLLISION.—(1) International Rules of the Road. (2) Inland Rules applicable along the coast where candidate's ship is normally based.

(d) WEATHER.—Know the laws of storms. Know the indications and the action to be taken in the event of storms common to North America (northeaster, tropical hurricane, norther, Santa Ana).

(e) HONORS.—Know in full, the honors rendered by, and on board, naval vessels.

(f) D-5205.06 (1) (B).

(3) QUARTERMASTER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) STARS.—Demonstrate ability to identify stars.

(b) STEERING.—Demonstrate ability to steer a ship in restricted waters, and in making landings.

(c) D-5205.06 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) SENDING AND RECEIVING.—(1) Transmit and receive 24 groups of 5-character code by flashing light in 3 minutes. (2) Transmit and receive a plain language message of 100 characters by semaphore in 1 minute.

(b) NAVIGATION.—Definitions of the terms used in nautical astronomy.

Problems in dead reckoning, azimuths, and compass correction. Radio aids to navigation.

(c) RULES FOR PREVENTING COLLISION.—(1) International Rules of the Road. (2) Inland Rules for United States Coastal Waters.

(d) WEATHER.—Have a general knowledge of meteorology (aerology) and be able to interpret synoptic weather messages.

(e) SOURCES OF INFORMATION.—Know the functions of the Hydrographic Office, Naval Observatory, and the Coast and Geodetic Survey.

(f) D-5205.06 (2) (B).

(4) CHIEF QUARTERMASTER.

(A) PRACTICAL FACTORS.

(a) ADMINISTRATION.—Demonstrate ability to act as assistant navigator and junior division officer.

(b) NAVIGATION.—Demonstrate ability to take sun and star sights and to determine ship's position therefrom. Demonstrate a full knowledge of dead reckoning, and the use of radio bearings and soundings as aids to determining the ship's position.

(c) D-5205.06 (3) (A).

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(B) EXAMINATION SUBJECTS.

(a) DAY'S WORK.—Know the routine of the day's work of a navigator at sea.

(b) RULES FOR PREVENTING COLLISION.—Know thoroughly the International and Inland Rules of the Road.

(c) WEATHER.—Know the use of the synoptic weather charts, and be able to construct synoptic charts from weather messages received.

(d) BUOYAGE SYSTEMS.—Washington system of buoyage, and where used. St. Petersburg system of buoyage, and where in effect. Variations from the standard systems of buoyage in the United States and foreign ports.

(e) D-5205.06 (3) (B).

D-5205.07. Signalmen.

(1) SIGNALMAN, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) VISUAL ACUITY.—Pass 20/20 visual acuity examination.

(c) SPEECH.—Demonstrate mental alertness and clarity of speech.

(d) INSTRUMENTS.—Demonstrate ability to use a stadimeter, pelorus, and navigator's rangefinder.

(e) SIGNAL APPARATUS.—Locate and operate during darkness all light switches and electrical signal apparatus controlled from signal bridge. Operate searchlights in ship to which attached.

(B) EXAMINATION SUBJECTS.

(a) VISUAL SIGNALING.—Transmit and receive at the following speeds: (1) 24 groups of 5-character code by flashing light in 3 minutes. (2) A plain language message of 100 characters by semaphore in 1 minute.

(b) FLAG HOIST SIGNALING.—Know all signal flags and pennants used in the Navy. How to distinguish a call from a signal in flag hoists. The function of repeaters. The rules of visual responsibility. Governing flags, their meaning and uses.

(c) COMMUNICATION PROCEDURES.—Know the uses of communication operating signals and all prosigns used in visual communications. Communication terms as listed in Communication Instructions. Naval communication publications used aboard ship including Signal Books, Call Books, Registry of Vessels Books, and Fleet and Force Regulations.

(d) MARITIME AND PERSONAL FLAGS.—Know the national and man-of-war ensigns of the principal maritime powers and how to determine the identity of any flag not recognized. The rules governing the display of the United States ensign. Be able to identify the personal flags of the United States Navy and navies of the principal maritime powers. Know how to communicate visually with a merchant ship at sea.

(e) INTERNATIONAL RULES OF THE ROAD.—Know number and characteristics of lights carried under way and at anchor by steam vessels, pilot vessels, and sailing craft. Fog signals under way and at anchor, including interval between, and the method of making signals. Number and characteristics of lights carried by small boats under way, whistle signals, and rules of the road, steam vessels crossing.

(f) SIGNALS.—Storm warnings. Distress signals. Emergency signals (visual and whistle). Signals to, lifeboats. Special signals to and from aircraft.

(g) QUARTERMASTER DUTIES.—Know the precautions to be observed in the vicinity of a magnetic compass. Know how to take bearings, and how to determine if the ship is dragging.

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(h) AIRCRAFT.—Characteristics of the various types of naval aircraft, and their insignia.

(i) D-5203.

(2) SIGNALMAN, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) SIGNAL FLAGS.—Demonstrate ability to make and repair signal flags and halyards.

(b) COMMUNICATION.—Have a working knowledge of communicating with aircraft and ships by radio telephone.

(c) D-5205.07 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) VISUAL SIGNALING.—Transmit and receive at the following speeds: (1) 30 groups of 5-character code by flashing light in 3 minutes. (2) A plain language message of 125 characters by semaphore in 1 minute.

(b) FLAG HOIST SIGNALING.—Know the special meanings of all flags and pennants. Know how to make any "Commander" or "Collective" call by flag hoist without referring to the visual call book.

(c) COMMUNICATIONS SECURITY.—Know the precautions to be observed in order to guard the security of cryptographic materials.

(d) HONORS.—Know in full the honors rendered by, and on board, naval vessels. Be familiar with the table of honors.

(e) RULES OF THE ROAD.—Know the International Rules of the Road and the Inland Rules applicable to naval districts along the coast where candidate's ship is normally based.

(f) COMPASS.—Know the causes of compass error and the method of applying corrections. The information that is given to gyro electricians under way.

(g) TIME.—Know how to convert time to arc and arc to time. The system of time zones and its application. How to determine the time of sunrise and sunset.

(h) D-5205.07 (1) (B).

(3) SIGNALMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take charge of a watch and handle traffic as a supervisor.

(b) D-5205.07 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) VISUAL SIGNALING.—Transmit and receive at the following speeds: (1) 30 groups of 5-character code by flashing light in 3 minutes. (2) A plain language message of 125 characters in 1 minute.

(b) COMMUNICATION PROCEDURE—Know naval visual procedure, naval radiotelephone procedure, and International Procedure.

(c) METEOROLOGY.—Have a general knowledge of meteorology (aerology) and be able to interpret synoptic weather messages.

(d) CHARTS.—Know how charts are catalogued, stowed, and corrected. Know the meaning of chart symbols.

(e) SOURCES OF INFORMATION.—Know the functions of the Hydrographic Office, Naval Observatory, and the Coast and Geodetic Survey.

(f) D-5205.07 (2) (B).

(4) CHIEF SIGNALMAN.

Note: A signalman, first class, is also eligible for advancement to chief quartermaster. (See D-5205.06.)

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(A) PRACTICAL FACTORS.

(a) ADMINISTRATION.—Demonstrate ability to act as ship's signal officer and junior division officer.

(b) NAVIGATION.—Demonstrate ability to take sun and star sights, and determine the ship's position therefrom. Demonstrate familiarity with other aids for determining the ship's position including a full knowledge of dead reckoning and the use of radio bearings and soundings.

(c) D-5205.07 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) GENERAL SIGNAL BOOK.—Detailed knowledge of arrangement and use of general signal book.

(b) CHRONOMETERS.—Care of chronometers. Chronometer records.

(c) BUOYAGE SYSTEMS.—Know the Washington system of buoyage, and where used. St. Petersburg system of buoyage, and where in effect. Variations from the standard systems of buoyage in the United States and foreign ports.

(d) PUBLICATIONS.—Know how to correct charts, Bailing directions, and light lists. Be able to use tide and current tables.

(e) D-5205.07 (3) (B).

D-5205.08. Fire Controlmen.

(1) FIRE CONTROLMAN, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) FIRE CONTROL STATION.—Demonstrate ability to man a fire control station, including comm unication circuits.

(c) GUNS AND TURRETS.—Demonstrate ability to prepare a gun for boresighting and to tram a gun or turret.

(d) TOOLS AND MEASURING INSTRUMENTS.—Demonstrate ability to use properly all hand tools, including special tools used in the maintenance of the fire control equipment on which stationed.

(e) EQUIPMENT.—Demonstrate ability to energize and to secure all fire control equipment in own battery.

(f) SYNCHRO-GENERATOR AND SYNCHRO-MOTOR.—Demonstrate ability to check the zero position of a synchro-generator and set the zero position of a synchro-motor.

(g) FIRE CONTROL TELEPHONES.—Demonstrate ability to repair fire control telephones.

(h) DRAWINGS AND DIAGRAMS.—Demonstrate ability to read simple mechanical drawings and wiring diagrams.

(i) LUBRICATION.—Demonstrate ability to lubricate properly the equipment to which assigned, in accordance with the lubrication charts.

(j) SPEECH.—Demonstrate mental alertness and clarity of speech.

(B) EXAMINATION SUBJECTS.

(a) MATHEMATICS.—Knowledge of the methods of solving simple algebraic equations.

(b) VECTORS.—Graphic resolution of vectors representing direction and speed into components in and across the line of sight.

(c) DIRECT CURRENT.—Knowledge of elementary D. C. electricity including definitions of common terms employed and the solution of simple problems employing Ohm's and Kirchoff's laws.

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(d) ALTERNATING CURRENT.—Knowledge of elementary A. C. electricity including dp.finit.iona of common terms.

(e) MEASURING INSTRUMENTS.—Knowledge of the proper use of electrical measuring instruments commonly employed aboard own ship.

(f) CIRCUITS.—Circuit and cable markings and the procedure for locating breaks, grounds, and bad insulation.

(g) MECHANICAL AND ELECTRICAL UNITS.—Standard mechanical and electrical units described in current Bureau of Ordnance publications.

(h) SYMBOLS.—Knowledge of the basic fire control symbols described in current Bureau of Ordnance publications.

(i) EQUIPMENT.—Knowledge of the locations and uses of the fire control equipment on board own ship.

(j) OPTICAL INSTRUMENTS.—Knowledge of the uses of fire control optics—maintenance, adjustment, and precautions in handling.

(k) MAINTENANCE.—Care of electrical equipment on which stationed.

(1) SAFETY PRECAUTIONS.—Thorough knowledge of safety precautions, and action to be taken in case of electric shock.

(m) D-5203.

(2) FIRE CONTROLMAN, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) FIRE CONTROL TESTS AND INSPECTIONS—Demonstrate ability to conduct all routine fire control tests and inspections required for his battery, using such special tools and test equipment as required.

(b) SYNCHRO-TRANSMISSION SYSTEM.—Demonstrate ability to test and correct defects in a synchro-transmission system.

(c) TROUBLE SHOOTING.—Demonstrate ability to analyze results of tests and checks on equipment to which assigned and ability to make necessary adjustments and settings.

(d) DRAWINGS AND DIAGRAMS.—Demonstrate ability to interpret a mechanical drawing, schematic diagram, and a wiring diagram.

(e) RECORDS.—Demonstrate ability to maintain a fire control log and a machinery history.

(f) JOB ORDERS.—Demonstrate ability to prepare job orders required for fire control equipment overhaul.

(g) D-5205.08 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) PLANE GEOMETRY.—Plane geometry including the axioms, propositions governing parallel lines, right triangles, and intersecting planes.

(b) TRIGONOMETRIC FUNCTIONS.—The common trigonometric functions and mathematical resolution of vectors.

(c) FIRE CONTROL EQUIPMENT.—Operation and adjustments of the power drives, follow-up mechanisms, and indicator regulators of own battery.

(d) ROLLER PATH DATA.—Understand how to plot roller path data using both radial (60° or 180° method) and rectangular coordinates.

(e) ELEMENTS OF FIRE CONTROL PROBLEM.—Diagram, using the conventional symbols, the elements of the fire control problem as solved in the computer of own battery.

(f) POWER TUBE CIRCUITS.—Familiarity with circuits employing vacuum and gas filled power tubes as used in remote control stable element, stable vertical, and gyro compass systems.

(g) D-5205.08 (1) (B).

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(3) FIRE CONTROLMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) FIRE CONTROL TELEPHONE SWITCHBOARDS.—Demonstrate ability to operate fire control power, and fire control telephone switchboards.

(b) FIRE CONTROL COMMUNICATION CIRCUITS.—Demonstrate familiarity with functions of all fire control transmission and communication circuits and orders transmitted.

(c) TROUBLE SHOOTING.—Demonstrate ability to analyze tests and checks, and to make adjustments and settings.

(d) ALIGNMENT CHECK.—Demonstrate ability to conduct alignment check for battery, and determine corrections and settings required.

(e) FIRE CONTROL.—Demonstrate ability to station and instruct all fire control personnel of battery and to control the station to which assigned for general quarters, and demonstrate knowledge of fire control and spotting doctrines.

(f) MAINTENANCE.—Demonstrate ability to direct and supervise maintenance of fire control equipment in own battery, including records.

(g) D-5205.08 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) FIRE CONTROL PROBLEMS.—Surface and anti-aircraft fire control problems, including diagrams and explanations of all components.

(b) FIRE CONTROL EQUIPMENT.—Operation, adjustments, and periodic checks of all fire control equipment in battery to which assigned.

(c) EQUIPAGE.—Procedures for obtaining spare parts for fire control equipment. Knowledge of allowance lists.

(d) D-5205.08 (2) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Be a graduate of an advanced fire control school. (This requirement may be waived by the Bureau of Naval Personnel or by the commanding officer in accordance with current instructions.)

(4) CHIEF FIRE CONTROLMAN.

(A) PRACTICAL FACTORS.

(a) JUNIOR FIRE CONTROL DIVISION OFFICER.—Demonstrate ability to function as a junior fire control division officer including stationing and instructing of all fire control personnel.

(b) ALIGNMENT OF BATTERIES.—Demonstrate ability to align all batteries and determine corrections and settings required.

(c) CONTROL.—Demonstrate ability to take charge of any fire control battle station, and demonstrate knowledge of fire control procedures and doctrines.

(d) MAINTENANCE.—Demonstrate ability to supervise the maintenance of all fire control equipment aboard own ship.

(e) D-5205.08 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) INITIAL BALLISTIC.—Compute initial ballistic for a surface fire control problem.

(b) ANTIAIRCRAFT BARRAGE.—Determine fuze, sight angle, and sight deflection for a fixed antiaircraft barrage.

(c) ROLLER PATH DATA.—Knowledge of plotting roller path data using rectangular coordinates, 180 degree radial diagram, and 60 degree radial diagram methods.

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(d) TILT CORRECTORS.—Knowledge of errors introduced by deck tilt and trunnion tilt and how compensated.

(e) BATTERY ALIGNMENT IN DRY DOCK.—Detailed knowledge of procedure to be followed in aligning a battery while ship is in dry dock, including special work required during initial installation.

(f) REPORTS AND FORMS.—Reports to be made by the Gunnery Department and familiarity with the forms used.

(g) SAFETY PRECAUTIONS.—Thorough and detailed knowledge of pertinent safety precautions covered in U. S. Navy Regulations, Chapter 24, Section 2.

(h) SOURCES OF INFORMATION.—Current sources of information regarding fire control and other ordnance equipment.

(i) D-5205.08 (3) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Must be a graduate of an advanced fire control school. (This requirement may be waived by the Bureau of Naval Personnel or by the commanding officer in accordance with current instructions.)

D-5205.081. Fire Controlmen O (Operators).

Note: Candidates for the FCO rating must be mentally alert, must articulate clearly without voice impediments, and must have 20/20 uncorrected visual acuity.

In addition, to qualify as a rangefinder operator, under (1) (A) (c) (ii), candidates must be under thirty (30) years of age and must have interpupillary distance of not less than 60 or greater than 70 millimeters.

(1) FIRE CONTROLMAN O, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) DIRECTOR.—Demonstrate ability to function as director operator in own battery.

(c) RANGING.—Qualify in one (1) of the following:

(i) Fire Control Radar.—Demonstrate ability to obtain accurate ranges with a fire control radar and to make necessary operating adjustments, including calibration.

(ii) Rangefinder.—Demonstrate ability to operate a rangefinder under all conditions, including darkness, or low visibility, to make all operating adjustments, and to maintain necessary rangefinder records.

(d) TARGET ANGLE AND TARGET SPEED.—Demonstrate ability in estimation of target angle and speed.

(e) LEAD COMPUTING SIGHT.—Demonstrate ability to operate a lead computing sight.

(f) SPOTTING.—If stationed as a spotter, demonstrate proficiency in spotting.

(g) RECOGNITION.—Demonstrate ability to recognize with speed and accuracy friendly and enemy planes and ships likely to be encountered in areas in which operating. Demonstrate thorough familiarity with the technique of night lookout scanning.

(h) TELEPHONE TALKER.—Demonstrate proficiency as a fire control telephone talker.

(i) LUBRICATION.—Demonstrate ability to lubricate properly the equipment to which assigned, in accordance with lubrication charts.

(B) EXAMINATION SUBJECTS.

(a) FIRE CONTROL ORGANIZATION.—Understand the organization and functions of the fire control party of own battery, including all members of director crew, and rangefinder operator.

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(b) FIRE CONTROL TERMS AND DEFINITIONS.—Possess a working knowledge of the basic fire control definitions, terms, and commands.

(c) RANGEKEEPER OR COMPUTER.—Know the function and operation of rangekeeper or computer of own battery.

(d) TARGET MOVEMENT.—Understand how target movement affects the fire control problem.

(e) SPOTTING DOCTRINE.—Thorough knowledge of current spotting doctrine.

(f) RANGEFINDER.—Know the effect of light and background on ranging accuracy. Understand in general the construction of a rangefinder.

(g) OPTICAL INSTRUMENTS.—Know the prescribed precautions that pertain to optical equipment in own ship.

(h) SAFETY PRECAUTIONS.—Thorough knowledge of pertinent safety precautions applicable to own station.

(i) D-5203.

(2) FIRE CONTROLMAN O, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) DIRECTOR.—Demonstrate ability to operate and control any director in own ship.

(b) RANGING.—Qualify in one (1) of the following:

(i) Fire Control Radar.—Demonstrate ability to operate and stand watch at any fire control radar in own ship.

(ii) Rangefinder.—Demonstrate ability to operate with proficiency any rangefinder in own ship.

(c) RANGEKEEPER OR COMPUTER.—Demonstrate ability to function as a rangekeeper or computer operator.

(d) OPTICS.—Demonstrate ability to conduct shipboard optical inspection, adjustments, and upkeep not requiring services of a special artificer O. Demonstrate ability to gas rangefinders or other optical equipment:

(e) BATTLE TELEPHONES.—Demonstrate:

(i) thorough knowledge of fire control telephone circuits;

(ii) ability to train telephone talkers; and

(iii) ability to operate a fire control telephone switchboard.

(f) RECORDS.—Demonstrate ability to maintain records of operating tests of fire control equipment and to prepare work requests for the overhaul of such equipment.

(g) D-5205.081 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) FIRE CONTROL ORGANIZATION.—Possess a working knowledge of fire control organization and functions.

(b) DIRECTORS.—Knowledge of functions performed by operators of any director in own ship.

(c) RANGEKEEPER OR COMPUTER.—Knowledge of functions performed by operators of any rangekeeper or computer in own ship.

(d) RADAR.—Basic knowledge of the general principles of radar and the functions of all fire control and search radars in own ship.

(e) FIRE CONTROL TESTS.—Knowledge of operational tests and checks of battery to which assigned.

(f) SPOTTING DIAGRAMS.—Knowledge of use of spotting diagrams.

(g) PLOTTING.—Understand the operation of graphic plotter. Be familiar with the plotting problem.

(h) FIRE CONTROL COMMUNICATIONS.—Knowledge of all fire control communication circuits and standard fire control orders.

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(i) OPTICAL NOMENCLATURE.—Know the names and functions of the principal parts of common fire control optics.

(j) D-5205.081 (1) (B).

(3) FIRE CONTROLMAN O, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to station and train all members of the fire control party in battery to which assigned.

(b) RANGEKEEPER OR COMPUTER.—Demonstrate ability to function with skill at any rangekeeper or computer in own ship and to take charge of a rangekeeper or computer station.

(c) FIRE CONTROL SWITCHBOARDS.—Demonstrate ability to operate all fire control switchboards.

(d) DOCTRINES.—Demonstrate proficiency in the use of current fire control and spotting doctrines.

(e) BATTERY ALIGNMENT.—Demonstrate ability to conduct alignment check of battery to which assigned.

(f) FIRE CONTROL TESTS.—Demonstrate ability to conduct operational tests and checks of all fire control equipment in battery to which assigned.

(g) LEAD COMPUTING SIGHTS.—Demonstrate ability to boresight, test, and lubricate lead computing sights.

(h) GRAPHIC PLOTTER.—Demonstrate ability to function as graphic plotter operator.

(1) D-5205.081 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) FIRE CONTROL SYSTEM.—Thorough understanding of the fire control system in battery to which assigned, and the function of each of its units.

(b) RADAR.—Know the capabilities and limitations of search and fire control radars.

(c) COMBAT INFORMATION CENTER.—General knowledge of the functions of the CIC and its relationship to fixe control.

(d) BOMBARDMENT PROCEDURES.—Knowledge of current bombardment procedures.

(e) LEAD COMPUTING SIGHTS.—Know the possible lead computing sight casualties, their causes, and remedies.

(f) D-5205.081 (2) (B).

(4) CHIEF FIRE CONTROLMAN O.

(A) PRACTICAL FACTORS.

(a) ADMINISTRATION.—Demonstrate administrative ability in the supervision and training of fire control personnel to insure adequate operation, testing, maintenance, cleanliness, lubrication of equipment, and maintenance of records in the fire control system.

(b) FIRE CONTROL.—Demonstrate ability to take charge of a battery control station or plotting room.

(c) SPOTTING.—If so stationed, demonstrate ability to function as a battery spotter.

(d) RECOGNITION.—Demonstrate familiarity with standard methods of, and ability to assist in, recognition training.

(e) D-5205.081 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) DOCTRINES.—Thorough knowledge of current fire control and spotting doctrines.

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(b) FIRE CONTROL SYSTEMS.—General knowledge of operating procedure and functions of standard fire control systems and their main units.

(c) RECOGNITION.—Thorough knowledge of recognition training, including the principles and function of all recognition training aids.

(d) RECORDS AND REPORTS.—Familiarity with records and reports required by Gunnery Department for operation and maintenance of fire control equipment.

(e) SAFETY PRECAUTIONS.—Thorough and detailed knowledge of safety precautions applicable to fire control stations.

(f) D-5205.081 (3) (B).

D-5205.082. Fire Controlmen S (Submarine).

(1) FIRE CONTROLMAN S, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2).

(b) FIRE CONTROL STATION.—Demonstrate ability to man a fire control station which should include torpedo data computer, angle solver, and gyro setting indicator regulator.

(c) FIRE CONTROL INSTRUMENTS.—Demonstrate ability to energize and to secure all fire control instruments in own ship.

(d) TORPEDO DATA COMPUTER.—Demonstrate ability to operate torpedo data computer, and know how to make changes due to differences in the tactical characteristics of various Marks of torpedoes.

(e) ANGLE SOLVER.—Demonstrate ability to use angle solver.

(f) ZERO POSITION.—Demonstrate ability to check and set the zero position of synchro-generators and synchro-motors.

(g) FIRE CONTROL TELEPHONES.—Demonstrate ability to repair fire control telephones.

(h) HAND TOOLS.—Demonstrate proficiency in the proper use of hand tools.

(i) GUNS.—Demonstrate ability to prepare a gun for boresighting and to tram a gun.

(j) TORPEDO TUBES.—Demonstrate ability to prepare a torpedo tube for firing.

(B) EXAMINATION SUBJECTS.

(a) MATHEMATICS.—Knowledge of all arithmetical processes up to and including ratio and proportion. Knowledge of the methods of solving simple algebraic equations.

(b) VECTORS.—Graphic resolution of vectors representing direction and speed into components, in and across the line of sight.

(c) DIRECT CURRENT.—Knowledge of elementary D. C. electricity including definitions of common terms employed and the solution of simple problems employing Ohm's and Kirchoff's laws.

(d) ALTERNATING CURRENT.—Knowledge of elementary A. C. electricity including definitions of common terms employed. Understand the effects of inductive reactance and capacitive reactance in a circuit.

(e) MEASURING INSTRUMENTS.—Knowledge of the proper use of electrical measuring instruments commonly employed aboard ship.

(f) CIRCUITS.—Knowledge of circuit and cable markings and the procedure for locating breaks, grounds, and bad insulation.

(g) MECHANICAL AND ELECTRICAL UNITS:—Knowledge of standard mechanical and electrical units described in current Bureau of Ordnance publications.

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(h) FIRE CONTROL SYMBOLS.—Knowledge of the basic fire control symbols described in current Bureau of Ordnance publications.

(i) FIRE CONTROL EQUIPMENT.—Knowledge of the locations, uses, and proper maintenance procedure for fire control instruments aboard a submarine.

(j) FIRE CONTROL OPTICAL INSTRUMENTS.—Knowledge of the uses of optical instruments aboard a submarine, the precautions to be observed in handling and adjusting optics, and the proper maintenance routine.

(k) TORPEDOES.—Knowledge of factors, such as reach, radius of turn, advance; transfer, initial speed and average speed, involved in the tactical characteristics of torpedoes.

(1) SOUND GEAR AND RADAR.—Elementary knowledge of sound gear and radar outputs.

(m) D-5203.

(2) FIRE CONTROLMAN S, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) FIRE CONTROL TESTS AND INSPECTIONS.—Demonstrate ability to conduct all routine fire control tests and inspections required for installation to which assigned.

(b) SYNCHRO TRANSMISSION SYSTEM.—Demonstrate ability to test and correct defects in a synchro transmission system.

(c) TROUBLE SHOOTING.—Demonstrate ability to analyze results of tests and checks on all fire control instruments on board own ship, and ability to make necessary adjustments and settings.

(d) TORPEDO DATA COMPUTER.-—Demonstrate ability to instruct others in the use of torpedo data computer.

(e) SPECIAL TOOLS AND EQUIPMENT.—Demonstrate ability in the use of special tools and test equipment normally employed in the service of lire control equipment.

(f) MAINTENANCE OF CIRCUITS.—Demonstrate ability to maintain fire control and communication circuits.

(g) DRAWINGS AND DIAGRAMS.—Demonstrate ability to interpret a mechanical drawing, schematic diagram, and a wiring diagram.

(h) EQUIPMENT RECORD.—Demonstrate ability to maintain a satisfactory equipment record of the following: tests, adjustments, repairs, overhaul, and lubrication.

(i) JOB ORDERS.—Demonstrate ability to prepare job orders required for fire control overhaul.

(j) SOUND GEAR AND RADAR.—Demonstrate knowledge of operation of sound gear and radar aboard own ship. Demonstrate ability to make simple sound and radar interpretations.

(k) TORPEDOES.—Elementary knowledge of torpedoes and torpedo exploder mechanisms.

(l) D-5205.082 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) PLANE GEOMETRY.—Knowledge of plane geometry including the axioms, propositions governing parallel lines, right triangles, and intersecting planes.

(b) TRIGONOMETRIC FUNCTIONS.—Knowledge of the six common trigonometric functions and ability to resolve mathematically vectors representing direction and speed into components in and across the line of sight.

(c) FIRE CONTROL EQUIPMENT.—Understand operation and adjustments of follow-up mechanisms and indicator regulators of gyro angle setters.

(d) ELEMENTS OF TORPEDO FIRE CONTROL PROBLEM—Using con-

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ventional symbols, diagram the elements of the submerged torpedo problem as solved by the torpedo data computer installed in own ship.

(e) D-5205.082 (1) (B).

(3) FIRE CONTROLMAN S, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SWITCHBOARDS.—Demonstrate ability to operate fire control power and fire control telephone switchboards.

(b) COMMUNICATION CIRCUITS.—Demonstrate familiarity with the routing of fire control transmissions and communication circuits in own battery.

(c) MAINTENANCE AND OVERHAUL.—Demonstrate ability in the maintenance and overhaul of all fire control equipment in own ship.

(d) OPTICAL INSTRUMENTS.—Demonstrate ability to conduct an inspection of all optical instruments on board.

(e) STATION CONTROL.—Demonstrate ability to control the station to which assigned for general quarters.

(f) ALIGNMENT CHECK.—Demonstrate ability to conduct alignment check for submarine fire control system, and determine corrections and settings required.

(g) GYRO COMPASS.—Demonstrate ability to operate gyro compass system.

(h) D-5205.082 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) FIRE CONTROL PROBLEMS.—Knowledge of both the surface and torpedo fire control problems, together with ability to diagram and explain the components thereof.

(b) FIRE CONTROL EQUIPMENT.—Understand the operation, adjustments, and periodic checks of all fire control equipment in own ship.

(c) EQUIPAGE.—Knowledge of current accounting methods for ordnance stores and spare parts and the procedure for obtaining replacements.

(d) PERISCOPES.—Knowledge of the care and operation of periscopes.

(e) D-5205.082 (2) (B).

(4) CHIEF FIRE CONTROLMAN S.

(A) PRACTICAL FACTORS.

(a) STATION CONTROL.—Demonstrate ability to control any station manned by torpedo officer.

(b) MAINTENANCE.—Demonstrate ability to supervise the maintenance and overhaul of fire control equipment.

(c) COMMUNICATION CIRCUITS.—Demonstrate familiarity with the routing of all fire control transmission and communication circuits of own ship.

(d) PERISCOPE ALIGNMENT CHECK.—Demonstrate ability to make alignment check of periscope.

(e) D-5205.082 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) INITIAL BALLISTIC.—Compute initial ballistic for a surface fire control problem.

(b) ANTIAIRCRAFT BARRAGE.—Determine fuze, sight angle, and sight deflection for a fixed antiaircraft barrage.

(c) ROLLER PATH DATA.—Knowledge of plotting roller path data using rectangular coordinates, 180 degree radial diagram, and 60 degree radial diagram methods.

(d) POWER TUBE CIRCUITS.—Be familiar with circuits employing vacuum and gas filled power tubes as used in gyro compass systems.

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(e) ALIGNMENT OF FIRE CONTROL EQUIPMENT.—Detailed knowledge of procedure to be followed in aligning all fire control equipment installed on

submarine, on initial installation, or after major overhaul.

(f) D-5205.082 (3) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Must be a graduate of an advanced fire control school. (This requirement may be waived by the Bureau of Naval Personnel or by the commanding officer in accordance with current instructions.)

D-5205. ARTIFICER BRANCH.

D-5206.01. Radiomen.

(1) RADIOMAN, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) OPERATING ADJUSTMENTS.—Start, stop, regulate, and make necessary operating adjustments on the naval radio transmitting and receiving equipment in own ship or station and know the safety precautions involved. This includes the shifting of frequencies within the time limit and degree of accuracy set as a standard within the fleet or force to which attached. When specifically assigned, perform the adjustments listed above on Loran and Countermeasures equipment.

(c) WATCH STANDING.—Qualify as a watch stander on an 18 w.p.m, fleet circuit and be able to copy standard Fox method broadcasts, keeping required logs.

(d) RADIO DIRECTION FINDER.—Obtain accurate bearings with radio direction finder in own ship or station.

(e) LORAN AND COUNTERMEASURES—When specifically assigned, demonstrate ability to operate Loran and Countermeasures equipment in own ship or station.

(f) ANTENNAS.—Demonstrate ability to rig emergency radio receiving and transmitting antennas.

(g) FIRST AID.—Demonstrate a thorough knowledge of first aid with emphasis upon treatment for personnel suffering from electric shock and burns.

(B) EXAMINATION SUBJECTS.

(a) TRANSMITTING AND RECEIVING.—Transmit and receive according to the standard tests given below.

(b) TYPEWRITING.—Qualify in touch typewriting, with speed and accuracy sufficient for the successful completion of the receiving test given below.

(c) CRYPTOGRAPHIC AIDS.—Demonstrate ability to use current cryptographic aids required for circuit use by radiomen in own ship or station.

(d) BATTERIES.—Familiarity with the types, uses, care, and maintenance of batteries used in naval radio equipment.

(e) OPERATING PROCEDURE.—Working knowledge of naval radio operating procedure as set forth in Communication Instructions.

(f) DISTRESS COMMUNICATION.—Know the procedure for communicating with a ship or aircraft in distress.

(g) INTERNATIONAL PROCEDURE.—General knowledge of international radio procedure.

(h) THEORY.—Elementary knowledge of wave propagation, electron theory, vacuum tubes, and magnetism.

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(i) FREQUENCIES.—General knowledge of frequencies assigned for general naval use.

(j) SAFETY PRECAUTIONS.—Know the safety precautions to be observed with radio and related equipments in own ship or station.

(k) SECURITY.—Know the principles of, and requirements for, maintenance of communication security.

(1) D-5203.

(2) RADIOMAN, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate ability to stand a watch on any fleet circuit.

(b) EMERGENCY REPAIRS.—Perform simple emergency radio and electrical repairs.

(c) TRAFFIC.—Demonstrate ability to route traffic to, from, and within own ship or station.

(d) RADIO OPERATING PROCEDURE.—Demonstrate detailed knowledge of naval radio operating procedure.

(e) NAVIGATION.—Demonstrate ability to take bearings and plot positions, using radio direction finder, and, when so assigned, Loran.

(f) D-5206.01 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) TRANSMITTING AND RECEIVING.—Transmit and receive according to the standard tests given below.

(b) OPERATION OF RADIO AND ASSOCIATED EQUIPMENTS.—Have a good working knowledge of the operation, adjustment, and care of the radio and radio direction finder (including HFDF) equipment in own ship or station. When so assigned, possess similar knowledge of Loran and Countermeasures equipment.

(c) COMMUNICATION INSTRUCTIONS.—Possess a detailed knowledge of operating procedure, communication instructions, and naval organization as set forth in U. S. Navy Regulations, Communication Instructions, and current operating instructions.

(d) GENERAL OPERATING PROCEDURES—Working knowledge of commercial traffic instructions and international procedure. Know the regulations regarding communications as prescribed for the safety of life at sea, and know how to communicate by radio with a merchant vessel at sea.

(e) PUBLICATIONS.—List and know how to use the major publications and manuals pertaining to naval, commercial, and international procedure.

(f) ANTENNAS.—General knowledge of the characteristics of the various types of antennas used on board ship.

(g) WATCH STANDING.—Know how to take charge of a watch, handle traffic as a supervisor, and act as a monitor engineer for several receiving equipments.

(h) ELECTRICITY.—General knowledge of A. C. and D. C.

(i) FREQUENCIES.—Thorough knowledge of frequencies assigned for general naval use.

(j) D-5206.01 (1) (B).

(3) RADIOMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate ability to take charge of a watch, act as supervisor, and perform duties of senior radioman on board.

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(b) ADJUSTMENTS AND SIMPLE REPAIRS.—Demonstrate ability to adjust, calibrate, and make simple repairs for the radio, radio direction finder, and, if so assigned, for Loran and Countermeasures equipment.

(c) SUPERVISION AND TRAINING.—Demonstrate ability to supervise the work and training of other radiomen.

(d) D-5206.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) TRANSMITTING AND RECEIVING.—Transmit and receive according to the standard tests given below.

(b) SUPERVISION.—Know how to take charge of a radio station aboard ship or ashore.

(c) ELECTRICITY.—Be able to solve simple problems in A. C. and D. C.

(d) EMERGENCY AND PORTABLE EQUIPMENTS.—Have a good working knowledge of the routine care, upkeep, and operation of emergency and portable equipments, including internal combustion engines.

(e) DOCTRINE.—Knowledge of current fleet radio doctrine.

(f) WIRING DIAGRAMS.—Be able to read wiring diagrams and blueprints. Know how to interpret radio symbols.

(g) COMMERCIAL PRACTICES.—Have a good working knowledge of commercial accounting and abstracting as used by the Navy.

(h) VISUAL SIGNALING.—Have elementary knowledge of procedure for visual signaling.

(i) THEORY.—Elementary knowledge of radio circuits, and A. C.-D. C. motors and generators.

(j) D-5206.01 (2) (B).

(4) CHIEF RADIOMAN.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to organize, direct, and supervise a radio station aboard ship or ashore.

(b) OPERATION.—Demonstrate ability to operate, calibrate, and adjust all standard naval radio, radio direction finder, and emergency and portable radio equipment aboard own ship or station, including Loran and Countermeasures if so assigned.

(c) MOTORS AND GENERATORS.—Demonstrate thorough working knowledge of the operation and care of A. C. and D. C. motors and generators.

(d) D-5206.01 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) TRANSMITTING AND RECEIVING.—Transmit and receive according to the standard tests given below.

(b) RADIO AND COMMUNICATION OFFICERS.—Know the duties of the radio and communications officers aboard own ship or station.

(c) ANTENNAS.—Be familiar with the design of all types of antennas in general use for radio communications.

(d) VACUUM TUBES.—Be familiar with the theory, construction, and use of the most frequently used naval types of vacuum tubes.

(e) RADIO DIRECTION FINDERS.—General knowledge of the installation, correction, and compensation of standard types of naval radio direction finders.

(f) WAVE PROPAGATION.—Be familiar with the theory of radio wave propagation, including knowledge of skip distances, sky wave and ground wave effects, the ionosphere, the sunspot cycle and its effect on wave propagation.

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(g) SONAR EQUIPMENTS.—Have a good working knowledge of all standard naval types of sonar equipments.

(h) COMMUNICATION SYSTEMS.—Be familiar with the organization, functions, and facilities of the Army, Coast Guard, and United States commercial communication systems and the Federal Communications Commission.

(i) NAVIGATION.—Possess an elementary knowledge of navigation, including knowledge of charts, dead reckoning, points of the compass, compass errors, and method of determining position by direction finder bearings and Loran if so assigned.

(j) OPERATING PROCEDURE.—Thorough knowledge of naval radio operating procedure, and current doctrine pertaining thereto.

(k) D-5206.01 (3) (B).

(5) RADIO OPERATING TESTS.—(Time limit—8 minutes each for transmitting and receiving tests.)

(A) RADIOMAN, THIRD CLASS.—Transmit a file of 3 messages and receive a file of 3 messages in Class A form, each file containing a total of 500 characters. The text of two messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(B) RADIOMAN, SECOND CLASS.—Transmit a file of 4 messages and receive a file of 4 messages in Class A form, each file containing a total of 600 characters. The text of three messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(C) RADIOMEN, FIRST CLASS AND CHIEF.—Transmit a file of 5 messages and receive a file of 5 messages in Class A form, each file containing a total of 700 characters. The text of four messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-Ietter code in groups of 5 characters.

(6) STANDARD TEST PROCEDURE.—The following standard procedure shall be used in giving tests under paragraph (5) above:

(A) MESSAGES.—Messages shall be approximately the same length, heading containing about 30% and the text about 70% of the total number of characters. A total of 5 errors (incorrect or omitted characters) will be permitted in transmitting in any complete test. One complete rehearsal immediately preceding the official test is permissible. The messages used for the official test must differ from those used for the rehearsal, and must be unknown to the applicant before the test starts.

(B) RECEIVING.—Receiving shall be done on a typewriter, either standard or telegraphic.

(C) TIME LIMITS.—Time limits for the complete tests shall include "servicing" each message by endorsing thereon the time of transmission or reception, circuit used, and the operator's sign. All errors must be corrected.

D-5206.02. Radio Technicians.

(1) RADIO TECHNICIAN, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) EQUIPMENT ADJUSTMENTS.—Start, stop, regulate, and make necessary operating adjustments on the radio transmitting, radio receiving, radio direction finder (including HFDF), sonar, radar, frequency measuring, and vacuum tube testing equipment in own ship or station, and know the safety

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precautions involved. This includes the shifting of frequencies within the time limit and degree of accuracy set as standard within the fleet or force to which attached. When specifically assigned, perform the adjustments listed above on Loran and Countermeasures equipment.

(c). CIRCUIT DIAGRAMS.—Demonstrate ability to draw and to interpret schematic circuit diagrams of simple electronic circuits.

(d) IDENTIFICATION OF COMPONENTS.—Demonstrate ability to locate and identify component parts of an actual piece of electronic equipment by reference to the associated circuit diagram.

(e) TOOLS.—Demonstrate ability to handle properly ordinary tools used in routine electronic service work.

(f) SIMPLE REPAIRS.—Demonstrate ability to make simple repairs to standard shipboard electronic equipment under qualified supervision.

(g) REMOTE CONTROL SYSTEMS.—Demonstrate a working knowledge of the electric and electronic remote control systems used with equipment in own ship or station.

(h) POWER SUPPLY SYSTEMS.—Demonstrate a working knowledge of the power supply systems used with the electronic equipment in own ship or station.

(i) FIRST AID.—Demonstrate a thorough knowledge of first aid with emphasis upon treatment for personnel suffering from electric shock and bums.

(B) EXAMINATION SUBJECTS.

(a) BATTERIES.—Have a working knowledge of the types, uses, care, and maintenance of batteries used in naval electronic equipment.

(b) OHM'S LAW.—Have a working knowledge of Ohm's law and be able to apply it in the solution of elementary problems.

(c) ELECTRONIC EQUIPMENT.—Elementary knowledge of the purpose and use of electronic equipment used in own ship or station.

(d) CATHODE RAY OSCILLOSCOPE.—Elementary knowledge of the theory and operation of the cathode ray oscilloscope.

(e) TEST EQUIPMENT.—Working knowledge of standard naval test equipment used in servicing electronic and related equipment.

(f) SAFETY PRECAUTIONS.—Know the safety precautions to be observed with electronic equipment in own ship or station,

(g) D-5203.

(2) RADIO TECHNICIAN, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) REPAIRS.—Demonstrate ability to perform routine electronic and electrical repairs to equipment in own ship or station.

(b) TOOLS AND TEST EQUIPMENT.—Demonstrate ability to handle and use proficiently all tools and test equipment normally used in electronic maintenance repair work in own ship or station.

(c) MEASUREMENTS.—Demonstrate ability to make receiver sensitivity and selectivity measurements.

(d) CALIBRATION.—Demonstrate ability to calibrate and check range accuracy of radar equipment.

(e) DIAGRAMS.—Demonstrate ability to interpret complicated wiring and circuit diagrams.

(f) TROUBLE SHOOTING.—Demonstrate familiarity with standard methods of trouble analysis.

(g) TRANSMISSION LINES.—Be able to locate leaks and effect repairs on pressure type transmission lines.

(h) D-5206.02 (1) (A).

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(B) EXAMINATION SUBJECTS.

(a) ELECTRONIC EQUIPMENT.—Have a good working knowledge of the operation, adjustment, and care of all electronic equipment in own ship or station.

(b) ALTERNATING CURRENT.—Basic knowledge of A. C. Be able to solve practical A. C. problems.

(c) RADAR AND SONAR EQUIPMENT.—Possess a general knowledge of the theory and operation of radar and sonar equipment installed in own ship or station.

(d) OSCILLOSCOPE TESTING METHODS.—Have a good working knowledge of the theory and operation of the cathode ray oscilloscope as used in the servicing and testing of all electronic equipment.

(e) MOTORS AND GENERATORS.—Have a good working knowledge of the theory of operation, care, and maintenance of motors and generators used in connection with electronic equipment in own ship or station.

(f) ANTENNAS.—General knowledge of the characteristics of various types of antennas used in own ship or station.

(g) REGULATIONS.—Be familiar with Chapter 31, Manual of Engineering Instructions, pertaining to the care, unkeep, and repair of radio equipment, and similar chapters in the Bureau of Ships Manual, pertaining to other electronic equipment.

(h) INSTRUCTION BOOKS.—Explain how standard instruction books and manuals furnished with electronic equipment installed in own ship or station may be used to facilitate equipment repairs and maintenance.

(i) RECORDS.—Be familiar with and be able to prepare electronic equipment records.

(j) REPORTS.—Be familiar with and be able to prepare vacuum tube and component parts failure reports.

(k) REPLACEMENT PARTS.—Know the general procedure for requisitioning replacement parts.

(l) D-5206.02 (1) (B).

(3) RADIO TECHNICIAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise the work and training of personnel maintaining and repairing electronic equipment.

(b) ADJUSTMENTS.—Demonstrate ability to tune properly, calibrate, and make routine maintenance adjustments to all electronic equipment in own ship or station.

(c) TROUBLE SHOOTING AND REPAIRS.—Demonstrate ability to locate trouble and make necessary repairs to all standard naval types of electronic equipment.

(d) MATERIAL UPKEEP.—Demonstrate ability to take charge of and direct material upkeep on all electronic equipment in use in own ship or station.

(e) STORES AND SPARE PARTS.—Demonstrate thorough familiarity with naval methods of accounting for stores and spare parts and with the method of obtaining replacements.

(f) FIRE CONTROL RADAR.—Demonstrate ability to calibrate fire control radar in range and alignment with the optics in train and elevation.

(g) D-5206.02 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) ALTERNATING CURRENT.—Be thoroughly familiar with the principles

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of alternating current and be able to solve alternating current problems including series and parallel circuits.

(b) A. C. AND D. C. EQUIPMENT.—Be thoroughly familiar with the theory and operation of A. C. and D. C. machinery, transformers, motors, generators, and control circuits employed therewith, in current naval use.

(c) EMERGENCY AND PORTABLE EQUIPMENT.—Have a good working knowledge of the care, upkeep, and operation of emergency and portable equipment, including internal combustion engines.

(d) ELECTRONIC THEORY.—Good working knowledge of vacuum tube theory and electronic circuits, including a thorough understanding of resistance, capacity, and inductance as applied to electronic circuits. Have a thorough knowledge of the theory and use of the cathode ray oscilloscope.

(e) TROUBLE SHOOTING.—Be able to diagnose troubles in electronic circuits quickly and efficiently by means of circuit analysis and intelligent use of standard service equipment.

(f) ULTRA HIGH FREQUENCY CIRCUITS.—Have a good working knowledge of ultra high frequency circuits and wave propagation.

(g) REMOTE CONTROL SYSTEMS.—Have a working knowledge of remote control systems, including selsyn, amplidyne, and thyratron systems.

(h) DIAGRAMS.—Be able to draw and interpret circuit and wiring diagrams of standard electronic equipment.

(i) D-5206.02 (2) (B).

(4) CHIEF RADIO TECHNICIAN.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to organize, direct, and supervise all personnel engaged in the maintenance and repair of electronic equipment.

(b) TRAINING.—Demonstrate ability to train other radio technicians in the installation, maintenance, and adjustment of new electronic equipment.

(c) FIRE CONTROL RADAR.—Demonstrate outstanding ability in the calibration and alignment of fire control radars to obtain peak performance.

(d) RECORDS AND REPORTS.—Demonstrate knowledge of allowance lists and the procedure prescribed for the acquisition and disposition of stores and spare parts, including the maintenance of necessary records and the preparation of required reports. Demonstrate ability to maintain records reflecting electronic equipment histories.

(e) D-5206.02 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) ELECTRONIC EQUIPMENT.—Have a thorough knowledge of all standard types of naval electronic equipment and know how to make all necessary repairs thereto.

(b) ANTENNAS.—Be familiar with the characteristics of all antennas and be able to construct emergency antennas, including feeders, coupling, and adjustment for optimum operation, with emphasis on ultra high frequency directional arrays, etc.

(c) WAVE PROPAGATION.—Be thoroughly familiar with the theory of radio wave propagation, with emphasis upon ultra high frequency propagation, and including knowledge of skip distances, sky wave and ground wave effects, the ionosphere, and the sunspot cycle and its effect upon wave propagation.

(d) TRANSMISSION LINES.—Have a good working knowledge of transmission lines and transmission line theory; know how to install and maintain transmission lines.

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(e) VACUUM TUBES.—Be thoroughly familiar with the theory, construction and use of the most frequently used types of vacuum tubes.

(f) RADIO DIRECTION FINDERS.—Know how to install correct, and compensate standard types of naval radio direction finders.

(g) D-5206.02 (3) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Must be a graduate of an Advanced Radio Material School approved by the Bureau of Naval Personnel. (The highly technical qualifications for radio technicians, covering the broad field of electronic equipment, make it inadvisable to waive the school requirement for advancement to chief.)

D-5206.03. Radarmen.

(1) RADARMAN, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) OPERATION.—Demonstrate ability to start, stop, and operate a Navy search type radar in own ship or station and know the safety precautions involved.

(c) RELATIVE MOTION.—Demonstrate familiarity with the concept of relative motion and with true and relative bearings and conversion of same.

(d) EQUIPMENT.—Demonstrate a knowledge of the location of all major units of a particular radar equipment, with proper nomenclature of same, including transmitter, receiver, indicator, antenna, power equipment, and associated communications.

(e) INTERPRETATION.—Demonstrate ability to furnish information essential to tracking under normal conditions.

(B) EXAMINATION SUBJECTS.

(a) PLOTTING.—Plotting of target ranges and bearings and determination of course and speed.

(b) EQUIPMENT.—Working knowledge of the use and care of a Navy search type radar equipment.

(c) PROCEDURE.—Knowledge of radar operating procedure.

(d) INTERFERENCE.—Recognize interference and the various types of interference that may be encountered on a particular type of search radar.

(e) IFF.—Elementary knowledge of the operation, use, and care of IFF equipment currently in effect.

(f) D-5203.

(2) RADARMAN, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) OPERATION.—Demonstrate ability to start, stop, and operate all Navy search type radars in own ship or station and know the safety precautions involved.

(b) RELATIVE MOTION.—Thorough knowledge of the concept of relative motion including true and relative bearings and conversion of same.

(c) EQUIPMENT.—Knowledge of the location of all major units of all radar equipments with proper nomenclature of same, including transmitters, receivers, indicators, antennas, power equipment, transmission lines, and associated communications.

(d) INTERPRETATION.—Demonstrate ability to identify various types of targets from their appearance on the radar screen.

(e) D-5206.03 (1) (A).

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(B) EXAMINATION SUBJECTS.

(a) PLOTTING.—Thorough and detailed knowledge of plotting of target ranges and bearings and determination of course and speed.

(b) EQUIPMENT.—Working knowledge of the use and care of all Navy search type radar equipments.

(c) PROCEDURE.—Thorough knowledge of radar operating procedure.

(d) INTERFERENCE.—Recognize interference and the various types of interference that may be encountered on all types of search radar.

(e) D-5206.03 (1) (B).

(3) RADARMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate outstanding ability to organize and supervise the work and training of other operators.

(b) OPERATION.—Demonstrate ability to calibrate and operate correctly all search types of radar equipment in own vessel or station. (Must have had at least six (6) months' operating experience as a radar operator.)

(c) PLOTTING.—Demonstrate ability to make and maintain radar plots, to use available plotting aids, and to coordinate information received from all sources.

(d) PRACTICAL PROBLEMS.—Demonstrate ability to operate all search types of radar, and in addition IFF in own vessel or station in the solution of practical problems of tactics and navigation, which include maneuvering, station keeping, fire control, aircraft and surface ship detection, and aircraft direction.

(e) D-5206.03 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) EQUIPMENT.—Knowledge of basic types of radar equipment and their performance capabilities and limitations.

(b) ANTIJAMMING.—Knowledge of antijamming techniques.

(c) COMMUNICATIONS.—Detailed knowledge of communication facilities and procedures associated with radar operations, including interior communications and voice radio. General familiarity with visual communications and code radio.

(d) TACTICS.—General knowledge of the tactical employment of the different types of radar in own ship or station against submarines, surface craft, and aircraft.

(e) FLEET RADAR DOCTRINES.—Knowledge of current fleet radar doctrines.

(f) COMBAT INFORMATION CENTER.—Working knowledge of the functions, organization, and operation of a combat information center and combat information team, including knowledge of use of sound gear on sound-equipped vessels, gyro-compass repeaters, dead-reckoning tracers, and other servo mechanisms associated with radar equipment and combat information center.

(g) FIRE CONTROL.—General familiarity with fundamental principles of fire control, including target designation.

(h) IDENTIFICATION EQUIPMENT.—The operation and use of IFF equipment in own ship or station.

(i) NAVIGATION AND PILOTING.—Familiarity with fundamental principles of navigation and piloting, including ability to use charts, and ability to dead reckon aircraft and surface vessels. Knowledge of the use of radar in navigation and piloting.

(j) D-5206.03 (2) (B).

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(4) CHIEF RADARMAN.

(A) PRACTICAL FACTORS.

(a) LEADERSHIP.—Demonstrate qualities of outstanding leadership.

(b) RADAR SYSTEM.—Demonstrate a thorough knowledge of an integrated radar system including the coordinated operation and use of air and surface search radar, fire control radar, IFF, CIC, remote PPI'S, target designation, DRT, and associated inter and intra ship communications systems.

(c) WATCH STANDING.—Demonstrate ability to take charge of a cruising watch in the CIC in own ship.

(d) AIRCRAFT INTERCEPTION.—Demonstrate ability to control aircraft to a successful daylight interception.

(e) D-5206.03 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) More thorough and detailed knowledge of subjects set forth in D-5206.03 (3) (B).

D-5206.04. Sonarmen.

Note: All sonarmen, when rated or advanced in rating, must have normal aural acuity at least over the general frequency range of from 500 to 3,500 cycles per second. They must not be tone deaf as evidenced by demonstration of differentiation between several musical notes. They must have at least 15/20 vision or 15/20 vision as corrected.

(1) SONARMAN, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) OPERATION.—Demonstrate ability to start, stop, tune, and operate efficiently standard shipboard sonar equipment, utilizing properly all operating controls under blacked-out conditions. Demonstrate ability to use bearing deviation indicator.

(c) RELATIVE MOTION.—Demonstrate familiarity with the concept of relative motion as applied to A/S attacks with sonar equipment. Demonstrate familiarity with true and relative bearings and conversion of same.

(d) SONAR EQUIPMENT.—Demonstrate a knowledge of the location, nomenclature, and function of the major components of a standard shipboard sonar equipment and know the safety precautions involved in their use.

(e) SONAR REPORTS.—Demonstrate ability to furnish the conning officer with sonar reports necessary for a good attack under normal conditions.

(f) OPERATING LOG.—Demonstrate ability to keep an accurate sonar operating log.

(g) PREVENTIVE MAINTENANCE,—Demonstrate ability to accomplish ordinary maintenance routines, such as greasing, cleaning, and making simple adjustments to sonar equipment, as distinguished from electronic repairs and maintenance. Demonstrate ability to recognize improper functioning of major components of sonar equipment.

(B) EXAMINATION SUBJECTS.

(a) PLOTTING.—Elementary knowledge of plotting of target ranges and bearings and determination of areas to search to regain contact. Be able to sketch or describe the general action taken by the conning officer in handling the ship to make an A/S attack based on the information obtained from sonar equipment.

(b) EQUIPMENT.—Working knowledge of the use, care, nomenclature, capacities, and limitations of a standard shipboard sonar equipment.

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(c) PROCEDURE.—Working knowledge of current fleet sonar operating procedure.

(d) PHYSICS OF SOUND.—Explain the elementary physics of sound as applied to the operation of sonar equipment.

(e) SOUND RANGE RECORDER.—Know the operation and function of the sound range recorder.

(f) D-5203.

(2) SONARMAN, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) OPERATION.—Demonstrate ability to start, stop, and operate sound range recorder under attack conditions.

(b) RELATIVE MOTION.—Thorough knowledge of the concept of relative motion including true and relative bearings and conversion of same.

(c) SONAR EQUIPMENT.—Demonstrate a knowledge of the location, nomenclature, and functioning of all components of a standard shipboard sonar equipment and know the safety precautions involved in their use.

(d) D-5206.04 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) PLOTTING.—Thorough knowledge of plotting of target ranges and bearings and determination of areas to search to regain contact. Be able to sketch or describe the general action taken by the conning officer in handling the ship to make an A/S attack based on the information obtained from sonar equipment.

(b) EQUIPMENT.—Thorough knowledge of the use, care, nomenclature, capacities, and limitations of a standard shipboard sonar equipment.

(c) PROCEDURE.—Thorough knowledge of current fleet sonar operating procedure.

(d) ATTACK AIDS.—Working knowledge of all standard attack aids.

(e) CODE.—Be able to send and receive on standard sonar equipment, international Morse code messages, plain language, at eight (8) words per minute.

(f) BATHYTHERMOGRAPH.—Understand the use of the bathythermograph and its application to sonar equipment.

(g) D-5206.04 (1) (B).

(3) SONARMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate outstanding ability to organize and supervise the work and training of other operators.

(b) OPERATION.—Demonstrate ability to operate correctly all types of sonar equipment and attack aids associated therewith. Demonstrate a working knowledge of the use of the bathythermograph.

(c) D-5206.04 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) COMBAT INFORMATION CENTER.—Working knowledge of the functions, organization, and operation of a combat information center and combat information team including knowledge of the use of radar on radar equipped ships.

(b) COMMUNICATIONS.—Detailed knowledge of interior communication facilities and procedures associated with sonar operations; general familiarity with visual communications and voice radio.

(c) CONNING.—Knowledge of conning procedures used for all types of A/S attacks.

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(d) FIRE CONTROL.—General familiarity with fundamental principles of fire control.

(e) NAVIGATION AND PILOTING.—Familiarity with fundamental principles of navigation and piloting, including ability to use charts.

(f) CODE.—Be able to send and receive on standard sonar equipment, international Morse code messages, plain language, at ten (10) words per minute.

(g) D-5206.04 (2) (B).

(4) CHIEF SONARMAN.

(A) PRACTICAL FACTORS.

(a) LEADERSHIP.—Demonstrate qualities of outstanding leadership.

(b) SONAR OFFICER.—Demonstrate ability to act as sonar officer during

sonar directed attacks.

(c) CONNING.—Demonstrate thorough working knowledge of conning procedure during A/S attacks.

(d) BATHYTHERMOGRAPH.—Demonstrate detailed knowledge of, and ability in, the use of the bathythermograph.

(e) NAVIGATION AND PILOTING.—Demonstrate ability to fix position of ship on a chart by taking visual bearings of navigational aids. Demonstrate complete familiarity with all applications of sonar equipment to navigation.

(f) WATCH STANDING.—Demonstrate ability to stand a cruising watch in the combat information center of own ship.

(g) D-5206.04 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) WATER PHENOMENA.—Know how variations in the physical properties of water and boundaries thereof affect underwater sound. Working knowledge of practical applications of water phenomena to sonar operations.

(b) SCREENING OPERATIONS.—General familiarity with principles of screening operations conducted by sonar equipped ships.

(c) A/S ORGANIZATION.—Thorough knowledge of A/S attack organization of a major A/S ship.

(d) INSTRUMENT APPLICATION.—Working knowledge of applications of radar and radio direction finders to A/S operations.

(e) COMMUNICATION.—Thorough knowledge of own ship's interior communication systems. Familiarity with radio communication procedure.

(f) FIRE CONTROL.—Working knowledge of principles of fire control. Working knowledge of fire control systems controlling A/S weapons.

(g) D-5206.04 (3) (B).

D-5206.041. Sonarmen H (Harbor Defense).

(1) SONARMAN H, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) OPERATION.—Demonstrate ability to start, stop, tune, and operate efficiently standard fixed underwater detection equipment, utilizing properly all operating controls under blacked-out conditions.

(c) IDENTIFICATION.—Demonstrate ability to identify sonic and magnetic indications caused by ships, and be able to distinguish such information from the indications produced by natural disturbances.

(d) PLOTTING.—Demonstrate ability to plot range and bearing and determine target course and speed.

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(e) HARBOR DETECTION EQUIPMENT.—Demonstrate a knowledge of the location, nomenclature, and function of the major components of standard

harbor detection equipment and know the safety precautions involved in their use.

(f) REPORTS AND COMMUNICATIONS.—Demonstrate ability to effect adequate reports to the watch officer. Demonstrate ability to use simple radio procedure (voice).

(g) FIRST AID.—Demonstrate a thorough working knowledge of first aid as applied to a person suffering from electric shock.

(h) LOGS.—Demonstrate ability to keep accurate logs on all types of harbor detection equipment.

(i) TESTS AND ADJUSTMENTS.—Demonstrate ability to make routine operating tests and simple adjustments of harbor detection equipment as distinguished from electronic maintenance and repairs. Be able to recognize improper functioning of major components of equipment.

(B) EXAMINATION SUBJECTS.

(a) EQUIPMENT.—Working knowledge of use, care, nomenclature, capacities, and limitations of harbor detection equipment at own station.

(b) PROCEDURE.—Working knowledge of current harbor detection operating procedure.

(c) PHYSICS OF SOUND.—Explain the elementary physics of sound as applied to sonar equipment.

(d) PRINCIPLES OF MAGNETISM.—Explain the elementary principles of magnetism as applied to harbor detection equipment.

(e) FLASHING LIGHT.—Qualify in transmitting and receiving by flashing light (blinker) at the rate of four (4) words per minute

(f) SIGNAL FLAGS.—Identify alphabet flags, numeral pennants, and repeaters comprising the international code of signals.

(g) D-5203.

(2) SONARMAN H, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) TOOLS.—Demonstrate ability to use ordinary tools employed in routine electronic service work.

(b) ELECTRONIC CIRCUITS.—Demonstrate ability to locate and identify component parts of electronic equipment by reference to the associated circuit diagrams.

(c) TEST EQUIPMENT.—Demonstrate ability to use standard test equipment in the diagnosis of common equipment failures.

(d) REPAIRS AND ADJUSTMENTS.—Demonstrate ability to make simple repairs and adjustments to standard harbor detection equipment.

(e) CABLE.—Demonstrate ability to splice cable used in conjunction with underwater detection equipment. Demonstrate ability to use common types of cable testing equipment.

(f) POWER SUPPLY.—Demonstrate ability to operate auxiliary power supply equipment, making necessary adjustments.

(g) D-5206.041 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) ELECTRICITY.—Working knowledge of the simple electrical laws; be able to apply them in the solution of elementary problems concerning direct current and alternating current circuits. Such knowledge should include conception of parallel and series resonance, and an understanding of the function of filters.

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(b) HARBOR DETECTION EQUIPMENT.—Elementary knowledge of theory and operation of harbor detection equipment at own station.

(c) SAFETY PRECAUTIONS.—Know the safety precautions to be observed with harbor detection equipment.

(d) SEMAPHORE.—Qualify in transmitting and receiving by semaphore at the rate of eight (8) words per minute.

(e) PLANTING AND RECOVERY OPERATIONS.—Knowledge of the general operations involved in the installation and maintenance of harbor detection sea units used by own activity.

(f) D-5206.041 (1) (B).

(3) SONARMAN H, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to organize and supervise the work and training of other harbor detection personnel.

(b) MATERIAL UPKEEP.—Demonstrate ability to perform material upkeep of all harbor detection equipment normally used at harbor detection stations, such upkeep to include all tests, repairs, and adjustments.

(c) STORES, PARTS, AND REPLACEMENTS.—Be thoroughly familiar with the Navy method of accounting for stores and spare parts and with the method of obtaining replacements.

(d) BOAT HANDLING AND RIGGING.—Demonstrate ability equivalent to a coxswain's in boat handling and rigging.

(e) D-5206.041 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) CIRCUIT AND WIRING DIAGRAMS.—Be able to draw circuit and wiring diagrams of standard harbor detection equipment.

(b) ELECTRONIC THEORY.—Have a working knowledge of vacuum tube theory and electronic circuits, including a thorough understanding of resistance, capacity, and inductance.

(c) INTERPRETATION OF WIRING DIAGRAMS.—Be able to interpret complex wiring diagrams for electronic equipment.

(d) D-5206.041 (2) (B).

(4) CHIEF SONARMAN H.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take charge of a harbor detection station.

(b) PLANTING AND RECOVERY OPERATIONS.—Demonstrate ability to supervise the planting and recovery of harbor detection sea units.

(c) MATERIAL UPKEEP.—Demonstrate ability to direct material upkeep of all harbor detection equipment normally used at harbor detection stations.

(d) D-5206.041 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) PLANTING AND RECOVERY OPERATIONS.—Know the procedure for planting and recovery of all types of sea units for harbor detection equipment.

(b) ELECTRONIC THEORY.—Working knowledge of electronic theory as applied to harbor detection equipment installed at own station.

(c) TACTICAL COORDINATION.—Have adequate knowledge of the general organization of the defense system in own operational area, and a knowledge of the factors involved in the proper coordination of harbor detection with the other activities of the system.

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(d) COMMUNICATIONS.—Working knowledge of communication procedures used by naval activities in area of own station.

(e) D-5206.041 (3) (B).

D-5206.05. Carpenter's Mates.

(1) CARPENTER'S MATE, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) TOOLS.—Demonstrate ability to use all hand and machine tools found in a carpenter shop on board ship.

(c) LINOLEUM.—Demonstrate ability to patch a linoleum deck covering.

(d) MORTISE AND TENON JOINT.—Demonstrate ability to make a mortise and tenon joint.

(e) FIRE EXTINGUISHERS.—Demonstrate ability to inspect, fill, and test all shipboard types of portable fire extinguishers.

(f) RESCUE BREATHING APPARATUS—Demonstrate ability to use a rescue breathing apparatus, and know its capabilities and limitations.

(g) SOUNDINGS AND LOCATIONS.—Demonstrate ability to sound compartments, and know location of bottoms, feed and fuel tanks, fresh-water tanks, peak tanks, and cofferdams in own ship.

(B) EXAMINATION SUBJECTS.

(a) WOODS.—Know the characteristics of woods used in the Navy and their uses on board ship.

(b) PREPARATION OF SURFACES.—Know how surfaces are prepared for painting, varnishing, and for linoleum.

(c) MARKINGS.—Know the standard Navy system for marking pipes and gas containers. Be able to read and understand the various types of draft marks used on naval vessels.

(d) TERMINOLOGY.—Know the terms used in boat construction.

(e) TYPES OF BOATS.—Know the types of boats in use in the Navy.

(f) JOINTS.—Name and know the uses of all recognized types of joints used in the woodworking industry.

(g) D-5203.

(2) CARPENTER'S MATE, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) LINOLEUM.—Demonstrate ability to lay linoleum.

(b) DECK PLANKINGS.—Demonstrate ability to renew deck plankings.

(c) GRATINGS.—Demonstrate ability to manufacture gratings.

(d) WOODEN REPAIRS.—Demonstrate ability to make repairs to wooden gangways and ladders.

(e) BOAT REPAIRS.—Demonstrate ability to calk seams, repair oars and spars, and make customary repairs to ship's boats.

(f) POWER TOOLS.—Demonstrate ability to use all power tools in the carpenter shop.

(g) GASKETS.—Demonstrate ability to renew gaskets in watertight doors, ports, and hatches.

(h) WATERTIGHT INTEGRITY.—Demonstrate ability to test watertight doors, ports, and hatches.

(i) JOINER AND CABINET WORK.—Demonstrate ability to lay off joiner and cabinet work.

(j) D-5206.05 (1) (A).

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(B) EXAMINATION SUBJECTS.

(a) DRAINAGE SYSTEMS.—Be able to show by diagram the drainage system in own ship.

(b) ANCHOR CHAIN AND WINDLASS.—Know how anchor chain is made up and marked, and how anchor windlass is operated.

(c) D-5206.05 (1) (B).

(3) CARPENTER'S MATE, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) WOODWORKING.—Demonstrate ability to lay out and perform all woodworking jobs that may be required on board ship. Demonstrate ability to renew a stem, stern frame, and engine foundation in a small boat, or construct a cabinet or other furniture aboard ship.

(b) DAMAGE CONTROL.—Demonstrate ability to make repairs within the scope of a damage control repair party.

(c) PATTERN MAKING.—Demonstrate ability to make simple patterns.

(d) D-5206.05 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) DAMAGE CONTROL.—Know the duties of a damage control repair party.

(b) PAINTING.—Know the current general instructions for painting.

(c) VENTILATING SYSTEM.—Know the arrangement of the ventilating system in own ship.

(d) DRYDOCK.—Know the steps preparatory to placing a ship in drydock.

(e) D-5206.05 (2) (B).

(4) CHIEF CARPENTER'S MATE.

(A) PRACTICAL FACTORS.

(a) DAMAGE CONTROL.—Demonstrate ability to perform the duties of a petty officer in charge of a damage control repair party.

(b) METAL REPAIRS.—Demonstrate ability to perform routine repair jobs with metal.

(c) D-5206.05 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) DAMAGE CONTROL OFFICER.—Know the duties of a damage control officer.

(b) DAMAGE CONTROL.—Know the action to be taken by the petty officer in charge of a damage control repair party.

(c) C & R REPAIRS.—Be able to plan and estimate time and material for any C & R repair or authorization required on board ship or at a navy yard.

(d) DRYDOCK.—Know the duties of a first lieutenant when the ship is in drydock and preparatory to flooding the dock.

(e) D-5206.05 (3) (B).

D-5206.06. Shipfitters.

(1) SHIPFITTER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) TOOLS.—Demonstrate ability to use all hand and machine tools found in the shipfitter's shop in own ship or station.

(c) FIRE EXTINGUISHERS.—Demonstrate ability to inspect, test, and fill all shipboard types of portable fire extinguishers.

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(d) RESCUE BREATHING APPARATUS.—Demonstrate ability to use a rescue breathing apparatus and know its capabilities and limitations.

(e) METAL REPAIRS.—Demonstrate ability to make minor metal repairs.

(f) SOUNDINGS AND LOCATIONS.—Demonstrate ability to sound compartments, and know the location of bottoms, feed and fuel tanks, fresh-water tanks, peak tanks, and cofferdams in own ship.

(B) EXAMINATION SUBJECTS.

(a) MATERIALS—Know the characteristics and shipboard uses of materials used in the Shipfitter's trade on board ship.

(b) MARKINGS.—Know the standard Navy system for marking pipes and gas containers. Be able to read and understand the various types of draft marks used on naval vessels.

(c) TERMINOLOGY.—Know the terms used in ship and boat construction.

(d) TYPES OF BOATS.—Know the types of boats in use in the Navy.

(e) WELDING—Know the various types of welding found on board ship, where each type should and should not be used, and the safety precautions to be observed.

(f) D-5203.

(2) SHIPFITTER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) METAL REPAIRS.—Demonstrate ability to make general metal repairs on board ship.

(b) GASKETS.—Demonstrate ability to renew gaskets in watertight doors, ports, and hatches.

(c) WATERTIGHT INTEGRITY.—Demonstrate ability to test watertight doors, ports, and hatches.

(d) D-5206.06 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) DRAIN AGE SYSTEM.—Be able to show by diagram the drainage system in own ship.

(b) ANCHOR CHAIN AND WINDLASS.—Know how anchor chain is made up and marked, and how anchor windlass is operated.

(c) PAINTING.—Know the current general instructions for painting.

(d) WELDING.—Be familiar with welding nomenclature, definitions, and symbols as set forth in General Specifications for Inspection of Material.

(e) D-5206.06 (1) (B).

(3) SHIPFITTER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) METALWORK.—Demonstrate ability to lay out and perform all metalworking jobs that may be required on board ship. Demonstrate ability to lay out sheet metal work and bend to shapes and containers, and manufacture a metal locker.

(b) DAMAGE CONTROL.—Demonstrate ability to make repairs within the scope of a damage control repair party.

(c) D-5206.06 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) DAMAGE CONTROL.—Know the duties of a damage control repair party.

(b) VENTILATING SYSTEM.—Know the arrangement of the ventilating system in own ship.

(c) WELDING.—Have a thorough knowledge of the following:

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(i) Joint design requirements as set forth in General Specifications for Inspection of Material.

(ii) "Specifications for Welding" General Specifications.

(iii) "Welding and Brazing," General Specifications for Machinery.

(d) D-5206.06 (2) (B).

(4) CHIEF SHIPFITTER.

(A) PRACTICAL FACTORS.

(a) DAMAGE CONTROL.—Demonstrate ability to perform the duties of a petty officer in charge of a damage control repair party.

(b) D-5206.06 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) DAMAGE CONTROL.—Know the action to be taken by the petty officer in charge of a damage control repair party.

(b) METAL REPAIRS.—Be able to plan and estimate time, cost, and material for any metal repair job required on board ship or at a navy yard.

(c) DAMAGE CONTROL OFFICER.—Know the duties of a damage control officer.

(d) DRYDOCK.—Know the steps preparatory to placing a ship in drydock. Know the duties of a first lieutenant when the ship is in drydock and preparatory to flooding the dock.

(e) C & R MACHINERY.—Understand the operation and use of all shipboard machinery under the cognizance of the C & R Department.

(f) GENERAL SPECIFICATIONS.—Have a thorough knowledge of "Specifications for Welding," General Specifications; and "Welding and Brazing," General Specifications for Machinery.

(g) D-5206.06 (3) (B).

D-5206.07. Metalsmiths.

(1) METALSMITH, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) TOOLS.—Demonstrate ability to use all hand tools, pneumatic tools, and machine tools commonly used in metal work shops, observing necessary safety precautions.

(c) PIPE FITTING.—Demonstrate ability to cut thread and fit pipe, to make joints in pipe lines, and to remove and replace pipe covering.

(d) FABRICATION.—Demonstrate ability to manufacture and repair simple sheet metal sections, such as ventilating ducts, lockers, etc.

(e) WELDING.—Demonstrate ability to perform simple oxyacetylene welding, brazing, and soldering, observing necessary safety precautions.

(f) TOOL REPAIR.—Demonstrate ability to sharpen, maintain, and repair hand tools.

(g) ANNEALING.—Demonstrate ability to anneal and work copper and brass.

(h) BLUEPRINTS.—Demonstrate ability to read and understand simple blueprints.

(B) EXAMINATION SUBJECTS.

(a) IDENTIFICATION OF METALS.—Be able to identify metal and structural shapes used aboard own ship. Know the kinds and types of piping used in various systems found on naval vessels.

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(b) CARE OF TOOLS AND EQUIPMENT.—Thorough knowledge of the proper care and stowage of tools and equipment.

(c) FABRICATION.—Elementary knowledge of the fabrication of metal shapes, including ability to compute volumes for square and round tanks.

(d) WELDING.—Thorough knowledge of safety precautions for the handling of arc welding equipment.

(e) SOLDER.—Know the uses and the purposes of the various kinds of solder.

(f) HEAT TREATMENT.—Know the special pre-heating treatment required for metal objects known or suspected of having cores.

(g) GASES.—Be able to recognize bottled gases by their standard markings and know the safety precautions required for their use.

(h) FORGING.—Elementary knowledge of minor forging work.

(i) DAMAGE CONTROL.—Know the organization of damage control party to which assigned.

(j) D-5203.

(2) METALSMITH, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) TOOLS.—-Demonstrate outstanding ability and skill in the use of all hand tools, pneumatic tools, and machine tools used by metalsmiths. Demonstrate a knowledge of the safety precautions involved.

(b) PIPE.—Demonstrate ability to make patches and repairs to pipe.

(c) COPPER SHAPES.—Demonstrate ability to make copper forms, shapes, floats, and balls.

(d) TESTS.—Demonstrate ability to make hydrostatic tests of pipe valves and fittings.

(e) WATERTIGHT DOORS.—Demonstrate ability to test and repair watertight doors, ports, and hatches.

(f) WELDING.—Demonstrate ability to qualify as a welder, third class. Demonstrate a thorough knowledge of the safety precautions to be observed before welding in any part of a ship.

(g) FORGING.—Demonstrate ability to perform minor forging work.

(h) BLUEPRINTS.—Demonstrate ability to read and understand all blueprints used by a metalsmith.

(i) D-5206.07 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) USES OF METALS.—Know the uses of copper, brass, iron, steel, and other metals found on board ship. Know the uses of the various forms of stocks, bars, billets, and shapes.

(b) IDENTIFICATION OF METALS.—Be able to identify stock metals by their standard markings and to conduct simple tests to determine various metals and alloys.

(c) DAMAGE CONTROL.—General knowledge of damage control organization aboard own ship.

(d) DRAINAGE SYSTEM.—Show by diagram the drainage system in own ship.

(e) FORGING.—Working knowledge of the principles and practices of forging and tempering metal shapes.

(f) SAFETY PRECAUTIONS.—Know the safety precautions to be observed in working metals and in the use of forges.

(g) ALLOYS AND FLUX.—Know the uses and composition of various alloys and of flux.

(h) LAYING OUT.—Elementary knowledge of the procedure for laying out and performing metal working jobs aboard ship.

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(i) WELDING.—Be familiar with welding nomenclature, definitions, and symbols, as set forth in General Specifications for Inspection of Material.

(j) PAINTING.—Know the current general instructions for painting.

(k) D-5206.07 (1) (B).

(3) METALSMITH, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) DAMAGE CONTROL.—Demonstrate ability to act as petty officer in charge of a damage control party.

(b) SUPERVISION AND TRAINING.—Demonstrate ability to supervise the work and training of lower ratings.

(c) PIPE.—Demonstrate proficiency in the bending of pipe. Demonstrate ability to make templates and build targets.

(d) FABRICATION.—Demonstrate ability to lay out and perform all metal work jobs that may be required on board ship.

(e) LAYING OUT.—Demonstrate ability to develop and show by rough sketches the method of laying out and fabricating the following funnels, 45° ells, 90° ells, and tees.

(f) FORGING.—Demonstrate ability to forge metal shapes and temper hand tools, observing all safety precautions.

(g) WELDING.—Demonstrate ability and skill in performing complex oxyacetylene and arc welding jobs. Be able to take charge of welding activities in own ship or station.

(h) D-5206.07 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) DAMAGE CONTROL.—Know the purpose of damage control and the duties that are likely to be performed by the petty officer in charge of a repair party.

(b) VENTILATING SYSTEM.—Show by diagram the arrangement of the ventilating system in own ship.

(c) HOLLOW CASTINGS.—Know what procedure is required before the welding of hollow castings is attempted.

(d) WELDING.—Familiarity with the following:

(i) Joint design requirements as set forth in General Specifications for Inspection of Material.

(ii) "Specifications for Welding," General Specifications.

(iii) "Welding and Brazing," General Specifications for Machinery.

(e) HEAT TREATING.—Knowledge of heat treating and the special treatment required for alloys. Know the safety precautions involved.

(f) METAL TESTS.—Know how standard hardness tests are made and what equipment is used.

(g) D-5206.07 (2) (B).

(4) CHIEF METALSMITH.

(A) PRACTICAL FACTORS.

(a) DAMAGE CONTROL.—Demonstrate ability to organize and direct damage control parties.

(b) SUPERVISION.—Demonstrate ability to organize and to take charge of the metalsmith shop. Be able to take charge of the welding shop, and to instruct and qualify candidates for welder, third class.

(c) METAL TESTS.—Demonstrate ability to conduct standard hardness tests

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and to operate standard hardness testing equipment, provided that own ship or station is so equipped.

(d) D-5206.07 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) C. & R. REPAIRS.—Know how to plan and estimate time, cost, and material for any C. & R. metal repair job, or alteration required to be completed on board ship or at a navy yard.

(b) C. & R. MACHINERY.—Understand the operation and use of all shipboard machinery under the cognizance of the C. & R. Department.

(c) GENERAL SPECIFICATIONS.—Thorough knowledge of "Specifications for Welding," General Specifications, "Welding and Brazing," General Specifications for Machinery.

(d) DAMAGE CONTROL.—Thorough knowledge of damage control organization aboard own ship.

(e) RECORDS & REPORTS.—Know the records to be kept and the reports to be submitted by the chief metalsmith.

(f) D-5206.07 (3) (B).

D-5206.08. Molders.

(I) MOLDER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (I).

(b) TOOLS.—Demonstrate ability to use all tools and equipment required by molders, observing the necessary precautions.

(c) MOLDINGS.—Demonstrate ability to make simple two-part molds requiring few cores.

(d) GATING AND HEADING.—Demonstrate ability to apply adequate risers and gates to simple castings in the production of sound castings.

(e) SCRAPS AND TRIMMINGS.—Demonstrate ability to make over non-ferrous scraps and trimmings for use in noncritical castings.

(f) TOOL REPAIR.—Demonstrate ability to maintain hand tools in good operating condition.

(g) BLUEPRINTS.—Demonstrate ability to read simple blueprints, drawings, and sketches.

(B) EXAMINATION SUBJECTS.

(a) METALS.—Elementary knowledge of the characteristics and uses of various metals aboard own ship or station. Be able to identify metals, know their specific weights, and estimate the weights of simple shapes.

(b) FURNACES.—Know the principles of operation of furnaces aboard own ship, including safety precautions.

(c) NOMENCLATURE.—Know the most commonly used molding terms. Know the tools and equipment used in a foundry.

(d) GASES.—Be able to recognize bottled gases by their standard markings and know the safety precautions required for their use.

(e) SANDS.—Know the various types of sand mixes used for molding and coremaking. Know the various materials used in making up molding sand and the essential characteristics of each material.

(f) CARE OF TOOLS AND EQUIPMENT.—Thorough knowledge of the proper care and stowage of tools and equipment.

(g) COREMAKING.—Elementary knowledge of the principles and techniques of coremaking.

(h) D-5203.

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(2) MOLDER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) TOOLS.—Demonstrate outstanding ability and skill in the use of all tools and equipment used by molders, observing all safety precautions.

(b) MOLDING—Demonstrate ability to make difficult molds, including the use of complicated coring, drawbacks, deep lifts, cheeked molds, and sweeps.

(c) FURNACES.—Demonstrate ability to operate furnaces aboard own ship or station. Demonstrate ability to reline furnaces and perform routine repairs. Demonstrate a knowledge of the safety precautions in connection with the use of fuel oil and electrical equipment.

(d) COREMAKING.—Demonstrate ability to make cores and to operate a core oven.

(e) BLUEPRINTS.—Demonstrate ability to read all blueprints used in molding.

(f) D-5206.08 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) SAFETY PRECAUTIONS.—Know the safety precautions to be observed in the making of cored castings.

(b) METALS.—Thorough knowledge of the characteristics and uses of various metals aboard own ship or station. Be able to identify stock materials by their standard markings.

(c) CUPOLA.—Know thoroughly cupola practices, including the sequence of operations.

(d) FOUNDRY.—Knowledge of foundry procedure and terms most commonly used. Knowledge of the manner in which a casting solidifies, including knowledge of the three types of contraction present in metal casting.

(e) D-5206.08 (1) (B).

(3) MOLDER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) FOUNDRY.—Demonstrate ability to equip, maintain, and supervise a foundry. Demonstrate ability to instruct others in the common foundry practices.

(b) MOLDING.—Demonstrate ability to make all classes of molds, both dry and green sand, as well as the ability to make molds from castings directly, taking care of pattern shrinkage during the molding operation.

(c) CASTINGS.—Demonstrate ability to use open and blind risers, internal and external chills, and all types of gates used in the production of clean, sound castings.

(d) D-5206.08 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) CASTING JOB.—Know how to estimate time, labor, material, and kind of finish for a large casting job.

(b) BILLS OF MATERIAL.—Know how to make out bills of material. Know the materials usually kept in stock for shop use.

(c) HEAT TREATING.—Familiarity with heat treating as applied to foundry practices.

(d) PATTERNMAKING.—General understanding of the principles and practices of patternmaking.

(e) FINISHING.—General understanding of the machining and finishing of castings.

(f) CASTING TESTS.—Elementary knowledge of casting tests.

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(g) DAMAGE CONTROL.—Know the duties of a molder in the damage control work of the ship to which attached.

(h) REPORTS AND RECORDS.—Know the reports submitted and the records kept by the petty officer in charge of the molding shop.

(i) METAL TESTS.-—Know how standard hardness tests are made and what equipment is used.

(j) SOLIDIFICATION OF METALS.—Know the solidification rate of metals, the amounts of liquid and solid contraction, and the theory and application of controlled directional solidification in producing sound castings.

(k) SANDS.—Know the properties desired in a good molding sand and the effect of these properties on the production of good castings.

(l) D-5206.08 (2) (B).

(4) CHIEF MOLDER.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to organize and supervise a large foundry installation. Demonstrate ability to train all subordinates.

(b) IDENTIFICATION OF METALS.—Demonstrate ability to conduct simple tests for the recognition and identification of metals and alloys.

(c) METAL TESTS.—Demonstrate ability to conduct standard hardness tests and to operate standard hardness testing equipment, provided that own ship or station is so equipped.

(d) D-5206.08 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) WELDING.—Thorough knowledge of welding procedure as applied to foundry practices.

(b) TESTS.—Thorough knowledge of methods used for testing castings.

(c) HEAT TREATING.—Thorough knowledge of heat treating procedures as applied to foundry practices.

(d) D-5206.08 (3) (B).

D-5206.09. Patternmakers.

(1) PATTERNMAKER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) TOOLS.—Demonstrate ability to use all instruments and woodworking tools, both hand and power, required in patternmaking, observing the necessary safety precautions.

(c) TOOL REPAIR.—Demonstrate ability to sharpen, maintain, and repair patternmaker's tools and equipment.

(d) LAYOUTS.—Demonstrate ability to make simple layouts from castings.

(e) PATTERNS.—Demonstrate ability to make from blueprints and sketches simple wood patterns not requiring core boxes.

(f) FINISHING.-—Demonstrate ability to sand and finish patterns.

(g) WOOD STORAGE—Demonstrate ability to stack and stow all kinds of woods used in patternmaking and carpentry.

(h) CARPENTRY.—Demonstrate ability to perform simple carpentry tasks.

(i) BLUEPRINTS AND DRAWINGS.—Demonstrate ability to read blueprints, drawings, sketches, and patternmaking symbols used by patternmakers.

(B) EXAMINATION SUBJECTS.

(a) WOODS.—Know the characteristics and uses of the various woods used in patternmaking and be able to identify them by their grains. Know the

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allowances to be made in pattern construction for shake, shrinkage, drawing, etc.

(b) METALS.—Know the characteristics and uses of the various metals used in patternmaking. Know the shrinkage of metals and the rules to be used in determining shrinkage.

(c) IDENTIFICATION OF PATTERNS.—Know the color scheme used for finished patterns.

(d) RELATED SHOP PRACTICES.—General knowledge of the relationship between pattern shop, foundry, and machine shop. Elementary knowledge of molding and machine shop terms and practices.

(e) PATTERN STORAGE.—Know the proper method of stowing and caring for patterns.

(f) D-5203.

(2) PATTERNMAKER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) TOOLS.—Demonstrate outstanding ability and skill in the use of all instruments and woodworking tools, both hand and power, required in patternmaking, observing the necessary safety precautions.

(b) PATTERNS.—Demonstrate ability to make patterns required aboard own ship or station.

(c) D-5206.09 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) WOODS AND METALS.—Be thoroughly familiar with all characteristics and uses of the various woods and metals employed in patternmaking. Thorough knowledge of structural woods.

(b) FOUNDRY PRACTICES.—General knowledge of foundry practices and the terms used in molding and casting.

(c) BLUEPRINTS AND LAYOUTS.—Be able to read all blueprints and have a general knowledge of layouts.

(d) SAFETY PRECAUTIONS.—Know the safety precautions to be observed while making or repairing cored castings.

(e) PATTERNS.—Have a thorough knowledge of pattern coloring and finishing. Know how patterns are accounted for in store and how they are checked prior to re-use.

(f) COREMAKING.—General knowledge of coremaking and core boxes.

(g) D-5206.09 (1) (B).

(3) PATTERNMAKER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise and train other patternmakers. Demonstrate ability to take charge of a pattern shop.

(b) PATTERNS.—Demonstrate ability to make intricate patterns of excellent workmanship. (Patterns of practical use only should be required.)

(c) LAYOUTS.—Demonstrate ability to make layouts.

(d) BLUEPRINTS.—Demonstrate ability to read and understand all blueprints, drawings, and sketches required for patternmaking and molding activities.

(e) TEMPLATES AND JIGS.—Demonstrate ability to make wooden templates and jigs for use in pattern and other shops.

(f) D-5206.09 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) PATTERNMAKING JOB.—Know how to estimate time, material, and cost for a large patternmaking job.

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(b) MOLDERS INSTRUCTIONS.—Know the instructions to be given to a molder with regard to the use of intricate patterns.

(c) FLASKS.—Know how to design and make flasks for required patterns.

(d) D-5206.09 (2) (B).

(4) CHIEF PATTERNMAKER.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to organize and supervise a large patternmaking or carpentry shop. Demonstrate ability to train all subordinates.

(b) SKETCHES AND DRAWINGS.—Demonstrate ability to make sketches and drawings required for a patternmaking job.

(c) D-5206.09 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) CASTING JOB.—Know how to estimate time, material, and cost for a large casting job.

(b) FOUNDRY PROCEDURE.—Thorough knowledge of foundry procedure.

(c) MACHINE SHOP PROCEDURE.—Thorough knowledge of procedure required for finishing and machining castings.

(d) D-5206.09 (3) (B).

D-5206.101. Special Artificers D—(Special Devices).

(1) SPECIAL ARTIFICER D, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) TOOLS.—Demonstrate ability to use properly all hand tools and power tools such as are used for installation and maintenance of special devices.

(c) MAINTENANCE INSTRUCTIONS.—Demonstrate ability to read diagrams and follow instructions in maintenance manuals for erection and maintenance of special devices.

(d) OPERATION.—Demonstrate ability to operate all special devices well enough to recognize their proper adjustment and smooth operation.

(e) DIAGRAMS.—Demonstrate ability to trace wiring diagrams for special devices.

(f) MAINTENANCE PROBLEMS.—Demonstrate ability to recognize and solve the more common types of maintenance problems.

(g) MAINTENANCE SERVICING.—Demonstrate ability to give a general cheek-up or routine maintenance servicing, including removal, cleaning, lubricating, testing, and replacement of parts.

(B) EXAMINATION SUBJECTS.

(a) SECURITY.—Knowledge of the current regulations regarding the security classification of each device in own ship or station.

(b) THEORY.—Elementary knowledge of the rudimentary principles of electricity and hydraulics.

(c) DEVICES.—General knowledge of the maintenance and operation of all synthetic devices and training aids developed for and used in training.

(d) NOMENCLATURE.—General familiarity with the nomenclature used in special devices maintenance.

(e) DAILY LOG.—Know how to keep a daily log on each device and run a check list for those needing it.

(f) POWER REQUIREMENTS.—Knowledge of how to interpret the reference

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data found in manuals concerning the electrical power requirements of the devices, including fuses, bulbs, and accessories.

(g) SAFETY PRECAUTIONS.Knowledge of the safety precautions to be taken in the operation and maintenance of the devices.

(h) D-5203.

(2) SPECIAL ARTIFICER D, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) STOWAGE.—Demonstrate ability to handle, stow, and ship all mechanical, electrical, hydraulic, pneumatic, and optical special devices in use at own ship or station.

(b) REPAIRS.—Demonstrate ability to improvise in making repairs of a temporary nature when needed parts and supplies are not available.

(c) TEST EQUIPMENT.—Demonstrate ability to use test equipment on all special device apparatus except electronic apparatus.

(d) TROUBLE SHOOTING.—Demonstrate ability to trouble shoot common and less common equipment failures effectively and make adjustments quickly.

(e) BLUEPRINTS.—Demonstrate ability to work from blueprints and shop sketches in installing additional accessories to special devices.

(f) ASSEMBLY.—Demonstrate ability, under supervision, to disassemble and reassemble special devices.

(g) D-5206.101 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) PROCUREMENT.—Knowledge of the procedure for ordering equipment for special devices maintenance.

(b) DEVICES.—General knowledge of the purpose and functions of all special training devices.

(c) THEORY.—Fundamental knowledge of the principles and application of hydraulics, mechanics, and electricity involved in the devices.

(d) D-5206.101 (1) (B).

(3) SPECIAL ARTIFICER D, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) MAINTENANCE.—Demonstrate a thorough and detailed understanding of the maintenance of all special devices in own ship or station.

(b) NEW DEVICES.—Demonstrate ability to learn quickly the operation and maintenance of new and improved devices.

(c) TROUBLE SHOOTING.—Demonstrate thorough competence in troubleshooting and making adjustments to special devices.

(d) TESTING TOOLS.—Demonstrate ability to calibrate and test accurately all types of special tools and equipment.

(e) ASSEMBLY.—Demonstrate ability to disassemble and assemble special devices.

(f) D-5206.101 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) RECORDS.—Know how to maintain all log books for maintenance problems and projects, particularly those which require a report,

(b) REPORTS.—Know how to prepare a maintenance report.

(c) THEORY.—Thorough knowledge of the principles involved in mechanical, electrical, electronic, hydraulic, pneumatic, and optical special devices.

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(d) INSPECTIONS.—Thorough knowledge of all inspection and checking procedures used in special device installation and maintenance.

(e) D-5206.101 (2) (B).

(4) CHIEF SPECIAL ARTIFICER D.

(A) PRACTICAL FACTORS.

(a) SUPERVISION OF REPAIRS.—Demonstrate ability to supervise and inspect the overhaul and repair of all special devices equipment.

(b) SUPERVISION OF TESTING.—Demonstrate ability to superintend the calibration, testing, and adjustment of all devices used at a Naval Training School for Special Devices, or in a ship or station.

(c) TRAINING.—Demonstrate ability to train others in the maintenance techniques of special devices.

(d) ORGANIZATION AND ADMINISTRATION.—Demonstrate ability to organize and administer a special devices repair shop.

(e) D-5206.101 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) ORGANIZATION.—Knowledge of naval organization pertaining to the specialized field of activity.

(b) DUTIES.—Thorough familiarity with the duties of all ratings associated with special device maintenance activities,

(c) INSPECTION REPORTS.—Knowledge of how to keep periodic reports of inspections of special devices equipment, as required by the various bureaus.

(d) D-5206.101 (3) (B).

D-5206.1021. Special Artificers I (WR)—(Watch Repairmen).

(1) SPECIAL ARTIFICER I (WR), THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) TOOLS.—Demonstrate proficiency in the use of simple small tools and equipment. Demonstrate ability to sharpen simple cutting tools and drills, and to keep tools in good condition.

(c) WATCHMAKER'S LATHE.—Demonstrate ability to use a watchmaker's lathe in cutting the following: straight diameters, tapered diameters, and square seats and shoulders.

(d) FABRICATION.—Demonstrate ability to fabricate clock parts from steel, brass, german-silver, and copper. Be able to make simple pins, springs, and levers for clocks.

(e) CLEANING.—Demonstrate ability to disassemble, clean, and reassemble clock movements. Be able to use a cleaning machine properly and to lubricate a clock.

(f) REFINISHING.—Demonstrate ability to refinish watch parts.

(g) BALANCE AND STAFF.—Demonstrate ability to use a staking tool, poising tool, and truing caliper in repairing a balance and staff.

(h) WATCH RATE RECORDER.—Demonstrate ability to operate a watch rate recording machine and interpret the records correctly.

(i) CLICK SPRING.—Demonstrate ability to make a clock click spring from flat steel stock, and to harden, temper, and finish the part.

(B) EXAMINATION SUBJECTS.

(a) MAGNETISM.—Explain the effect of magnetism in a clock and how it is removed.

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(b) CHEMICALS AND COMPOUNDS.—Know the use of cyanide, ammonia, alcohol, shellac, wax, and other chemicals and compounds used in horology.

(c) NOMENCLATURE.—Be thoroughly familiar with all the terms commonly used in horology.

(d) PROCESSES.—Be able to explain in detail the following processes with reference to a standard Navy clock:

(i) Disassembly.

(ii) Cleaning.

(iii) Replacement of balancing staff.

(iv) Reassembly.

(v) Lubrication.

(vi) Regulation on watch rate recording machine.

(e) D-5203.

(2) SPECIAL ARTIFICER I (WR), SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) WATCHMAKER'S LATHE.—Demonstrate ability to use a watchmaker's lathe in performing the following operations:

(i) Drilling.

(ii) Boring.

(iii) Polishing pivots.

(iv) Manufacturing winding arbors.

(v) Rebushing clock plates.

(b) SOLDERING.—Demonstrate ability, to make hard-solder and soft-solder joints using a gas torch or electrical equipment.

(c) COMPARING WATCH.—Demonstrate ability to disassemble, clean, reassemble, lubricate, and regulate to Navy specifications a comparing watch movement. Also demonstrate ability to fit ready-made watch parts such as staffs, mainsprings, stems, crowns, and jewels in comparing watches.

(d) BELL-CLOCK.—Demonstrate ability to disassemble, clean, reassemble, and regulate a standard ship's bell-clock movement.

(e) D-5206.1021 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) MAINSPRINGS.—Explain the construction and function of mainsprings.

(b) MOVEMENT TRAIN.—Trace the power from the mainspring through the entire train of a watch movement.

(c) GEARING RATIOS.—Explain simple gearing ratios as used in watches including both 12 hour and 24 hour dial trains.

(d) LEVER ESCAPEMENT.—Explain the theory and operation of the lever escapement.

(e) D-5206.1021 (1) (B).

(3) SPECIAL ARTIFICER I (WR), FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) FABRICATION.-—Demonstrate ability to make balance staffs, jewel settings, setting levers, setting detents, actuating springs, stems, clicks, bushings, screws, and balance cocks.

(b) CHRONOGRAPH STOP WATCH.—Demonstrate ability to disassemble, clean, reassemble, lubricate, and regulate to Navy specifications a chronograph stop watch movement.

(c) FLAT HAIRSPRING.—Demonstrate ability to repair, vibrate, and form an overcoil on a damaged flat hairspring. Adjust and regulate a watch containing this type of hairspring to pass standard Navy timing specifications.

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(d) SPLIT-SECOND TIMERS.—Demonstrate ability to adjust split-second timers.

(e) BROKEN SCREWS.—Demonstrate ability to remove broken screws and taps.

(f) JEWELS.—Demonstrate ability to select and fit receiving and discharging pallet stones, roller jewels, and burnished or friction jewels.

(g) ESCAPEMENT.—Demonstrate ability to adjust an escapement.

(h) TEMPERATURE ERROR.—Demonstrate ability to compensate a balance for temperature error.

(i) COMPARING WATCH.—Demonstrate ability to adjust and regulate a standard comparing watch to five (5) positions.

(j) WATCH RATE RECORDER.—Demonstrate ability to diagnose mechanical defects by examination of the record tape from a watch rate recorder.

(k) CHRONOMETERS.—Demonstrate ability to mount, unmount, cork, and uncork ship's chronometers in preparation for shipment or subsequent to receipt from chronometer supply pools.

(l) D-5206.1021 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) DETENT AND SETTING LEVERS.—Explain the construction and function of the detent and setting levers.

(b) ACTUATING CAM.—Explain the action of the actuating cam in a stop watch.

(c) GEAR TRAIN.—Compute a gear train and ascertain the size and number of teeth in a missing wheel or pinion.

(d) JEWELING.—Give a complete explanation of friction jeweling, making a setting, and mounting a balance hole jewel and cap jewel in a sample plate.

(e) LEVER ESCAPEMENT.—Draw a diagram of a lever escapement showing part of the escape wheel, the fork, the arbor, and the pallets.

(f) ROLLER TABLE.—Draw a diagram illustrating the action of the roller table, and explain the action of the guard pin.

(g) HAIRSPRING.—Explain the function of the hairspring and the theory and function of the Breguet overcoil.

(h) CLEANING FLUIDS.—Have a working knowledge of cleaning fluids and rinsing solutions and their formulas.

(i) LUBRICANTS.—Have a thorough knowledge of watch and clock lubricants.

(j) PROCUREMENT.—Know the procedure for procuring spare parts, tools, materials, and equipment. Know how to stock them in a careful orderly fashion and know the accountability for them.

(k) CHRONOMETERS.—Know the rules for proper care and handling of ship's chronometers.

(l) D-5206.1021 (2) (B).

(4) CHIEF SPECIAL ARTIFICER I (WR).

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate complete knowledge of watch and clock repair in supervision, instruction, and examination of artificers in lower ratings.

(b) TOOLS.—Demonstrate ability to use all tools employed in watch repair.

(c) FABRICATION.—Demonstrate ability to make any type of wheel, plate, or pinion.

(d) HAIRSPRING.—Demonstrate ability to place a new hairspring in a comparing watch using the vibrating method.

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(e) WATCH RATE RECORDER.—Demonstrate ability to conduct timing tests on a watch through six (6) positions on a watch rate recorder and interpret the records obtained.

(f) D-5206.1021 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) REGULATING PINS.—Explain in detail the function of regulating pins and their effect on timekeeping.

(b) LEVER ESCAPEMENT.—Draw a diagram of a lever escapement, explaining in detail the design and functions of the pallet jewels, and differences of angles of receiving and discharging jewels. Explain the design of roller jewels, and explain the safety action.

(c) TEMPERATURE.—Explain the effect of temperature changes on a split bimetallic balance and steel hairspring. Explain the effect of temperature changes on a modern solid balance with a special alloy hairspring such as Elinvar.

(d) FUSEE AND DETENT ESCAPEMENT.—Explain the operation of the fusee and detent escapement used in ship's chronometers.

(e) D-5206.1021 (3) (B).

D-5206.1022. Special Artificers I (TR)—(Typewriter and Office Equipment Repairmen).

(1) SPECIAL ARTIFICER I (TR), THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) ASSEMBLY.—Demonstrate ability to disassemble, clean, reassemble, lubricate, and adjust any standard typewriter.

(c) HAND TOOLS.—Demonstrate ability to use all hand tools commonly employed in the repair of office machines.

(d) MACHINE TOOLS.—Demonstrate ability to perform simple machine tool operations such as drilling, tapping, grinding, etc.

(e) TYPEWRITING.—Demonstrate ability to operate a typewriter rapidly enough to test its operation.

(B) EXAMINATION SUBJECTS.

(a) SPECIAL TOOLS.—List the special tools used in the repair of at least one office machine.

(b) CLEANING SOLUTIONS.—Know the correct cleaning solution to be used on various kinds of office machines.

(c) NOMENCLATURE.—Know the name and function of the principal parts of common office machines and understand the terminology used in a repair shop.

(d) D-5203.

(2) SPECIAL ARTIFICER I (TR), SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) MACHINE TOOLS.—Demonstrate ability to do simple turning and boring on a lathe.

(b) ADJUSTMENTS.—Demonstrate ability to make major adjustments to at least two types of typewriters. Demonstrate ability to analyze troubles reported by operators and to make any necessary minor adjustments correctly and speedily.

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(c) REPLACEMENTS.—Demonstrate ability to make the following replacements:

(i) Refit and adjust a new center tie on a noiseless typewriter.

(ii) Install a new main base on a standard typewriter.

(iii) Install and align new individual type.

(d) CLEANING.—Demonstrate ability to clean and lubricate properly adding machines, calculators, and duplicating machines.

(e) SOLDERING AND BRAZING.—Demonstrate ability to silver solder and braze.

(f) HEAT TREATMENT.—Demonstrate ability to temper and harden tools such as screw drivers, spring hooks, etc.

(g) D-5206.1022 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) CHECKING.-—Describe how the following checks are made:

(i) Checking alignment of type.

(ii) Checking back spacer.

(iii) Checking tabulator.

(iv) Checking ribbon guide.

(b) SPECIAL TOOLS.—List all the special tools used in typewriter repair.

(c) OPERATING PRINCIPLES.—Explain the principles of the operation of an adding machine, calculator, and duplicating machine.

(d) SPARE PARTS AND SUPPLIES.—Know how spare parts and supplies are stored, how they are obtained from stock, and the records which must be kept on such items.

(e) D-5206.1022 (1) (B).

(3) SPECIAL ARTIFICER I (TR), FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise all work in a repair shop.

(b) TRAINING.—Demonstrate ability to train men in lower ratings in the adjustment, cleaning, and lubrication of office machines.

(c) OVERHAUL.—Demonstrate ability to overhaul completely any typewriter.

(d) OFFICE MACHINES.—Demonstrate ability to disassemble, make minor repairs to, and reassemble adding machines, calculators, and duplicating machines.

(e) D-5206.1022 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) TYPEWRITERS.—Explain in detail the escapement mechanism, key action, methods of aligning type, carriage adjustments, etc., on all machines.

(b) OFFICE MACHINES.—Explain the construction and function of the principal parts of adding machines, calculators, and duplicating machines.

(c) RECORDS.—Know how to keep all records in a repair shop.

(d) PROCUREMENT.—Know the procedure for obtaining spare parts, tools, and supplies, and know how to use catalogues in ordering parts.

(e) D-5206.1022 (2) (B).

(4) CHIEF SPECIAL ARTIFICER I (TR).

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take complete charge of repair shop.

(b) TRAINING.—Demonstrate ability to train men in lower ratings in all phases of office machine repair.

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(c) REPAIRS.—Demonstrate ability to make all repairs to any type of office machine.

(d) D-5206.1022 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) REPAIR SHOP DESIGN.—Be able to design a repair shop suitable for all types of shipboard office machines. Make a sketch showing the position of work benches, tool racks, machine tools, etc.

(b) SPARE PARTS AND SUPPLIES.—Make a list showing the kind and quantity of tools, spare parts, and supplies that should be procured for a new shop. Know the accountability for all such items.

(c) RECORDS.—Have a thorough knowledge of all records that are kept in a repair shop.

(d) D-5206.1022 (3) (B).

D-5206.103. Special Artificers O—(Optical).

(1) SPECIAL ARTIFICER O, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) TOOLS.—Demonstrate ability to use all hand tools common to a naval optical shop and to operate machine tools, including a precision lathe, milling machine, and drill press.

(c) MEASURING INSTRUMENTS.—Demonstrate ability to take micrometer and vernier readings accurately.

(d) OVERHAUL.—Demonstrate ability to overhaul binoculars, boresight telescopes, gunsight telescopes, turret periscopes, bearing circles, and azimuth circles. In such overhaul demonstrate ability in the following processes:

(i) Inspection.

(ii) Disassembly.

(iii) Repair or replacement of defective parts.

(iv) Refinishing of surfaces.

(v) Cleaning.

(vi) Reassembly.

(vii) Collimation and adjustment.

(viii) Sealing, gassing, and drying.

(e) CEMENTING.—Demonstrate ability to cement lenses by proper removal of old cement, application of new cement, and use of centering machine.

(f) SILVERING AND PLATING.—Demonstrate ability to silver and plate mirrors including preparation of surfaces, compounding and application of copper or other plating, and the application of backing paints.

(g) BLUEPRINTS.—Demonstrate ability to read simple blueprints.

(h) PARALLAX.—Define parallax and demonstrate ability to remove it.

(i) OPTICAL FILMING.—Demonstrate ability to operate one mark of optical filming unit.

(B) EXAMINATION SUBJECTS.

(a) OPTICAL INSTRUMENTS.—Have a knowledge of the location, use, and routine inspection of the common instruments in use aboard ship, which contain optical systems. Have an elementary knowledge of the optical construction of complex instruments such as rangefinders, submarine periscopes, and lead computing sights.

(b) OPTICAL SYSTEMS.—Have a knowledge of common types of optical systems and the use of various kinds of lenses and prisms.

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(c) COMPUTATION AND DIAGRAMS.:—Have a knowledge of simple optical computations, such as focal length, and be able to diagram the flow of light through optical systems.

(d) THEORY OF LIGHT.—Have an elementary knowledge of the theory of light including the principles of refraction, reflection, and magnification, and the theory of optical filming.

(e) NOMENCLATURE.—Have a knowledge of the names and functions of the principal parts of common instruments which employ optical systems.

(f) CARE AND HANDLING.—Know the precautions to be taken in handling and stowing optical instruments, precision tools, and special materials and supplies.

(g) PUBLICATIONS.—Have a good working knowledge of applicable Bureau of Ordnance pamphlets, sketches, and drawings. Know where they are obtained, where kept on board ship, and the responsibility for them,

(h) D-5203.

(C) SCHOOL QUALIFICATIONS.

(a) Successfully complete the course at a Primary Optical School, or satisfy the commanding officer that the candidate has achieved a comparable degree of competence.

(2) SPECIAL ARTIFICER O, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) TOOLS.—Demonstrate thorough competence in the use of hand and machine tools in a naval optical shop.

(b) OVERHAUL.—Demonstrate ability to perform work in one of the following fields of specialization:

(i) Rangefinders.—Repair and overhaul of all marks and modifications, including the casting loose and securing of a long base rangefinder.

(ii) Submarine Periscopes.—Repair and overhaul of all marks and modifications. Know the precautions to be followed in removing a submarine periscope.

(iii) Lead Computing Sights.—Repair and overhaul of all marks and modifications.

(c) CEMENTING.—Demonstrate proficiency in the cementing of lenses.

(d) SILVERING AND PLATING.—Demonstrate proficiency in the silvering and plating of mirrors.

(e) OPTICS FILMING UNIT.—Demonstrate ability to maintain one mark of optics filming unit in operating condition.

(f) D-5206.103 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) OPTICAL INSTRUMENTS.—Know the location on board ship, and the use of all optical instruments in the specialty selected under (2) (A) (b) above.

(b) OPTICAL SYSTEMS.—Understand the construction and operating principles of optical instruments in the specialty selected, including lens and prism systems, special mechanical systems, and the names and functions of principal parts.

(c) SUPPLIES.—Know the types of spare parts and other supplies available in own ship and the procedures for obtaining them from stock. Know how to obtain drawing and part numbers.

(d) D-5206.103 (1) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Successfully complete the course in the specialty selected under (2) (A) (b)

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above at an Advanced Optical School; or in the case of a candidate with outstanding ability who does not have an opportunity to attend the school, satisfy the commanding officer that the candidate has achieved a comparable degree of competence in the specialty selected above.

(3) SPECIAL ARTIFICER O, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) OVERHAUL.—Be able to do the following:

(i) Demonstrate a thorough knowledge of the operation and repair of equipment within the specialty selected under (2) (A) (b) and, in addition, demonstrate proficiency in a second specialty as listed under (2) (A) (b).

(ii) Demonstrate ability to overhaul and repair sextants and stadimeters using the processes outlined in (1) (A) (d) (i)-(viii).

(iii) Demonstrate ability to use all types of collimators, and to boresight gunsights.

(b) TRAINING.—Demonstrate ability to train less experienced men in the adjustment and repair of optical equipment.

(c) INSPECTION.—Demonstrate ability to inspect optical instruments, to recognize defects, and to determine the correct remedies for removing the defects.

(d) RECORDS.—Demonstrate ability to maintain logs and other records on work done in the optical shop.

(e) D-5206.103 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) OPTICAL INSTRUMENTS.—Have a detailed knowledge of the location and use of all types of optical instruments for which responsible under (3) (A) (a) above, and the names and functions of the principal parts.

(b) OPTICAL SYSTEMS.—Have a detailed knowledge of the construction and operating principles of all types of optical systems found in the equipment for which responsible under (3) (A) (a) above.

(c) SEALING AND GASSING.—Have a detailed knowledge of the principles and methods of sealing and gassing optical instruments.

(d) OPTICAL FILMING.—Have a general knowledge of the principles and methods of optical filming.

(e) SUPPLIES.—Have a thorough knowledge of parts catalogues and of procurement procedures for ordering stocks of parts and supplies.

(f) PUBLICATIONS.—Have a thorough working knowledge of all applicable Bureau of Ordnance pamphlets, sketches, and drawings. Know where they are obtained, where kept on board ship, and the responsibility for them.

(g) D-5206.103 (2) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Successfully complete the course at an Advanced Optical School in the second specialty selected under (3) (A) (a) above; or in the case of a candidate with outstanding ability who does not have an opportunity to attend the school, satisfy the commanding officer that the candidate has achieved a comparable degree of competence in the second specialty selected.

(4) CHIEF SPECIAL ARTIFICER O.

(A) PRACTICAL FACTORS.

(a) OVERHAUL.—Demonstrate thorough proficiency in the specialties selected

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under (2) (A) (b) and (3) (A) (a), and, in addition, demonstrate proficiency in a third specialty as listed under (2) (A) (b).

(b) SUPERVISION.—Demonstrate ability to supervise a division of an optical shop including the instruction and assignment of men, and maintenance of an adequate stock of spare parts and supplies. Be able to supervise other precision repair work as required, such as typewriter repair or watch repair.

(c) PLANNING.—Demonstrate ability to plan the repair work to be done on the basis of inspection reports and time and facilities available.

(d) D-5206.103 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) OPTICAL INSTRUMENTS.—Have a thorough knowledge of the location on board ship and the use of all types of naval optical instruments including special apparatus used in the optical shop.

(b) OPTICAL SYSTEMS.—Have a thorough knowledge of the construction and principles of operation of all types of optical systems.

(c) SUPPLIES.—Have a thorough knowledge of procurement procedures, allowance lists, catalogues, etc., and of prospective needs for spare parts and supplies for own shop. Know how to obtain and care for Title B items and the responsibility for them.

(d) D-5206.103 (3) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Successfully complete the course at an Advanced Optical School in the third specialty selected under (4) (A) (a) above, or in the case of a candidate with outstanding ability who does not have an opportunity to attend the school, satisfy the commanding officer that the candidate has achieved a comparable degree of competence in the third specialty selected.

D-5206.11. Painters.

(1) PAINTER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) SURFACE PREPARATION.—Demonstrate ability to prepare surfaces for painting and varnishing. Be able to clean and strip surfaces and to use a painter's torch properly.

(c) PAINT PREPARATION.—Demonstrate ability to select, mix, match, thin, and strain paints and primers.

(d) PAINTING.—Demonstrate ability to apply paint using a brush so that surface is smoothed out to a thin, even coat, with a minimum of streaks and brush marks.

(e) EQUIPMENT.—Demonstrate ability to care for and use painting equipment, including kettles, brushes, masks, and torches.

(f) SAFETY PRECAUTIONS.—Demonstrate ability to follow safety precautions in the use of paint equipment and in stowage of paints and paint removers.

(g) FIRST AID.—Demonstrate ability to render artificial resuscitation.

(h) FIRE EXTINGUISHERS.—Demonstrate ability to inspect, test, and fill all shipboard type of portable fire extinguishers.

(B) EXAMINATION SUBJECTS.

(a) MATERIALS.—Know the names, composition, and physical properties of paints, primers, varnishes, thinners, driers, and removers used in shipboard paintings; know the purpose for which such materials are used, procedures for mixing and thinning, and care after being opened, mixed, and partially used.

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(b) COLORS.—Have a knowledge of basic color pigments, including natural earth colors, chemical colors, and blacks.

(c) EQUIPMENT.—Know the most suitable type brushes for general work on board ship. Know the proper method of brushing, including "laying on" and "laying off." Know the purposes and uses of masks and protective clothing. Have a working knowledge of the operation of painter's torches. Have an elementary knowledge of wet and dry sandblasting and paint spraying equipment.

(d) BOATS.—Know boat nomenclature and types of naval boats.

(e) TANKS.—Know the location of bottoms, feed and fuel tanks, fresh water tanks, peak tanks, and cofferdams in own ship.

(f) REGULATIONS.—Know the current regulations and instructions with regard to the stowage of paints and varnishes and the safety and fire precautions to be observed.

(g) STANDARD MARKINGS.—Know the standard Navy system for marking pipes and gas containers.

(h) D-5203.

(2) PAINTER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) SURFACE PREPARATION.—Demonstrate ability to treat surfaces chemically and to use sand blasting equipment. Be able to make minor calking repairs.

(b) PAINTING.—Demonstrate thorough competence in applying paints, primers, varnishes, stains, and enamels by brush. Be able to use a spray gun.

(c) TINTS AND COLORS.—Demonstrate ability to use tints and to mix colors.

(d) PAINT ESTIMATES.—Demonstrate ability to estimate paint required for a given job.

(e) EQUIPMENT.—Demonstrate ability to care for and use properly all painting equipment including spray guns, sand blasting equipment, and all accessories.

(f) LETTERING.—Demonstrate ability to put lettering and insignia on surfaces.

(g) WATERTIGHT INTEGRITY.—Demonstrate ability to test watertight doors, ports, and hatches.

(h) D-5206.11 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) MATERIALS.—Knowledge of the composition and uses of anti-corrosive and anti-fouling paints. Be familiar with all special paints used on ships.

(b) DRYING TIME.—Know the drying time for different types of paints and varnishes.

(c) CAMOUFLAGE.—Have a working knowledge of the principles and techniques of camouflage.

(d) CHEMICAL TREATMENT.—Have a working knowledge of chemical treatment for surfaces of vessels.

(e) EQUIPMENT.—Have a working knowledge of the construction and purpose of spray gun, sand blasting equipment, and accessories.

(f) TEMPERATURE.—Have a knowledge of the proper working temperatures used when applying paints on surfaces.

(g) SCAFFOLDING.—Have a working knowledge of the construction of scaffolding and rigging and the safety factors involved.

(h) DRAINAGE SYSTEMS.—Have a working knowledge of the drainage systems used aboard ship.

(i) INSTRUCTIONS.—Know the current instructions for painting.

(j) D-5206.11 (1) (B).

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(3) PAINTER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) PAINTING.—Demonstrate thorough competence in applying paint with a spray gun.

(b) SUPERVISION AND TRAINING.—Demonstrate ability to supervise and train subordinates in all phases of ship painting.

(c) LETTERING.—Be able to do advanced lettering and insignia painting. Be able to apply decalcomanias.

(d) D-5206.11 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) MATERIALS.—Have a working knowledge of the standard formulas and specifications as published in Appendix 6, General Specifications for Building Vessels of U. S. Navy. Know the proper methods to be observed for the preservation of metal, wood, and other surfaces.

(b) VENTILATION.—Know the arrangement of the ventilating system in own ship.

(c) DRYDOCK.—Know the steps preparatory to placing a ship in drydock. Have a working knowledge of the duties of a first lieutenant when the ship is in drydock and preparatory to flooding the dock.

(d) D-5206.11 (2) (B).

(4) CHIEF PAINTER.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to organize and direct the operations of a paint shop. Be able to interpret and explain bulletins and technical notes issued for camouflaging and painting of naval vessels.

(b) BILLS OF MATERIAL.—Demonstrate ability to make out bills of material, and estimate a large painting job in time, material, and cost.

(c) STOCK AND STOWAGE.—Demonstrate ability to order stock and maintain a stock room, including proper stowage of paints.

(d) D-5206.11 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) MATERIALS.—Have a general knowledge of Appendix 6, General Specifications for Building Vessels of the U. S. Navy.

(b) DAMAGE CONTROL.—Know the action to be taken by the petty officer in charge of damage control repair party.

(c) D-5206.11 (3) (B).

D-5206.12. Telegraphers.

(1) TELEGRAPHER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) OPERATION.—Demonstrate ability to start, stop, regulate, and operate a manual teletypewriter, making necessary operating adjustments and observing all safety precautions.

(c) WATCH STANDING.—Demonstrate ability to qualify as a watch stander on a 20 w.p.m, teletypewriter circuit OR 11 w.p.m. Morse telegraphy circuit.

(d) LOGS.—Demonstrate ability to keep traffic, circuit failure, and other required logs.

(e) LUBRICATION AND MAINTENANCE.—Demonstrate ability to keep own teletypewriter properly lubricated. Demonstrate ability to clean the

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teletypewriter, to change ribbons, paper, and tape, and to detect mechanical defects requiring adjustment or repair.

(f) COMMUNICATIONS.—Demonstrate ability to use properly prosigns and operating signals in handling traffic.

(B) EXAMINATION SUBJECTS.

(a) OPERATION.—Qualify in touch teletypewriting OR Morse telegraphy in accordance with the standard teste given below.

(b) TELETYPEWRITER.—Working knowledge of the uses, lubrication, and maintenance of the manual teletypewriter. Familiarity with the various teletypewriter circuits into which own teletypewriter may be tied.

(c) COMMUNICATIONS PROCEDURE.—Working knowledge of naval communications procedures as set forth in Naval Communications Instructions. Knowledge of message forms, component parte of messages, and prosigns, as used in both teletypewriter and radio communications procedures.

(d) SECURITY.—Know the principles of, and requirements for, maintenance of communication security.

(e) D-5203.

(2) TELEGRAPHER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) OPERATION.—Demonstrate outstanding ability in the operation of a manual teletypewriter. Demonstrate working knowledge of automatic teletypewriters.

(b) WATCH STANDING.—Demonstrate ability to qualify as a watch stander on 25 w.p.m. teletypewriter circuit OR 13 w.p.m. Morse telegraphy circuit.

(c) TAPE.—Demonstrate ability to read perforated tape.

(d) TRAFFIC.—Demonstrate ability to route traffic to and from own station.

(e) REPAIRS.—Demonstrate ability to make minor manual teletypewriter repairs.

(f) D-5206.12 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) OPERATION.—Qualify in touch teletypewriting OR Morse telegraphy in accordance with the standard test given below.

(b) TELETYPEWRITER.—Working knowledge of the characteristics, operation, adjustment, and maintenance of the various types of teletypewriters located at own station.

(c) COMMUNICATIONS PROCEDURE.—Detailed knowledge of naval communications procedures as set forth in Naval Communications Instructions.

(d) ELECTRICITY.—Knowledge of elementary electricity. Know how to solve simple problems in A. C. and D. C. current.

(e) COMMERCIAL TRAFFIC.—Working knowledge of commercial traffic instructions and international procedure.

(f) D-5206.12 (1) (B).

(3) TELEGRAPHER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take charge of a watch. Demonstrate ability to handle traffic as a supervisor. Demonstrate ability to supervise and train other operators.

(b) OPERATION.—Demonstrate ability to operate the various types of manual and automatic teletypewriters at own station. Demonstrate ability to stand a watch on a 40 w.p.m, teletypewriter circuit and, IN ADDITION, be able

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to qualify as a watch stander on a 15 w.p.m. Morse telegraphy circuit, (See (5) below.)

(c) SWITCHBOARD.—Demonstrate ability to operate teletypewriter switchboard, and to make patches in the circuit.

(d) INSTALLATION OF EQUIPMENT—Demonstrate ability to install teletypewriter equipment and to test circuits after installation.

(e) REPAIRS.—Demonstrate ability to lubricate and to make repairs and adjustments to the various types of teletypewriters located at own station, installing parts as needed and using special tools required.

(f) LOGS AND REPORTS.—Demonstrate ability to compile daily log and other reports as required.

(g) D-5206.12 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) OPERATION.—Qualify in BOTH touch teletypewriting and Morse telegraphy in accordance with the standard tests given below. (See (5), (6),

and (7) below.)

(b) SUPERVISION.—Know how to take charge of a naval communications teletypewriter and telegraph office, and demonstrate a complete knowledge of routing of traffic.

(c) COMMERCIAL PRACTICES.—Thorough working knowledge of commercial accounting and abstracting as used by the Navy.

(d) ELECTRICITY.—Know how to draw schematic wiring diagrams of telegraph and teletypewriter circuits and be able to trace out circuits from detailed wiring diagrams. Thorough knowledge of characteristics of A. C. and D. C. current. Know how to read test meters and determine polarity of circuits.

(e) D-5206.12 (2) (B).

(4) CHIEF TELEGRAPHER.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise a naval communications teletypewriter and telegraph office. Demonstrate ability to stand watch as junior officer-in-charge.

(b) OPERATION.—Demonstrate ability to operate all types of teletypewriters. Demonstrate ability to stand a watch on a 40 w.p.m, teletypewriter circuit and, IN ADDITION, be able to qualify as a watch stander on a 15 w.p.m. Morse telegraphy circuit. (See (5) below.)

(c) TELEGRAPHY CIRCUIT.—Demonstrate ability to rig up a Morse telegraphy circuit.

(d) REPAIRS.—Demonstrate ability to supervise the assembly, disassembly, and repair of teletypewriters.

(e) D-5206.12 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) OPERATION.—Qualify in BOTH touch teletypewriting and Morse telegraphy in accordance with the standard tests given below. (See (5), (6), and (7) below.)

(b) MAINTENANCE.—Knowledge of the maintenance of all standard types of telegraph and teletypewriter transmitters and receivers.

(c) TRAFFIC CONTROL.—Thorough knowledge of precedence classification of traffic, clearing of traffic, and maintenance of circuit discipline within the net.

(d) ELECTRICITY.—Familiarity with the fundamental principles of the operation and maintenance of A. C. and D. C. motors and generators.

(e) COMMUNICATIONS SYSTEMS.—Thorough knowledge of the organiza-

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tion, functions, and facilities of the Navy, Army, Coast Guard, and U. S. commercial communications systems. Familiarity with Federal Communications Commission rules and regulations. Thorough knowledge of naval radio circuits at own station.

(f) TELEGRAPHY.—Thorough knowledge of regulations governing Morse telegraphy circuits at own station.

(g) CORRESPONDENCE AND SUPPLIES.—General knowledge of naval correspondence, filing system, and procedure for the requisitioning and maintenance of supplies.

(h) D-5206.12 (3) (B).

(5) WAIVER OF MORSE TELEGRAPHY REQUIREMENTS.

Commanding officers may waive the Morse requirements for telegrapher, first class, and chief telegrapher when the volume of traffic at a large communications office is such as to justify the assignment of a telegrapher to teletypewriter traffic exclusively.

(6) TELETYPEWRITER OPERATING TESTS.—(Time limit—6 minutes to complete test.)

(A) TELEGRAPHER, THIRD CLASS.—Transmit a file of 3 messages in Class A form, containing a total of 600 characters. The text of two messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(B) TELEGRAPHER, SECOND CLASS.—Transmit a file of 4 messages in Class A form, containing a total of 750 characters. The text of three messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(C) TELEGRAPHERS, FIRST CLASS AND CHIEF.—Transmit a file of 5 messages in Class A form, each file containing a total of 1200 characters. The text of four messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(7) MORSE OPERATING TESTS.—(Time limit,—8 minutes each for transmitting and receiving tests.)

(A) TELEGRAPHER, THIRD CLASS.—Transmit a file of 3 messages and receive a file of 3 messages in Class A form, each file containing a total of 425 characters. The text of two messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(B) TELEGRAPHER, SECOND CLASS.—Transmit a file of 4 messages and receive a file of 4 messages in Class A form, each file containing a total of 525 characters. The text of three messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(C) TELEGRAPHER, FIRST CLASS AND CHIEF.—Transmit a file of 5 messages and receive a file of 5 messages in Class A form, each file containing a total of 600 characters. The text of four messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.

(8) STANDARD TEST PROCEDURE.—The following standard procedure shall be used in giving tests under paragraphs (6) and (7) above:

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(A) MESSAGES.—Messages shall be approximately the same length, heading containing about 30% and the text about 70% of the total number of characters. A total of 5 errors (incorrect or omitted characters) will be permitted in transmitting in any complete test. One complete rehearsal immediately preceding the official test is permissible. The messages used for the official test must differ from those used for the rehearsal, and must be unknown to the applicant before the test starts.

(B) TIME LIMITS.—Time limits for the complete tests shall include "servicing" each message by endorsing thereon the time of transmission or reception, circuit used, and the operator's sign. All errors must be corrected.

(C) RECEIVING.—Receiving (Morse tests) shall be done on a typewriter, either standard or telegraphic.

D-5207. ARTIFICER BRANCH, ENGINE ROOM FORCE.

D-5207.01. Firemen.

(1) FIREMAN, SECOND CLASS.

A fireman, second class, within a reasonable time on board ship, should be expected to know the names of the captain, executive officer, heads of the departments, engineering division officers, and other principal officers in own ship; the duties that he is expected to perform at general quarters and emergency drills, and be able to recognize the signals for these drills. He should know the type, location, and general features of boilers and main engines in own ship, and the safety precautions to be observed in entering engineering spaces. He should know the location of boats, guns, bridges, officers' quarters, chief petty officers' quarters, principal compartments, fireroom, engine room, and steering engine room. He should have a detailed knowledge of own part of the ship including the location of all fire plugs, and other fire apparatus.

(2) FIREMAN, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate ability to stand under way and anchor watches in the engineering spaces to which assigned.

(b) TOOLS.—Demonstrate ability to use effectively tools commonly employed in engine room and fireroom routine maintenance.

(c) AUXILIARIES.—Demonstrate ability to locate and identify Engineering Department auxiliaries in own ship.

(d) MOTORS, PUMPS, AND OTHER AUXILIARIES.—Demonstrate ability to start and stop all auxiliary machinery located in the engineering spaces to which assigned for watch standing.

(e) MINOR REPAIRS.—Demonstrate ability to pack stuffing boxes and stop leaks in small valves.

(f) D-5207.01 (1).

(B) EXAMINATION SUBJECTS.

(a) ENGINEERING DEPARTMENT.—General knowledge of the watch bill and organization of the Engineering Department aboard own ship.

(b) LOG.—Know how to make entries in fireroom or engine room auxiliary log.

(c) WATER AND STEAM CIRCULATION.—Know the path of steam from boiler to the engine and back to the boiler.

(d) FIRING.—General knowledge of lighting off, firing, and securing an oil-fired boiler.

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(e) BOILER FITTINGS.—Name internal and external fittings of a boiler and know the functions of each fitting.

(f) TESTS.—Know what tests of feed water are made and the reason for each test.

(g) PIPE MARKINGS.—Know the standard pipe markings used in the Navy.

(h) TOOL REPAIR.—Working knowledge of the sharpening, maintenance, and repair required for hand tools commonly employed in engine room and fireroom routine maintenance.

(i) LUBRICATION.—General knowledge of lubrication systems and the use of lubricating oils and greases.

(j) WATER TENDING.—Know how to tend water on boiler being steamed for auxiliary purposes.

(k) SAFETY PRECAUTIONS.—Know the safety precautions and emergency procedures pertaining to the station to which attached.

(l) FIRE FIGHTING EQUIPMENT.—Know how to use installed fire fighting equipment and have a general knowledge of fire fighting procedure aboard own ship.

(m) D-5203.

D-5207.02. Machinist's Mates.

(1) MACHINIST'S MATE, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) AUXILIARIES.—Demonstrate ability to operate and make minor repairs to the principal auxiliary machinery.

(c) HAND TOOLS.—Demonstrate ability to use all hand tools commonly employed in overhauling machinery and to use measuring instruments including a vernier, micrometer, and inside and outside calipers.

(d) MACHINE TOOLS.—Demonstrate ability to perform simple operations on a lathe.

(e) LUBRICATION.—Demonstrate ability to lubricate engine room machinery in accordance with lubrication charts.

(f) PIPE FITTING.—Demonstrate ability to cut threads, fit pipes, bend pipes, make joints in pipe lines, and to remove and replace insulation.

(g) METALS.—Demonstrate ability to identify stock metals by standard markings.

(h) BLUEPRINTS AND DRAWINGS.—Demonstrate ability to read simple blueprints, mechanical drawings, and sketches.

(i) D-5207.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) ROUTINE.—Have a general knowledge of the operating routine at sea and in port and know the responsibilities involved in standing watch and keeping logs.

(b) AUXILIARIES.—Know the location and function of auxiliary machines such as pumps, condensers, compressors, refrigerators, and winches, and know the principles governing their operation.

(c) LUBRICATION SYSTEMS.—Have a general knowledge of the function and design of lubrication systems.

(d) HEAT EXCHANGING SYSTEMS.—Have a general knowledge of the function and design of heat exchanging systems.

(e) EMERGENCY PROCEDURES.—Have an elementary knowledge of the emergency measures to be taken in the event of a casualty to engine room machinery to prevent further damage and risk to personnel.

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(f) SAFETY PRECAUTIONS.—Know the safety precautions to be observed when working on machinery and electrical equipment, and when moving or lifting heavy objects.

(g) RESCUE BREATHING APPARATUS.—Have a thorough knowledge of the use of the rescue breathing apparatus.

(h) D-5203.

(i) D-5207.01 (2) (B).

(2) MACHINIST'S MATE, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) AUXILIARIES.—Demonstrate ability to operate and to make all routine adjustments and repairs to all auxiliary machinery.

(b) MAIN ENGINES.—Demonstrate ability to operate and to assist in making repairs to main propulsion engines.

(c) MACHINE TOOLS.—Demonstrate ability to perform simple operations on all machine tools commonly found on board ship.

(d) SPECIAL INSTRUMENTS.—Demonstrate ability to make accurate readings of instruments such as tachometers, thermometers, pressure gages, and pressure indicators.

(e) DRAWING.—Demonstrate ability to make accurate sketches of machine parts.

(f) DAMAGE CONTROL.—Demonstrate ability to assist repair party in maintaining watertight integrity.

(g) D-5207.02 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) AUXILIARIES.—Have a working knowledge of the construction, operation, and repair of all auxiliary machinery.

(b) MAIN ENGINES.-—Have a general knowledge of the principles governing the operation of main propulsion steam turbines and steam reciprocating engines. Know the procedures for starting, stopping, and securing.

(c) EMERGENCY PROCEDURES.—Know thoroughly the emergency measures to be taken in the event of a casualty to main engines or auxiliary machinery to prevent further damage and risk to personnel.

(d) DRAINAGE SYSTEMS.—Have a general knowledge of drainage systems, fire main, and flushing systems.

(e) ENGINEERING TERMS.—Know the meaning of all the common engineering and electrical terms.

(f) ELECTRICITY.—Have an elementary knowledge of the principles governing the operation of electric starting motors, generator regulators, circuit breakers, etc.

(g) SAFETY PRECAUTIONS.—Know the safety precautions to be observed when taking on fuel.

(h) D-5207.02 (1) (B).

(3) MACHINIST'S MATE, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise all activities of machinist's mates and to train less experienced men.

(b) AUXILIARIES.—Demonstrate ability to make a major overhaul of any auxiliary machinery.

(c) MAIN ENGINES.—Demonstrate ability to make major repairs to a main propulsion steam engine.

(d) MAINTENANCE.—Demonstrate ability to make all prescribed routine

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tests and checks, and to use the Manual of Engineering Instructions and the Bureau of Ships Manual.

(e) MACHINE TOOLS.—Demonstrate ability to prepare specifications for and turn out a replacement part requiring moderate skill in the use of machine tools.

(f) BLUEPRINTS.—Demonstrate ability to read all Engineering Department blueprints.

(g) DAMAGE CONTROL.—Demonstrate ability to take charge of a damage control repair party.

(h) D-5207.02 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) AUXILIARIES.—Have a thorough knowledge of the construction, operation, maintenance, and repair of all auxiliary machinery.

(b) MAIN ENGINES.—Have a thorough knowledge of the construction, operation, maintenance, and repair of main propulsion steam engines.

(c) DAMAGE CONTROL.—Know the damage control organization of own ship.

(d) PUBLICATIONS.—Be thoroughly familiar with applicable chapters of the Manual of Engineering Instructions and the Bureau of Ships Manual.

(e) SUPPLIES.—Have a thorough knowledge of packings, greases, oils, polishes, cleaning materials, and other engine room supplies.

(f) D-5207.02 (2) (B).

(4) CHIEF MACHINIST'S MATE.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take complete charge of engine room on steam driven ship.

(b) MAINTENANCE AND REPAIR.—Demonstrate ability to supervise all maintenance and repair to main propulsion steam engines and auxiliary machinery

(c) ENGINEERING RECORDS.—Demonstrate ability to keep engineering records, including machinery history, maintenance and repair records, machinery index, and boiler record sheets. Be able to prepare a navy yard or tender work request, and request for alteration.

(d) DAMAGE CONTROL.—Demonstrate ability to organize a damage control repair party.

(e) D-5207.02 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) SUPERVISION.—Have a thorough knowledge of the duties of the engineering officer of the watch.

(b) MAINTENANCE AND REPAIR.—Know the factors governing plant efficiency, the causes of poor performance, and appropriate remedies for the latter.

(c) SPARE PARTS.—Know the procedure for procuring spare parts and know how to stow them correctly.

(d) FIREROOM EQUIPMENT.—Have a general knowledge of the principles of operation of fireroom equipment.

(e) REPORTS.—List the reports covering engine failure, damage, defects, etc., that are to be submitted to the Bureau of Ships.

(f) D-5207.02 (3) (B).

D-5207.021. Machinist's Mates G—(Industrial Gas Generating Mechanics).

Note.This rating applies to personnel engaged in the generation, stowage, and

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transfer of the following industrial gases: oxygen, acetylene, carbon dioxide, nitrogen, hydrogen, and helium.

(1) MACHINIST'S MATE G, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) WATCH STANDING.—Demonstrate ability to operate, make minor repairs to, and stand watch on industrial gas generating, stowage, and transfer equipment to which assigned.

(c) CYLINDERS AND VALVES.—Demonstrate ability to clean, dry, and paint cylinders, to retap valve connections, and to disassemble and assemble valves, replacing necessary parts.

(d) TOOLS.—Demonstrate ability to use and care for all hand tools commonly used in the maintenance of gas generating, stowage, and transfer equipment to which assigned and of related cylinders and valves.

(e) PIPE FITTING.—Demonstrate ability to cut threads and fit pipes, and to make joints in pipe lines.

(f) COMPRESSORS AND MOTORS.—Demonstrate ability to operate and make minor repairs to compressors and motors on equipment to which assigned.

(g) WORKING DRAWINGS.—Demonstrate ability to read simple blueprints and working sketches of machine parts.

(h) D-5207.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) PLANT OPERATION.—Know the operating routine of the equipment to which assigned and know how to obtain and enter correct data for the operating log.

(b) SAFETY PRECAUTIONS.—Know the safety precautions to be observed in the operation of gas generating, stowage, and transfer equipment to which assigned, and know the basic safety precautions involved in the stowage and handling of other industrial gases.

(c) INDUSTRIAL GASES.—Know the uses and characteristics of industrial gases and their identification by standard markings on containers.

(d) PARTS AND FITTINGS.—Know the names and uses of and identify principal parts and fittings of industrial gas generating equipment to which assigned.

(e) D-5207.01 (2) (B).

(f) D-5203.

(C) SCHOOL QUALIFICATIONS.

(a) Satisfactory completion of approved course of instruction on industrial gas generating, stowage, and transfer equipment, or equivalent operating experience.

(2) MACHINIST'S MATE G, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate proficiency in the operation and maintenance of industrial gas generating, stowage, and transfer equipment to which assigned, and ability to take charge of watch as required.

(b) ANALYSIS.—Demonstrate ability to make simple chemical analysis of raw materials, intermediate products, and final products as might be required in the operation of the plant to which assigned.

(c) CYLINDERS AND VALVES.—Demonstrate ability to inspect used cyl-

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inders and valves to determine necessity for repair or suitability for recharging, and ability to differentiate between cylinders for various types of gases. Demonstrate ability to repair or replace defective valve parts.

(d) PIPE FITTING.—Demonstrate ability in special pipe-fitting techniques used on equipment to which assigned, such as making high-pressure threaded connections, bending and fitting high- and low-pressure copper tubing, and fitting of compressed gas manifolds.

(e) COMPRESSORS.—Demonstrate ability to make routine overhauls and repairs of compressors on equipment to which assigned.

(f) D-5207.021 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) PLANT OPERATION.—Know detailed flow diagram of plant and basic operating principles of all parts of equipment to which assigned. Know how to recognize deviations from normal operation as shown by the operating log.

(b) SAFETY PRECAUTIONS.—Know in detail the safety precautions to be observed in the operation and maintenance of gas generating, stowage, and transfer equipment to which assigned.

(c) PARTS AND FITTINGS.—Know the construction and materials and be able to identify all operating parts and fittings of gas generating equipment to which assigned.

(d) CYLINDERS AND VALVES.—Know the construction, materials, and test specifications for different types of compressed gas cylinders and valves.

(e) D-5207.021 (1) (B).

(3) MACHINIST'S MATE G, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) PLANT INSTALLATION.—Demonstrate ability to set up industrial gas generating, stowage, and transfer equipment to which assigned, following manuals of instruction. Demonstrate ability to secure such equipment for long periods of inoperation or for change of location.

(b) WATCH STANDING.—Demonstrate ability to supervise the operation and maintenance, and to perform complete repair and overhauling of industrial gas equipment to which assigned.

(c) CYLINDERS AND VALVES.—Demonstrate ability to supervise the inspection, cleaning, drying, painting, and general repair of compressed gas cylinders and valves.

(d) PIPE FITTING.—Demonstrate ability to supervise high-pressure pipe fitting on industrial gas equipment.

(e) GAGES.—Demonstrate ability to test, repair, adjust, and recalibrate high-pressure and low-pressure gages for air and industrial gases.

(f) COMPRESSORS AND MOTORS.—Demonstrate ability to supervise and perform major overhauls on compressors and routine overhauls on the electric, gasoline, or diesel power units of equipment to which assigned.

(g) D-5207.021 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) PLANT OPERATION.—Know detailed functions and normal operating conditions, such as temperatures, pressures, revolutions, and flow rates, of all parts of equipment to which assigned. Know how to recognize deviations from normal operation as shown by the operating log and know their probable causes and remedies.

(b) SAFETY PRECAUTIONS.—Know in detail the safety precautions to be observed in the selection of a site, setting up, operation, overhaul, and securing

--1658--

of gas generating, stowage, and transfer equipment to which assigned. Know the safety precautions to be observed in the generation, stowage, transfer, and use of other industrial gases.

(c) INDUSTRIAL GASES.—Know the flow diagrams, principal parts, and materials of construction, and operating conditions of principal types of industrial gas generating, stowage, and transfer equipment.

(d) D-5207.021 (2) (B).

(4) CHIEF MACHINIST'S MATE G.

(A) PRACTICAL FACTORS.

(a) PLANT OPERATION.—Demonstrate ability to supervise and train personnel engaged in the installation, operation, complete overhaul, and securing of gas generating, stowage, and transfer equipment to which assigned.

(b) D-5207.021 (3) (A).

(B) EXAMINATION FACTORS.

(a) PLANT OPERATION.—Know the effects upon the performance of equipment to which assigned of atmospheric temperature, humidity, barometric pressure, etc., at different geographical locations, and know the pertinent modifications of the equipment necessary for efficient plant operation under different conditions.

(b) PLANT REQUIREMENTS.—Know the power, fuel, water, and other consumable material requirements for the operation of principal types of gas generating equipment.

(c) PARTS AND SUPPLIES.—Know the use of allowance lists of spare parts, tools, and consumable materials for equipment to which assigned, and know the procedures for maintaining an inventory and obtaining replacement parts and supplies.

(d) D-5207.021 (3) (B).

D-5207.022. Machinist's Mates R—(Refrigeration Mechanics).

(1) MACHINIST'S MATE R, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) REFRIGERATING AND AIR CONDITIONING EQUIPMENT.— Demonstrate ability to operate and make minor repairs to refrigerating and air conditioning equipment.

(c) HAND TOOLS.—Demonstrate ability to use all hand tools commonly employed in the overhaul of refrigerating and air conditioning machinery.

(d) PIPE FITTING.—Demonstrate ability to silver solder valves and joints in pipe lines, to use compression fittings, and to remove and replace insulation.

(e) BLUEPRINTS AND DRAWINGS.—Demonstrate ability to read simple blueprints, mechanical drawings, and sketches.

(f) REFRIGERANTS.—Demonstrate ability to identify refrigerant containers by the markings.

(g) D-5207.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) ROUTINE.—Have a general knowledge of the operating routine at sea and in port, and know the responsibilities involved in standing watch and keeping logs.

(b) REFRIGERATING EQUIPMENT.—Know the principles of the construction and operation of the common types of refrigerating plants.

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(c) AIR CONDITIONING EQUIPMENT.—Know the principles of the construction and operation of the common types of air conditioning units.

(d) REFRIGERANTS.—Know the characteristics of Freon 12.

(e) BASIC PRINCIPLES.—Understand the basic principles of radiation, convection, and conduction, and know the units of heat.

(f) SAFETY PRECAUTIONS.—Know the safety precautions to be observed in operating and servicing refrigerating and air conditioning equipment.

(g) FIRST AID.—Know the emergency treatment of persons exposed to refrigerants in their liquid and gaseous states.

(h) D-5203.

(i) D-5207.01 (2) (B).

(2) MACHINIST'S MATE R, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) MAINTENANCE AND REPAIR.—Demonstrate ability in all routine maintenance and repair of large refrigerating and air conditioning installations. Also demonstrate ability to assist in the repair of other types of mechanical equipment.

(b) RECHARGING.—Demonstrate ability to recharge refrigerating system with oil and Freon, to check for non-condensable gases, and to evacuate and pump down refrigerant pipe systems.

(c) CONTROLS.—Demonstrate ability to adjust pressure and temperature controls, and thermostatic expansion and solenoid valves.

(d) DRAWINGS.—Demonstrate ability to make accurate sketches of machine parts.

(e) DAMAGE CONTROL.—Demonstrate ability to assist repair party in maintaining watertight integrity.

(f) D-5207.022 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) TESTING.—Know the methods of testing refrigerating systems for leaks, including the use of Prest-O-Lite and Halide leak detectors.

(b) SAFETY PRECAUTIONS.—Know the safety precautions to be observed in testing for leaks in magazine spaces.

(c) MACHINE TOOLS.—Know the type of work performed on a lathe, grinder, drill press, milling machine, and shaper.

(d) REFRIGERATION CYCLE.—Know the details of a mechanical refrigeration compression-expansion cycle.

(e) ELECTRICITY.—Have a general understanding of the electrical principles governing the operation of electric motors and electric control devices.

(f) PIPE MARKINGS.—Have a thorough knowledge of the standard pipe markings.

(g) D-5207.022 (1) (B).

(3) MACHINIST'S MATE R, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise all activities of machinist's mates R and to train less experienced men.

(b) OVERHAUL.—Demonstrate ability to make a major overhaul of large refrigerating and air conditioning installations.

(c) INSTALLATION.—Demonstrate ability to install insulating materials, thermometers, gages, valves, etc., used in refrigerating and air conditioning units.

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(d) MACHINE TOOLS.—Demonstrate ability to perform simple operations on a lathe, drill press, and bench grinder.

(e) DAMAGE CONTROL.—Demonstrate ability to take charge of a damage control repair party.

(f) WATCH STANDING.—Demonstrate a general understanding of the operation of shipboard machinery by operating equipment which does not form an integral part of the refrigerating and air conditioning system.

(g) D-5207.022 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) REFRIGERATING AND AIR CONDITIONING EQUIPMENT.—Have a thorough knowledge of the construction, operation, maintenance, and repair of the common types of large refrigerating and air conditioning installations, and know the advantages and disadvantages of each.

(b) AUXILIARY MACHINERY.—Have a general understanding of the operation of and functions performed by the principal auxiliary machines on own ship.

(c) D-5207.022 (2) (B).

(4) CHIEF MACHINIST'S MATE R.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take complete charge of the operation, maintenance, and repair of any refrigerating and air conditioning installation.

(b) D-5207.022 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) REFRIGERATING.—Be able to compute compressor capacity, area of cooling surfaces of coils, volume of refrigerating spaces, and power needs.

(b) AIR CONDITIONING.—Have a thorough knowledge of the principles of air conditioning, including humidity control, and be able to compute air conditioning needs and plant capacity.

(c) SPARE PARTS.—Know the procedure for procuring spare parts and know how to stow them correctly.

(d) D-5207.022 (3) (B).

D-5207.023. Machinist's Mates S—(Shop Machinists).

(1) MACHINIST'S MATE S, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) MACHINE TOOLS.—Demonstrate ability to operate a lathe for rough turning and to operate a drill press, bench grinder, milling machine, and power hack saw.

(c) HAND TOOLS.—Demonstrate ability to use correctly all hand tools employed in a machine shop.

(d) MEASURING INSTRUMENTS.—Demonstrate ability to use precision measuring instruments including verniers, micrometers, and inside and outside calipers.

(e) METALS.—Demonstrate ability to identify stock metals by standard markings.

(f) VALVES.—Demonstrate ability to overhaul simple valves.

(g) BLUEPRINTS AND DRAWINGS.—Demonstrate ability to read simple blueprints and mechanical drawings and sketches.

(h) D-5207.01 (2) (A).

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(B) EXAMINATION SUBJECTS.

(a) SHOP ORGANIZATION.—Understand the organization of a machine shop including the procedures for obtaining tools, materials, and metal stock.

(b) MACHINE TOOLS.—Know the types and sizes of the machines in the shop and know the function of collets, chucks, steady rest, and carriage.

(c) SHOP MATHEMATICS.—Be able to make all mathematical computations used in routine machine shop operations.

(d) SAEETY PRECAUTIONS.—Know the safety precautions to be observed when operating machine tools and electrical equipment, and in moving or lifting heavy objects.

(e) D-5203.

(f) D-5207.01 (2) (B).

(2) MACHINIST'S MATE S, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) MACHINE TOOLS.—Demonstrate ability to cut threads and to use taper attachments on lathes. Perform all routine operations on any machine tool in the shop.

(b) DRILLS AND CUTTING TOOLS.—Demonstrate ability to grind drills to correct taper and to grind cutting tools for specific jobs.

(c) MACHINE PARTS.—Demonstrate ability to prepare specifications for and to make simple machine parts.

(d) DRAWINGS.—Demonstrate ability to make accurate sketches of machine parts.

(e) WELDING.—Demonstrate ability to make simple oxyacetylene welds and to use a cutting torch.

(f) DAMAGE CONTROL.—Demonstrate ability to assist repair party in maintaining watertight integrity.

(g) BLUEPRINTS.—Demonstrate ability to read all blueprints, mechanical drawings, and sketches used by machinist's mates.

(h) D-5207.023 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) METALS.—Have a knowledge of the properties of metals and alloys used in making replacement parts, and know how these properties affect cutting speeds and the choice of cutting tools.

(b) AUXILIARIES.—Know the location and function of the principal auxiliary machines.

(c) MAIN ENGINES.—Know the names and functions of the principal parts of the main engines on own ship.

(d) ELECTRICITY.—Have a general understanding of the electrical principles governing the operation of electric motors and electric control devices, both A. C. and D. C.

(e) SHEET METAL FABRICATION.—Have a general knowledge of the fabrication of sheet metal shapes and be able to compute the volume of cubical and cylindrical tanks.

(f) SAEETY PRECAUTIONS.—Know the safety precautions to be observed in welding and grinding.

(g) D-5207.023 (1) (B).

(3) MACHINIST'S MATE S, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise machine tool operations and to instruct less experienced men.

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(b) MACHINE TOOLS.—Demonstrate ability to perform complicated machine tool operations including gear cutting, hobbing, and broaching.

(e) FINISHING CASTINGS.—Demonstrate ability to finish correctly various types of castings.

(d) PORTABLE EQUIPMENT.—Demonstrate ability to set up and operate portable machine tool equipment, including portable boring bars.

(e) MAINTENANCE.—Demonstrate ability to keep all machine tools in good operating condition.

(f) D-5207.023 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) SPECIFICATIONS AND ESTIMATES.—Prepare specifications and estimate time and material required for a major machine shop job.

(b) AUXILIARIES.—Know the functions of all the auxiliary shipboard machines and know their principal parts.

(c) MAIN ENGINES.—Have a general knowledge of the construction and operation of Diesel engines, gasoline engines, and steam engines used to propel naval vessels.

(d) HEAT TREATING.—Have a general understanding of heat treating and the special treatment required for alloys.

(e) PATTERNMAKING.—Have a general understanding of the procedures used in patternmaking.

(f) D-5207.023 (2) (B).

(4) CHIEF MACHINIST'S MATE S.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take complete charge of all machine shop activities.

(b) D-5207.023 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) SUPERVISION.—Have a thorough knowledge of the duties and responsibilities of the engineering officer of the watch.

(b) METAL TESTS.—Know how standard hardness tests are made and what equipment is used.

(c) PUBLICATIONS.—Be able to use the Manual of Engineering Instructions and other applicable engineering publications.

(d) SPARE PARTS.—Know the procedure for procuring spare parts and know the correct methods of stowing them.

(e) D-5207.023 (3) (B).

D-5207.03. Motor Machinist's Mates.

(1) MOTOR MACHINIST'S MATE, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) INTERNAL COMBUSTION ENGINES.—Demonstrate ability to operate and make minor repairs to internal combustion engines.

(c) HAND TOOLS.—Demonstrate ability to use all hand tools commonly employed in engine overhaul and to use measuring instruments including a vernier, micrometer, and inside and outside calipers.

(d) LUBRICATION.—Demonstrate ability to lubricate engine room machinery in accordance with lubrication charts.

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(e) PIPE FITTING.—Demonstrate ability to out threads, fit pipes, make Joints in pipe lines, and to remove and replace insulation.

(f) BLUEPRINTS AND DRAWINGS.—Demonstrate ability to read simple blueprints, mechanical drawings, and sketches.

(g) D-5207.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) ROUTINE.—Have a general knowledge of the operating routine at sea and in port and know the responsibilities involved in standing watch and keeping logs.

(b) INTERNAL COMBUSTION ENGINES.—Know the principles of the construction and operation of two stroke cycle and four stroke cycle Diesel engines and of gasoline engines.

(e) BOAT ENGINES.—Know the procedure in starting, stopping, and securing boat engines.

(d) EMERGENCY PROCEDURES.—Know the emergency measures to be taken in the event of a casualty to a boat engine to prevent further damage and risk to personnel.

(e) OIL.—Know the meaning and significance of viscosity, flash point, and fire point in oil.

(f) LUBRICATION AND FUEL SYSTEMS—Have a general understanding of the function and design of lubrication and fuel systems.

(g) HEAT EXCHANGING SYSTEMS.—Have a general understanding of the function and design of heat exchanging systems.

(h) SAFETY PRECAUTIONS.—Know the safety precautions to be observed when working on machinery, electrical equipment, and boats.

(i) RESCUE BREATHING APPARATUS.—Have a thorough knowledge of the use of the rescue breathing apparatus.

(j) D-5203.

(k) D-5207.01 (2) (B).

(2) MOTOR MACHINIST'S MATE, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) OPERATION.—Demonstrate ability to operate main engines on a vessel propelled by internal combustion engines, including starting, stopping, and securing. Also, demonstrate ability to operate auxiliary engine room machinery.

(b) MAINTENANCE AND REPAIR.—Demonstrate ability in the routine maintenance and repair of main propulsion internal combustion engines and auxiliary engine room machinery.

(c) BOAT ENGINES.—Demonstrate ability to make major repairs to boat engines.

(d) SPECIAL INSTRUMENTS.—Demonstrate ability to make accurate readings of instruments such as tachometers, thermometers, pressure gages, and pressure indicators.

(e) DRAWINGS.—Demonstrate ability to make accurate sketches of machine parts.

(f) DAMAGE CONTROL.—Demonstrate ability to assist repair party in maintaining watertight integrity.

(g) D-5207.03 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) MAIN ENGINES.—Have a thorough understanding of the following:

(i) The functions and inter-relationships of the principal moving parts of a main propulsion internal combustion engine.

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(ii) The remedial and preventive measures to be taken to correct the common types of engine trouble.

(iii) The construction and function of governors, hydraulic couplings, and reduction gears.

(b) EMERGENCY PROCEDURES.—Know the emergency measures to be taken in the event of a casualty to main engines or auxiliary machinery to prevent further damage and risk to personnel.

(c) ENGINEERING TERMS.—Know the meaning of all the common engineering and electrical terms.

(d) ELECTRICITY.—Have a general knowledge of electricity as applied to starting motors, generator regulators, and generators on internal combustion engines.

(e) MACHINE TOOLS.—Know the functions performed by a lathe, grinder, drill press, milling machine, and shaper.

(f) SAFETY PRECAUTIONS.—Know the safety precautions to be followed while taking on fuel.

(g) D-5207.03 (1) (B).

(3) MOTOR MACHINIST'S MATE, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take charge of an engine room watch while under way on a vessel propelled by internal combustion engines and to keep the main engines and engine room auxiliaries operating efficiently. Also demonstrate ability to train less experienced men.

(b) MACHINE TOOLS.—Demonstrate ability to perform simple operations on a lathe, drill press, and bench grinder.

(c) MAINTENANCE AND REPAIR.—Demonstrate ability to make a major overhaul of main propulsion internal combustion engines and auxiliary engine room machinery, to make all prescribed routine tests and checks, and to use the Manual of Engineering Instructions and the Bureau of Ships Manual.

(d) REFRIGERATORS.—Demonstrate ability to make minor repairs to the refrigerating system.

(e) DAMAGE CONTROL.—Demonstrate ability to take charge of damage control repair party.

(f) BLUEPRINTS.—Demonstrate ability to read and understand all blueprints used in the Engineering Department.

(g) D-5207.03 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) MAIN ENGINES.—Have a thorough knowledge of the construction, operation, and maintenance of main propulsion internal combustion engines, including direct drive Diesel, geared drive Diesel, and Diesel-electric engines.

(b) AUXILIARIES.—Have a good knowledge of the construction, operation, and maintenance of auxiliary engine room machinery.

(c) REFRIGERATORS.—Understand the operation of the refrigeration system on own ship, know type of refrigerant used, know how to test for leaks, and know the safety precautions to be observed.

(d) DAMAGE CONTROL.—Know the damage control organization of own ship.

(e) PUBLICATIONS.—Be thoroughly familiar with applicable chapters of the Manual of Engineering Instructions and the Bureau of Ships Manual.

(f) D-5207.03 (2) (B).

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(4) CHIEF MOTOR MACHINIST'S MATE.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take complete charge of engine room on a vessel propelled by internal combustion engines.

(b) MAINTENANCE AND REPAIR.—Demonstrate ability to plan and supervise all maintenance and repair of main propulsion internal combustion engines and all auxiliary engine room machinery.

(c) ENGINEERING RECORDS.—Demonstrate ability to keep engineering records, including machinery history, maintenance and repair records, machinery index, and boiler record sheets. Be able to prepare a navy yard or tender work request, and request for alteration.

(d) DAMAGE CONTROL.—Demonstrate ability to organize a damage control repair party.

(e) D-5207.03 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) SUPERVISION.—Have a thorough knowledge of the duties of the engineering officer of the watch.

(b) MAINTENANCE AND REPAIR.—Have a thorough knowledge of the factors governing plant efficiency, the causes of poor performance, and appropriate remedies for the latter.

(c) SPARE PARTS.—Know the procedure for procuring spare parts and know how to stow them correctly.

(d) REPORTS.—List the reports covering engine failure, damage, defects, etc., that are to be submitted to the Bureau of Ships.

(e) D-5207.03 (3) (B).

D-5207.04. Electrician's Mates.

(1) ELECTRICIAN'S MATE, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) CIRCUITS AND WIRING.—Demonstrate ability to repair open circuits; find and clear grounds; and run wiring for fans, call bells, etc.

(c) SEARCHLIGHTS.—Demonstrate ability to operate searchlights in ship to which attached.

(d) HAND TOOLS.—Demonstrate ability to use electricians' hand tools.

(e) SOLDERING AND BRAZING.—Demonstrate ability to perform simple soldering and brazing.

(f) ELECTRIC MOTORS.—Demonstrate ability to start, stop, clean, and oil electric motors.

(g) STORAGE BATTERIES.—Demonstrate ability to charge portable storage batteries.

(h) RESUSCITATION.—Demonstrate the resuscitation of a man unconscious from electric shock.

(i) D-5207.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) TERMINOLOGY.—Know the meaning of common terms used in electricity.

(b) DIRECT CURRENT.—Know Ohm's law, Kirchoff's laws, and be able to solve simple problems in direct current.

(c) SAFETY PRECAUTIONS.—Know the safety precautions to be observed in the care and operation of commonly used electrical apparatus.

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(d) INTERIOR COMMUNICATIONS.—Know the use of selsyn and step-by-step motors in interior communications.

(e) D-5207.01 (2) (B).

(f) D-5203.

(2) ELECTRICIAN'S MATE, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate ability to stand watch at the main power and light switchboard.

(b) CIRCUITS AND WIRING.—Demonstrate ability to locate and repair open circuits and run fixed wiring.

(c) GENERATORS.—Demonstrate ability to start and stop generators and operate them in parallel.

(d) SEARCHLIGHTS.—Demonstrate ability to care for and maintain searchlights in ship to which attached.

(e) BATTERIES.—Demonstrate ability to charge batteries.

(f) TRANSFORMERS.—Demonstrate ability to operate the various types of transformers.

(g) ELECTRICAL EQUIPMENT.—Demonstrate ability to care for and repair the electrical equipment (including the ignition system) of ship's boats.

(h) TELEPHONES.—Demonstrate ability to care for and repair sound-powered and battery telephones and all telephone circuits.

(i) D-5207.04 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) STORAGE BATTERIES.—Know the construction and theory of storage batteries.

(b) ALTERNATING CURRENT.—Know the elementary theory of alternating current and be able to solve simple problems in alternating current.

(c) MOTORS AND GENERATORS.—Know the construction and uses of A. C. and D. C. motors and generators in ship to which attached.

(d) ELECTRICAL EQUIPMENT.—Know the requirements as established in current publications of the Bureau of Ships relating to the care and maintenance of electrical equipment on board ship.

(e) ELECTRICAL PROPULSION.—Be able to show by diagram the motors and machinery in a typical alternating-current electric-drive ship and know the theory of electrical propulsion.

(f) TRANSFORMERS.—Know the characteristics of current and voltage transformers.

(g) TELEPHONES.—Know how to diagram fire-control telephones and interior-communication telephones and circuits.

(h) VACUUM TUBES.—Know the theory of the vacuum tube and the relations between grid, plate, and filament under various conditions.

(i) CIRCUITS AND WIRING.—Know how to trace circuits on electrical plans and to read and understand wiring diagrams of starting apparatus and electrical instruments.

(j) D-5207.04 (1) (B).

(3) ELECTRICIAN'S MATE, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) ARMATURE.—Demonstrate ability to wind an armature.

(b) WATCH STANDING.—Demonstrate ability to stand watch on the main gyro compass under way.

--16517--

(c) SYNCHRO UNITS.—Demonstrate ability to adjust and make settings and detect and isolate electrical troubles in the various types of synchro units used in interior communications and fire-control.

(d) MOTORS AND GENERATORS.—Demonstrate ability to find and remedy faults in motors and generators.

(e) TELEPHONES.—Demonstrate ability to install and adjust ship's service telephones, including automatic systems.

(f) ELECTRICAL APPARATUS.—Demonstrate ability to make all tests of shipboard electrical apparatus required by regulations and to make proper reports on such tests and inspections.

(g) D-5207.04 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) GYRO COMPASS.—Know the theory of the gyro compass.

(b) GENERATORS.—Know the characteristics of the various types of A. C. and D. C. generators used on board ship.

(c) ELECTRICAL CIRCUITS.—Know how to compute the elements of simple electrical circuits A. C. and D. C.

(d) SYNCHRO UNITS.—Know the theory and operating principles of the various types of synchro units used in interior communications and fire-control.

(e) TUBES.—Know the theory and operating principles of grid control rectifier tubes and power tubes.

(f) BATTERIES.—Know the theory and construction of all types of batteries, dry and storage, with special regard to their uses on board ship.

(g) D-5207.04 (2) (B).

(4) CHIEF ELECTRICIAN'S MATE.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate ability to stand watch in charge of the electrical department on board ship. Demonstrate ability to stand watch in main control room if attached to a ship having electric drive.

(b) ELECTRICAL REPAIRS.—Demonstrate ability to make all shipboard electrical repairs.

(c) D-5207.04 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) AUTOMATIC CONTROL SYSTEMS.—Know the theory and operating principles of all remote automatic control systems for gun train and elevation.

(b) ELECTRICAL THEORY.—Know electrical theory and its practical application in motors, generators, transformers, switchboards, control appliances, and all shipboard electrical equipment.

(c) ELECTRICAL REPAIRS.—Know where to look for trouble in electrical equipment that is not functioning properly.

(d) D-5207.04 (3) (B).

(C) SCHOOL QUALIFICATIONS.

(a) Must be a graduate of Gyro Compass School OR (b) Electrical Interior Communications School. (Commanding officers may waive the school requirement in accordance with current instructions from the Bureau of Naval Personnel.)

D-5207.05. Water Tenders.

(I) WATER TENDER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

--16518--

(b) WATCH STANDING.—Demonstrate ability to stand watch in a fireroom in port and under way, including fighting off, cutting in, and securing boilers. Demonstrate ability to take charge of a fireroom auxiliary watch.

(c) COMBUSTION.—Demonstrate ability to use appearance of the furnace as a guide to good combustion conditions. Demonstrate ability to maintain a clear stack with a minimum of excess air. Demonstrate an understanding of the proper use of smoke screen nozzles.

(d) MAINTENANCE AND REPAIRS.—Demonstrate ability to clean firesides and watersides of boilers. Be able to clean burners, make minor repairs to boiler fittings, and set and adjust boiler safety valves. Know how to make minor repairs to all auxiliary machinery in the fireroom.

(e) FEED WATER.—Know how to detect low water immediately, and know the cause and remedy therefor. Be able to give a boiler a bottom and surface blow. Know the proper method of adding boiler compound.

(f) TESTS.—Demonstrate ability to conduct all boiler water tests, using standard test equipment.

(g) EMERGENCY PROCEDURES.—Demonstrate knowledge of the procedure in cutting out a boiler in event of such emergencies as low water, loss of oil suction, ruptured tube, and after a boiler is no longer needed on the line.

(h) AUXILIARIES.—Demonstrate ability to operate all fireroom auxiliaries.

(i) DAMAGE CONTROL.—Demonstrate knowledge of damage control fittings on own station, and procedure for casualty control.

(j) BLUEPRINTS.—Demonstrate ability to read and understand simple blueprints.

(k) D-5207.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) LOG.—Know where to obtain and how to enter correct data for the fireroom log.

(b) SAFETY PRECAUTIONS.—Know all fireroom safety precautions.

(c) CASUALTY PROCEDURES.—Explain emergency procedure in event of casualty.

(d) FIRE FIGHTING PROCEDURE.—Know in detail fire fighting procedure.

(e) DAMAGE CONTROL.—Know the location of all damage control fittings in firerooms, including main and secondary drainage systems, battle oil manifolds and methods of splitting the steam plant. Know the reasons why a split plant condition is maintained in a battle zone.

(f) BOILER CONSTRUCTION.—Know the principal construction features of modem naval boilers. Sketch a water-tube boiler, showing the path of gases and the circulation of water.

(g) BOILER OPERATION.—Knowledge of routine operations in tending modem naval boilers.

(h) BOILER TESTING.—General knowledge of boiler testing and hydrostatic tests of valves and fittings.

(i) PARTS AND FITTINGS.—Know the names and uses of boiler fittings and auxiliaries, such as pumps and blowers. List the functions of a properly installed safety valve.

(j) FUEL AND WATER SYSTEMS.—Know thoroughly the distribution systems for fuel and water aboard own ship, and how to transfer fuel oil, lubricating oil, and water.

(k) COMBUSTION.—Know the principles of combustion, and the meaning of viscosity, flash point, and fire point. Know the causes of smoke.

(1) DISTILLING PLANT.—Know the operating principles of a distilling plant.

(m) ATOMIZERS.—Explain why different size atomizers are used, list those

--16519--

authorized for own ship, and give a brief description of proper cleaning procedure.

(n) RESCUE BREATHING APPARATUS—Thorough knowledge of use of rescue breathing apparatus.

(o) D-5207.01 (2) (B).

(p) D-5203.

(2) WATER TENDER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) WATCH STANDING.—Demonstrate ability to take charge of a fireroom under way.

(b) MAINTENANCE AND REPAIR.—Demonstrate ability to make minor repairs to firesides and watersides of boilers.

(c) DAMAGE CONTROL.—Be qualified to operate all damage control valves and fittings as directed. Know how to split and cross-connect the various systems in own fireroom in the event of damage in battle.

(d) VALVES.—Demonstrate ability to set and adjust boiler safety valves. Demonstrate ability to operate a portable valve reseating outfit and know how to grind in leaky valves.

(e) PUMPS.—Demonstrate ability to pack reciprocating and centrifugal pumps and to make minor adjustments and repairs.

(f) PRESSURE GAGES.—Demonstrate ability to test and adjust pressure gages and manometers.

(g) D-5207.05 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) SAFETY VALVES.—Explain the procedure for setting a bank of safety valves, and give settings for valves in own ship.

(b) GAGES.—Name all the gages in own fireroom and list their functions. General knowledge of gage repairs.

(c) FUEL.—Know how to make a fuel estimate. Thorough knowledge of fuel oil distribution, filling, and transfer piping system.

(d) DRAINAGE SYSTEM.—Know the drainage system in own ship and know how to take suction from any designated compartment.

(e) SAFETY PRECAUTIONS.—Detailed knowledge of safety precautions pertaining to boilers, blowers, fuel, feed water systems, and other features of a fireroom.

(f) CASUALTY PROCEDURES.—Thorough knowledge of procedures to be followed in event of casualty.

(g) D-5207.01 (1) (B).

(3) WATER TENDER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to supervise the work and training of men in lower ratings.

(b) DAMAGE CONTROL.—Demonstrate ability to take charge of a damage control boiler repair party.

(c) BRICKWORK.—Demonstrate ability to renew brickwork, boiler-furnace, and boiler casing insulation.

(d) TUBES.—Demonstrate ability to operate and maintain a standard motor-driven tube cleaning outfit and all its parts and accessories. Know how to plug a ruptured tube, and be able to cut out and replace a ruptured tube.

(e) SAFETY VALVES,—Demonstrate ability to adjust the safety valves of a boiler under steam.

--16520--

(f) BLUEPRINTS.—Demonstrate ability to read and understand all blueprints pertinent to fireroom repair.

(g) D-5207.05 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) MATERIALS.—Know the characteristics and uses of materials employed in boiler construction. Know the various kinds of packing and gaskets used in the fireroom and purpose for which they are used.

(b) BUREAU OF SHIPS MANUAL.—Be thoroughly conversant with pertinent parts of Chapter 51 of the Bureau of Ships Manual.

(c) BOILER INSPECTION.—Know where to look for corrosion and distortion of boiler elements when making a boiler inspection.

(d) BOILER TESTING.—Know how to test a boiler hydrostaticaily for tightness.

(e) FUEL.—Know the duties of the "Oil King" and have a thorough knowledge of fuel oils and fuel oil system of own ship. Know the procedure for correcting list and trim by ballasting. Know how to keep boiler record sheets.

(f) AUXILIARIES.—Know the principles, operation, care, and repair of condensers, evaporators, feed water heaters, feed pumps, fuel oil heaters, air compressors (reciprocating) and fire extinguishing apparatus in own ship.

(g) BUREAU OF SHIPS APPROVAL.—Know the items, such as drill testing, welding on boiler pressure parts, etc., that must be referred to the Bureau of Ships for approval prior to accomplishment.

(h) D-5207.05 (2) (B).

(4) CHIEF WATER TENDER.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to organize and supervise personnel engaged in major fireroom repairs. Be able to estimate man-hours and material.

(b) DAMAGE CONTROL.—Demonstrate ability to organize and direct damage control parties.

(c) WATCH, QUARTER, AND STATION BILL—Demonstrate ability to prepare a watch, quarter, and station bill for "B" Division of own ship.

(d) ENGINEERING RECORDS.—Demonstrate ability to keep engineering records, including machinery history, maintenance, and repair records, machinery index, and boiler record sheets. Be able to prepare a navy yard or tender work request, and request for alteration.

(e) D-5207.05 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) BOILER MAINTENANCE.—Know the various types of naval boilers and the methods of cleaning and repairing such boilers. Know the usual location of heavy corrosion, heavy soot deposits, and other typical faults, and be able to apply the correct remedy.

(b) BOILER AND COMBUSTION EFFICIENCY.—Know what factors affect boiler and combustion efficiency and be able to determine the most efficient manner of firing and feeding a boiler under various conditions.

(c) MAIN PROPULSION MACHINERY.—General knowledge of the principles of operation of main propulsion machinery in own ship.

(d) CHARACTERISTICS OF OIL.—Detailed knowledge of characteristics of fuel and lubricating oils.

(e) BUREAU OF SHIPS MANUAL.—General knowledge of Bureau of Ships Manual.

--16521--

(f) REPORTS.—Know the reports covering equipment failure, damage, defects, etc., that are to be submitted to the Bureau of Ships.

(g) D-5207.05 (3) (B).

D-5207.06. Boilermakers.

(1) BOILERMAKER, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1).

(b) WATCH STANDING.—Demonstrate ability to stand a fireroom watch under way.

(c) TOOLS.—Demonstrate ability to use all hand tools, pneumatic tools, machine tools, taps and dies, measuring instruments, and equipment employed by boilermakers, observing necessary safety precautions.

(d) AUXILIARIES.—Demonstrate ability to operate, and make minor repairs to, all fireroom auxiliaries.

(e) PIPEFITTING.—Demonstrate ability to cut threads and fit pipe, to make joints in pipe lines, and to remove and replace pipe covering.

(f) BOILER MAINTENANCE.—Demonstrate ability to clean firesides and watersides of boilers.

(g) BOILER REPAIRS.—Demonstrate ability to make minor boiler repairs, including repairs to brickwork of boiler furnaces. Demonstrate ability to plug, cut out, and replace ruptured tubes.

(h) TESTS.—Demonstrate ability to make all boiler water tests and be able to test a boiler for tightness both on water and firesides.

(i) VALVES.—Demonstrate ability to adjust the safety valves of a boiler under steam.

(j) DAMAGE CONTROL FITTINGS.—Demonstrate ability to locate all damage control fittings in own firerooms.

(k) BLUEPRINTS.—Demonstrate ability to read and understand simple blueprints.

(1) D-5207.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) LOG.—Know where to obtain and how to enter correct data for the fireroom log.

(b) BOILER CONSTRUCTION.—Sketch a modem naval boiler, naming all principal fittings. Know the construction of boilers in own ship, including strength and kinds of materials.

(c) DAMAGE CONTROL.—Know the organization of damage control party to which assigned.

(d) BOILER OPERATION.—General knowledge of routine operations in tending a marine water-tube boiler. Know the proper sequence for cutting out a boiler under the various emergencies which may occur.

(e) SAEETY PRECAUTIONS.—Know fireroom safety precautions.

(f) CASUALTY PROCEDURE.—Know procedure to be followed in event of casualty.

(g) DRAINAGE SYSTEM.—Trace the main and secondary drainage systems in engineering spaces (including all manifolds).

(h) FUEL AND WATER SYSTEMS.—Know thoroughly the distribution systems for fuel and water aboard own ship.

(i) WELDING.—General knowledge of gas and arc welding. Know the safety precautions to be observed with use of welding equipment in engineering spaces.

--16522--

(j) GASES.—Be able to recognize bottled gases by their standard markings and know the safety precautions for their use.

(k) BRICKWORK.—Make cross section sketch of furnace brickwork and show method of anchoring; know the kind of material needed to re-brick an oil-burning furnace.

(1) PARTS AND FITTINGS.—Know the steps in renewing gage glasses and testing for low water. Explain routine tests to be made with tricocks. Know the different kinds of packing aboard ship in making joints in high and low pressure steam and water lines and valves, and know what defects or distortions to look for when examining a boiler.

(m) RESCUE BREATHING APPARATUS.—Thorough knowledge of use of rescue breathing apparatus.

(n) D-5207.01 (2) (B).

(o) D-5203.

(2) BOILERMAKER, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) WELDING.—Demonstrate ability to qualify as a welder, third class. (This requirement may be waived by commanding officers in the ease of candidates with outstanding ability and skill.)

(b) JOINTS.—Demonstrate ability to remake good joints in high and low pressure steam and water lines.

(c) BRICK REPAIRS.—Demonstrate ability to make minor repairs to furnace brickwork.

(d) DAMAGE CONTROL.—Demonstrate familiarity with all damage control markings and fittings in firerooms to include splitting and unsplitting the steam plant and drainage manifolds.

(e) BOILER REPAIRS.—Demonstrate ability to renew parts of a boiler such as tubes, nipples, headers, and gage glass columns and valves.

(f) SHEET METAL WORK.—Demonstrate ability to renew rivets and lay out sheet metal work.

(g) CALKING.—Demonstrate ability to calk seams and rivets.

(h) TOOLS.—Demonstrate ability to use and keep in good working order all hand tools and pneumatic tools commonly used by boilermakers.

(i) SAFETY VALVES.—Demonstrate ability to set and test a bank of safety valves.

(j) WATCH STANDING.—Demonstrate ability to stand watches in a steaming fireroom as a blower man, check man, and burner man.

(k) BLUEPRINTS.—Demonstrate ability to read and understand all blueprints used by a boilermaker.

(l) D-5207.06 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) TESTS.—Know the reasons for and the methods of making all tests of boiler water and boiler feed water. Knowledge of the various hydrostatic tests required by Chapter 51 of Bureau of Ships Manual.

(b) BOILERS.—Know the various types of naval boilers including the usual location of heavy corrosion, heavy soot deposits, and other typical faults, and be able to apply the correct remedy. Discuss the effects of introducing grease and salt water into the interior of boilers and know how to apply corrective remedies.

(c) BOILER CONSTRUCTION.—Detailed knowledge of the construction of boilers in own ship.

(d) PUMPS.—Know all major parts comprising a reciprocating pump.

--16523--

(e) SAFETY PRECAUTIONS.—Thorough knowledge of fireroom safety precautions, including precautions to be observed with boilers, forced draft blowers, fuel, and feed water systems.

(f) CASUALTY PROCEDURES.—Thorough knowledge of procedures to be followed in event of casualty.

(g) WELDING.—Be familiar with welding nomenclature, definitions, and symbols, as set forth in General Specifications for Inspection of Material.

(h) D-5207.06 (1) (B).

(3) BOILERMAKER, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) WELDING.—Demonstrate ability to qualify as a welder, third class.

(b) TESTS.—Demonstrate ability to make all tests of boiler water and boiler feed water.

(c) BRICKWORK.—Demonstrate ability to renew entire furnace brickwork of boiler furnace.

(d) BOILER REPAIRS.—Demonstrate ability to install hard or soft patches on boiler parts and to make all other repairs to a boiler that are necessary to be accomplished aboard ship.

(e) DAMAGE CONTROL.—Demonstrate ability to take charge of an engineering damage control party. Be able to estimate battle damage and time required for repairs.

(f) WATCH STANDING.—Demonstrate ability to take charge of a steaming watch under way.

(g) D-5207.06 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) SPARE PARTS.—Know how spare parts of boiler are preserved and know the method of obtaining spare parts for fireroom auxiliaries.

(b) BUREAU OF SHIPS APPROVAL.—Know the items, such as drill testing, welding on boiler pressure parts, etc., that must be referred to the Bureau of Ships for approval prior to accomplishment.

(c) AUXILIARIES.—Know the principles, operation, care and repair of condensers, evaporators, feed water heaters, feed pumps, fuel oil heaters, and air compressors (reciprocating) in own ship.

(d) TOOLS AND MATERIALS.—Be able to prepare necessary data for the ordering of tools and materials required for the re-tubing of condensers, evaporators, feed water heaters, and ship fuel oil heaters in own ship.

(e) BLOWER REPAIRS.—Know how major repairs are made to forced draft blowers, including the renewal of bearings, adjustment of speed governors, and balancing of fans.

(f) BUREAU OF SHIPS MANUAL.—Know thoroughly pertinent parts of Chapter 51 of the Bureau of Ships Manual.

(g) STEAM GAGES.—Know how to calibrate steam gages.

(h) BOILER CONSTRUCTION.—Know the characteristics and uses of materials employed in boiler construction.

(i) D-5207.06 (2) (B).

(4) CHIEF BOILERMAKER.

(A) PRACTICAL FACTORS.

(a) SUPERVISION.—Demonstrate ability to take charge of a steaming fireroom under way. Demonstrate ability to organize and supervise the work and training of subordinates.

--16524--

(b) BOILER REPAIRS.—Demonstrate ability to lay out and to estimate time, labor, cost, and material for any boiler repair job.

(c) BOILER OPERATION.—Demonstrate ability to operate all boilers in own ship and to maintain them in good condition.

(d) FLUE GAS ANALYSIS.—Demonstrate ability to operate flue gas analysis equipment.

(e) DAMAGE CONTROL.—Demonstrate knowledge of all damage control fittings and markings in the engineering spaces aboard own ship.

(f) D-5207.06 (3) (A).

(B) EXAMINATION SUBJECTS.

(a) BOILER CONSTRUCTION.—Know the details of and the principles involved in the construction of various types of naval boilers, including a knowledge of the size, thickness, and parts affecting the strength of boilers, especially those parts that are likely to require replacements.

(b) BOILER EFFICIENCY.—Know what factors affect boiler efficiency; be able to determine the most efficient manner of firing and feeding a boiler under varying conditions of operation.

(c) FUEL OIL.—Know the characteristics of fuel oil and precautions to be observed in its use.

(d) MAIN PROPULSION MACHINERY.—Know the general principles of operation of the main propulsion machinery.

(e) WELDING.—Thorough knowledge of current instructions regarding joint efficiency. Thorough knowledge of welding instructions set forth in Chapter 51, Bureau of Ships Manual.

(f) REPORTS.—Know the reports covering equipment failure, damage, defects, etc., that are to be submitted to the Bureau of Ships.

(g) D-5207.06 (3) (B).

D—5208. AVIATION BRANCH.

D-5208.01. Aviation Pilots.

Note.—In no case will a man continue to perform the duties of an aviation pilot, who, due to physical or other reasons, is not capable at all times of performing the duties of his rating, including flying. In such cases the commanding officer shall report to the Bureau of Naval Personnel in detail.

(1) AVIATION PILOT, SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) EXPERIENCE.—Must have flown alone in heavier-than-air craft not less than 75 hours, and have flown in heavier-than-air craft a total of not less than 200 hours.

(b) PERFORMANCE.—Must have indicated good judgment, technique, and ability as a pilot embracing tactics, practical navigation, gunnery, bombing, and utility duties.

(c) INSTRUMENT FLYING.—Demonstrate ability in instrument flying.

(B) EXAMINATION SUBJECTS.

(a) As given in the ground school course at the flight training center.

(C) SCHOOL QUALIFICATIONS.

(a) Must have completed satisfactorily a flying course for aviation pilots in heavier-than-air training in accordance with the prescribed syllabus for aviation pilot training at an aviation training school authorized by the Bureau of Naval Personnel.

--16525--

(2) AVIATION PILOT, FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) EXPERIENCE.—Have served as an aviation pilot, second class, for at least six (6) months.

(b) D-5208.01 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) AIRCRAFT ENGINES.—Know the principles of aircraft engine performance, and theory of operations.

(b) NOMENCLATURE.—Be familiar with nomenclature of the engine being used in the unit to which attached.

(c) MAINTENANCE.—Have a general knowledge of upkeep, overhaul, adjustment, and operation of engines of aircraft assigned to own unit, and of accessories such as carburetors, ignition apparatus, and starters.

(d) THEORY OF FLIGHT.—Be familiar with the principles and theory of flight.

(e) C.A.A.—Be familiar with Civil Aeronautics Administration regulations.

(f) CONSTRUCTION AND UPKEEP.—Have a general knowledge of aircraft structures and materials, upkeep, and overhaul.

(g) GROUND AND BEACH GEAR.—Have a general knowledge of ground and beach gear, lines, and tackle.

(h) RADIO EQUIPMENT.—Have a general knowledge of aircraft radio equipment, upkeep, and adjustments. Know the safety precautions to be observed.

(i) COMMUNICATIONS.—Be familiar with communications as applied to the type of aircraft flown and the duty performed.

(j) INSTRUMENTS.—Have a general knowledge of aircraft instruments, their errors, and how they are corrected.

(k) GUNNERY EQUIPMENT.—Have a general knowledge of aircraft gunnery equipment, upkeep, and adjustments. Know the safety precautions to be observed.

(3) CHIEF AVIATION PILOT.

(A) PRACTICAL FACTORS.

(a) EXPERIENCE.—Have served as an aviation pilot, first class, for at least six (6) months.

(b) D-5208.01 (2) (A).

(B) EXAMINATION SUBJECTS.

(a) More detailed knowledge of examination subjects set forth in D-5208.01 (2) (B).

D-5208.011. Aviation Pilots (Airship).

Note.—Upon the successful fulfillment of the qualifications outlined in (1) below, an enlisted man who has a rating below that of petty officer, second class, will be rated an aviation pilot (airship), second class. Other enlisted men will be rated aviation pilot (airship), with the same grade of petty officer rating as that held at the time of the completion of the course.

(1) AVIATION PILOT (AIRSHIP), SECOND CLASS.

(A) PRACTICAL FACTORS.

(a) EXPERIENCE.—Must have been in the air under training in airships not less than 150 hours, and must have flown in lighter-than-air craft, including balloons, a total of not less than 200 hours.

--16526---

(b) PERFORMANCE.—Must have indicated good judgment, technique, and ability as an airship pilot, embracing practical navigation, communications, gunnery, bombing, tactics of airship submarine search and attack, convoy escort, and anti-submarine patrol.

(c) PILOTING.—Must have demonstrated ability in piloting at night, and in low visibility, and in the use of radio aids to navigation.

(B) EXAMINATION SUBJECTS.

(a) As given in the ground school course at an airship training center.

(C) EDUCATIONAL QUALIFICATIONS.

(a) Must be designated "Qualified LTA" (LA) after graduating from an Airship Training School.

(b) Must have satisfactorily completed a course for aviation pilot (airship) in lighter-than-air training of the same character and scope as that for naval aviation cadets at an airship training center authorized by the Bureau of Naval Personnel.

(2) AVIATION PILOT (AIRSHIP), FIRST CLASS.

(A) PRACTICAL FACTORS.

(a) EXPERIENCE.—Must have served as an aviation pilot (airship), second class, for at least six (6) months.

(b) D-5208.011 (1) (A).

(B) EXAMINATION SUBJECTS.

(a) AIRCRAFT ENGINES.—Know the principles of aircraft engine performance.

(b) NOMENCLATURE.—Be familiar with the nomenclature of the engines being used in airships.

(c) MAINTENANCE.—Have a general knowledge of upkeep, overhaul, adjustment, and operation of engines and engine accessories being used in airships.

(d) LIFTING GASES.—Have a general knowledge of the theory of lifting gases and their application to airship operation.

(e) CONSTRUCTION AND UPKEEP.—Have a working knowledge of airship structures and materials, upkeep, and overhaul.

(f) C.A.A.—Be familiar with such Civil Aeronautics Administration regulations which apply to lighter-than-air craft.

(g) GROUND-HANDLING EQUIPMENT.—Have an operating knowledge of all airship ground-handling equipment.

(h) RADIO AND ELECTRICAL EQUIPMENT—Have an operating knowledge of airship radio and other special electrical equipment.

(i) COMMUNICATIONS.—Be qualified in communications as used in airships.

(j) INSTRUMENTS.—Have an operating knowledge of airship instruments.

(k) ORDNANCE.—Have an operating knowledge of airship ordnance equipment, upkeep, adjustment, and safety precautions.

(l) AEROLOGICAL AIDS TO NAVIGATION—Be familiar with aerological aids to navigation, including an operating knowledge of synoptic weather maps and upper air data.

(3) CHIEF AVIATION PILOT (AIRSHIP).

(A) PRACTICAL FACTORS.

(a) EXPERIENCE.—Have served as an aviation pilot (airship), first class, for at least six (6) months.

(b) D-5208.011 (2) (A).

--16527--

(B) EXAMINATION SUBJECTS.

(a) More detailed knowledge of examination subjects set forth in D-5208.011 (2) (B).

D-5208.02. Aviation Machinist's Mates.

(1) AVIATION MACHINIST'S MATE, THIRD CLASS.

(A) PRACTICAL FACTORS.

(a) D-5204 (1) and (2), except (2) (b) which is not required of nonflying personnel.

(b) TOOLS AND MEASURING INSTRUMENTS.—Demonstrate ability to use properly the common aircraft mechanic's tools and simple precision measuring instruments such as scales, gages, and micrometers.

(c) WORKING DRAWINGS.—Demonstrate ability to read and interpret aircraft detail drawings, shop sketches, and blueprints. Demonstrate ability to make working sketches of simple fittings to be machined.

(d) SAFETY PRECAUTIONS.—Demonstrate proper methods and safety precautions to be observed in refueling and changing oil of service aircraft.

(e) ENGINES.—Demonstrate ability to start and to warm-up properly aircraft engines.

(f) PLANE HANDLING.—Demonstrate ability to handle planes on the deck, ground, and in the hangar.

(g) SPARK PLUGS.—Demonstrate the removal, cleaning, testing, and replacement of spark plugs.

(h) ENGINE MAINTENANCE.—Demonstrate ability to remove storage preservative, clean, and install aircraft engines; to check the installation of the various engine accessories; and to clean fuel and oil strainers.

(i) PROPELLERS.—Demonstrate the proper method of inspecting and checking the track of service propellers.

(j) COWLING AND PLATES.—Demonstrate the removal of cowling, fairings, wing fillets, and inspection plates.

(k) AIRPLANE MAINTENANCE.—Demonstrate the proper cleaning of service aircraft, including plastic windshields and enclosures. Be able to make minor repairs to fabric covered surfaces.

(l) TIRES.—Demonstrate ability to change, repair, and service tires and tubes.

(m) SAFETYING AND BONDING.—Demonstrate use of correct technique of safetying and bonding.

(B) EXAMINATION SUBJECTS.

(a) NOMENCLATURE.—Have a general knowledge of the elementary theory of flight and an understanding of aircraft nomenclature.

(b) AIR ENGINES.—Elementary knowledge of theory and operational principles of aircraft engines.

(c) MATHEMATICS.—Have a basic understanding of simple mechanics and shop mathematical operations, including whole numbers, fractions, decimals, per cent, area and volume, and simple functions of the right triangle.

(d) AIRCRAFT MATERIALS.—Be thoroughly familiar with common aircraft materials and corrosion prevention.

(e) LUBRICATION.—Have a general understanding of the theory of lubrication and the function of service aircraft oil systems.

(f) D-5203.

(C) SCHOOL QUALIFICATIONS.

(a) Be a graduate of a Class A Aviation Machinist's Mate School or possess the equivalent in practical experience.

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