SECTION V. ITALY

ITALIAN MEDIUM TANK: (See figure 58.)

CARRO ARMATO TIPO M 13-40.

MEDIUM TANK MODEL 13-40.

EMPLOYMENT: Armored division.

DATE OF INTRODUCTION: 1940.

MANUFACTURER: Ansaldo - Fossati.

COMBAT WEIGHT: 15.4 tons.

CREW: 4.

LENGTH: 16.2 ft.

PITCH OF TRACK: 4.9 in.

WIDTH: 7.25 ft.

NUMBER OF TRACK LINKS: 84.

HEIGHT: 7.8 ft.

TRENCH CROSSING ABILITY: 6.9 ft.

GROUND CLEARANCE: 16.2 in.

FORDING DEPTH: 39.4 in.

TREAD CENTERS: 6.3 ft.

OBSTACLE ABILITY: 31.5 in.

GROUND CONTACT: 116 in.

CLIMBING ABILITY: 40° (84%) slope.

WIDTH OF TRACK: 10.2 in.

GROUND PRESSURE: 13.2 lbs/sq. in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: 124 miles on roads.

FUEL CONSUMPTION: Approximately 2.5 mi/gal on roads.

FUEL CAPACITY: 50 gal.(39.5 gal. in main tank and 10.5 gal. in reserve tank).

SPEED: 19.7 mph on roads; 7.2 mph cross-country.

ENGINE: Type 8T M. 13, 8 cylinder, 105 HP, Diesel, compression ratio 17.6:1, liquid- cooled.

STARTER: Hand inertia and electric.

ELECTRICAL SYSTEM: 24-volt starting.

TRANSMISSION: Monodisc type, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Two double articulated bogies, each with four twin road wheels, each group independently sprung.

TURRET: Hand traverse.

ARMOR: Front - 1.2 in.; side - 1 in.; turret front - 1.6 in.; turret side -1 in.

ARMAMENT: One 47-mm gun, caliber length 32.

Four 8-mm Breda machine guns (1 coaxial, 2 in bow, 1 for AA)

MUZZLE VELOCITY: 2,067 ft/sec.

AMMUNITION STOWAGE: Gun - 104 rds.
MG - 3,048 rds.

PROJ. WEIGHT (AP): 3.25 1b.

REMARKS: Best of the Italian tanks.

[117]

ITALIAN SELF-PROPELLED GUN;(See figure 59.)

47-MM GUN ON L 6/40 CHASSIS. SEMOVENTE 47/32.

EMPLOYMENT: Tank destroyer units of armored divisions.

DATE OF INTRODUCTION: 1941.

MANUFACTURER: Fiat-Ansaldo.

COMBAT WEIGHT: Approximately 7.5 tons.

PITCH OF TRACK: 3.75 in.

LENGTH: 12.6 ft.

NUMBER OF TRACK LINKS: 89.

WIDTH: 6.1 ft.

TRENCH CROSSING ABILITY: 5.6 ft.

HEIGHT: 5.1 ft.

FORDING DEPTH: 31.5 in.

GROUND CLEARANCE: 15.7 in.

OBSTACLE ABILITY: 31 in.

TREAD CENTERS: 5.1 ft.

CLIMBING ABILITY: 40° (84%) slope.

GROUND CONTACT: 106 in.

GROUND PRESSURE: Approximately 6.9 lbs/sq. in.

WIDTH OF TRACK: 10.25 in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: 124 miles on roads, 50 miles cross-country.

FUEL CONSUMPTION: 2.8 mi/gal on roads; 1.1 mi/gal cross-country.

FUEL CAPACITY: 44 gal. in two tanks.

SPEED: 26 mph max.

ENGINE: Model 18 VT, gasoline, 4 cylinders, 68 HP at 2,500 rpm, liquid-cooled.

STARTER: Electric.

IGNITION: Magneto.

TRANSMISSION: Four speeds forward, one reverse, reduction gear gives four lower speeds.

STEERING: Clutch brake.

SUSPENSION: Four rubber tired road wheels mounted in pairs, each sprung by a curved cantilever and torsion bar. The rear wheel acts as a load carrier and as the track return. Three return rollers.

TURRET: None.

ARMOR: Front - 1.5 in.; side - .63 in.; mantlet - 2 in.

ARMAMENT: One 47-mm gun, caliber length 34.

ELEVATION: None.

MUZZLE VELOCITY (AP): Approximately 2, 100 ft/sec.

TRAVERSE: None.

PROJ. WEIGHT(AP): 3.25 1b.

AMMUNITION STOWAGE: 47-mm.

REMARKS: This had been used at El Alemein, and moved westward to near Tobruk, where captured. Sent to APG 1943.

[119]

ITALIAN SELF-PROPELLED HOWITZER: (See figure 60.)

OBICE DA 75/18 SEMOVENTE.

75-MM HOWITZER ON M13/40 CHASSIS.

EMPLOYMENT: Armored divisions.

DATE OF INTRODUCTION: 1940.

MANUFACTURER: Fiat-Ansaldo.

COMBAT WEIGHT: 14.4 tons.

CREW: 4.

LENGTH: 16.1 ft.

PITCH OF TRACK: 5.25 in.

WIDTH: 7.3 ft.

NUMBER OF TRACK LINKS: 83.

HEIGHT: 5.9 ft.

TRENCH CROSSING ABILITY: 6.9 ft.

GROUND CLEARANCE: 16.2 in.

FORDING DEPTH: 39.4 in.

TREAD CENTERS: 6.2 ft.

OBSTACLE ABILITY: 31.5 in.

GROUND CONTACT: 116 in.

CLIMBING ABILITY: 40° (84%) slope.

WIDTH OF TRACK: 10.2 in.

GROUND PRESSURE: 12.2 lbs/sq. in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: 124 miles on roads.

FUEL CONSUMPTION: Approximately 2.5 mi/gal on roads.

FUEL CAPACITY: 50 gal. in two tanks.

SPEED: 19.7 mph on roads; 7.2 mph cross-country.

ENGINE: Type 15T, 8 cylinders, 125 HP at 1,900 rpm, Diesel, liquid-cooled.

STARTER: Hand inertia and electric.

ELECTRICAL SYSTEM: 24-volt starting.

TRANSMISSION: Monodisc type, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Two double articulated bogies, each with four twin road wheels, each group independently sprung.

TURRET: None.

ARMOR: Front - 1 in.; side - 1 in.; mantlet - 2 in.

ARMAMENT: One 75-mm howitzer, caliber length 18.

ELEVATION: -12° to +22°.

MUZZLE VELOCITY (AP): 1,562 ft/sec.

TRAVERSE: 20° R and 18°L.

MAX. RANGE (HE): 8,200 yd.

PROJ. WEIGHT (AP): 13.9 lb.

AMMUNITION STOWAGE: 44 rds.

REMARKS: Used during battle of El Alemein, moved westward to near Tobruk where captured. Shipped to Aberdeen from Egypt 1943.

[121]

ITALIAN SELF-PROPELLED GUN: (See figure 61.)

90/53 SEMOVENTE.

90-MM AA GUN ON M14-41 TANK CHASSIS (FOR GROUND TARGETS ONLY).

DATE OF INTRODUCTION: 1942.

MANUFACTURER: Ansaldo.

COMBAT WEIGHT: Approximately 17 tons.

PITCH OF TRACK: 4.9 in.

LENGTH: 17.4 ft.

NUMBER OF TRACK LINKS: 86.

WIDTH: 7.4 ft.

TRENCH CROSSING ABILITY: 7 ft.

HEIGHT: 7.15 ft.

FORDING DEPTH: 39.4 in.

GROUND CLEARANCE: 16.2 in.

OBSTACLE ABILITY: 35 in.

TREAD CENTERS: 6.3 ft.

GROUND PRESSURE: Approximately 13.8 lbs/sq. in.

GROUND CONTACT: 121 in.

WIDTH OF TRACK: 10.2 in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: 124 miles on roads.

SPEED: Approximately 20 mph.

ENGINE: V-8, Diesel, 125 HP.

STEERING: Clutch brake.

SUSPENSION: Two double articulated bogies, each with four twin road wheels, each group independently sprung.

ARMOR: Front - 1 in.; side - 1 in. — superstructure front - 1.6 in.; side - .4 in.

ARMAMENT: One 90-mm gun model 41, caliber length 5 3.

ELEVATION: -5° to +24°.

MUZZLE VELOCITY: 2,756 ft/sec.

TRAVERSE: 80°.

MAX. RANGE: Est. 15,000 yd.

PROJ. WEIGHT (AP): Approximately 22.2 lb.

REMARKS: This gun was about equal to the German 8.8-cm Flak 18 and could destroy any Allied tank in the field at the time. The British estimated its penetration to be 5.63 in. at 500 yards at 0°.

[123]

ITALIAN SELF-PROPELLED GUN: (See figure 62.)

149-MM GUN MODEL 35 ON SPECIAL ANSALDO CHASSIS. SEMOVENTE 149.

EMPLOYMENT: Artillery division.

DATE OF INTRODUCTION: 1942.

MANUFACTURER: Ansaldo.

LENGTH: 21.7 ft.

PITCH OF TRACK: 6 in.

WIDTH: 10 ft.

HEIGHT: 5.5 ft.

GROUND CLEARANCE: 16 in.

TREAD CENTERS: 8.6 ft.

GROUND CONTACT: 147 in.

WIDTH OF TRACK: 15.75 in.

TYPE OF TRACK: Dry pin.

TURRET: None.

ARMOR: Front - .5 in.; side - .5 in.

ARMAMENT: One 149-mm gun model 35, caliber length 40.

REMARKS: This piece was captured in Tunisia in 1943.

[125]

SECTION VI. JAPAN

JAPANESE LIGHT TANK: (See figure 63.)

KEI SENSHA, SHIKI 95.

LIGHT TANK, MODEL 95 (37-MM GUN).

EMPLOYMENT: Armored divisions, independent tank regiments.

DATE OF INTRODUCTION: 1935.

MANUFACTURER: Dowa Jidosha and others.

COMBAT WEIGHT: 8.5 tons.

CREW: 3.

LENGTH: 14.3 ft.

PITCH OF TRACK: 4 in.

WIDTH: 6.75 ft.

NUMBER OF TRACK LINKS: 98.

HEIGHT: 7.25 ft.

TRENCH CROSSING ABILITY: 6 ft.

GROUND CLEARANCE: 15.5 in.

FORDING DEPTH: 39 in.

TREAD CENTERS: 5.95 ft.

OBSTACLE ABILITY: 32 in.

GROUND CONTACT: 97 in.

CLIMBING ABILITY: 40° (84%) slope.

WIDTH OF TRACK: 9.9 in.

GROUND PRESSURE: 8.9 lbs/sq. in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: 110 mi.

FUEL CONSUMPTION: 3.1 mi/gal.

FUEL CAPACITY: 28 gal. in main tank; 8 gal. in auxiliary tank.

SPEED: 30 mph on roads; 14-18 mph cross-country.

ENGINE: Diesel, 6 cylinders, air-cooled, 70 HP (later 120 HP).

STARTER: Electric.

ELECTRICAL SYSTEM: 24-volt.

TRANSMISSION: Straight, sliding gear, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Modified Carden-Lloyd type, with one armored, helical, compression spring per side acting against bell cranks on each of two bogies of two wheels each. Two return rollers with equalizing tension rods.

TURRET: Manually operated.

ARMOR: Front - .55 in.; side - .47 in.; turret front - .47 in.; turret side - .47 in.; mantlet - 2.25 in.

ARMAMENT: One 37-mm tank gun type 94, caliber length 37. Two 7.7-mm type 97 tank machine guns (hull front and turret rear).

MUZZLE VELOCITY (AP): 1,900 ft/sec.

AMMUNITION STOWAGE: 37-mm - 130 rds.
7.7-mm - 2, 970 rds.

PROJ. WEIGHT (37-MM)(AP): 1.54 lb.

REMARKS: Captured on Attu, and was the first Japanese tank to reach Aberdeen, 1943.

[127]

JAPANESE MEDIUM TANK: (See figure 65.)

MEDIUM TANK, TYPE 97 (1937) WITH 47-MM GUN "CHIKA".

IMPROVED VERSION OF TYPE 97 TANK. (OLDER VERSION HAD LOW VELOCITY 57-MM GUNS.)

EMPLOYMENT: Armored division.

DATE OF INTRODUCTION: Spring 1942.

COMBAT WEIGHT: 15 tons.

CREW: 5.

LENGTH: 18.2 ft.

PITCH OF TRACK: 4.9 in.

WIDTH: 7.7 ft.

NUMBER OF TRACK LINKS: 95.

HEIGHT: 7.7 ft.

TRENCH CROSSING ABILITY: 8.25 ft.

GROUND CLEARANCE: 14 in.

FORDING DEPTH: 39 in.

TREAD CENTERS: 6.6 ft.

CLIMBING ABILITY: 30° (57%) slope.

GROUND CONTACT: 138 in.

GROUND PRESSURE: 8.4 lbs/sq. in.

WIDTH OF TRACK: 13 in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: Approximately 130 miles.

FUEL CONSUMPTION: 3.7 gal. per hour at 9.3 miles per hour.

FUEL CAPACITY: 52 gal. in two tanks (Diesel fuel).

SPEED: Approximately 25 mph.

ENGINE: V-12, air-cooled, valve-in-head, Diesel, 170 HP, compression ratio 17.8:1.

STARTER: Electric.

ELECTRICAL SYSTEM: 24-volt starting, 12-volt running.

TRANSMISSION: Sliding pinion, with high- low transfer case, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Six road wheels on each side, front and rear road wheels independently sprung, center wheels sprung in pairs, coil springs used, three return rollers on each side.

TURRET: Hand traverse.

ARMOR: Front - .98 in.; side .8 in.; turret front - 1.3 in.; turret side - 1 in.

ARMAMENT: One 47-mm tank gun type 1. Two 7.7-mm type 97 machine guns.

MUZZLE VELOCITY: 2,700 ft/sec.

AMMUNITION STOWAGE: Gun - 104 rds.
MG - 2, 575 rds.

PROJ. WEIGHT (AP): 3.4 lb.

REMARKS: This was the best of the Japanese tanks. Gun could penetrate 2.7 in. armor at 500 yards at 0 °.

[131]

JAPANESE SELF-PROPELLED GUN: (See figure 66.)

GUN TANK TYPE 1 (HONI I).

75-MM GUN TYPE 90 (19 30) ON TYPE 97 (1937) TANK CHASSIS.

EMPLOYMENT: SP artillery.

DATE OF INTRODUCTION: 1942.

COMBAT WEIGHT: Approximately 15 tons.

CREW: Probably 3.

LENGTH: 18.2 ft.

PITCH OF TRACK: 4.9 in.

WIDTH; 7.7 ft.

NUMBER OF TRACK LINKS: 95.

HEIGHT: 7.7 ft.

TRENCH CROSSING ABILITY: 8.25 ft.

GROUND CLEARANCE: 14 in.

FORDING DEPTH: 39 in.

TREAD CENTERS: 6.6 ft.

CLIMBING ABILITY: 30° (57%) slope.

GROUND CONTACT: 138 in.

GROUND PRESSURE: 8.4 lbs/sq. in.

WIDTH OF TRACK: 13 in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: Approximately 130 miles.

FUEL CONSUMPTION: 3.7 gal. per hour at 9.3 miles per hour.

FUEL CAPACITY: 52 gal. in two tanks (Diesel fuel).

SPEED: Approximately 25 mph.

ENGINE: V-12, air-cooled valve-in-head, Diesel, 170 HP, Compression ratio 17.8:1.

STARTER: Electric.

ELECTRICAL SYSTEM: 24-volt starting, 12-volt running.

TRANSMISSION: Sliding pinion, with high-low transfer case, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Six road wheels each side, front and rear road wheels independently sprung, center wheels sprung in pairs. Coil springs used. Three return rollers each side.

ARMOR: Front - .98 in.; side - .8 in.; superstructure front - 2 in.

ARMAMENT: One 75-mm gun type 90.

ELEVATION: -5° to +25°.

MUZZLE VELOCITY: 2,260 ft/sec.

TRAVERSE: 20°.

MAXIMUM RANGE: 13,000 yd.

PROJ. WEIGHT: 14 1b.

REMARKS: This was the only Japanese armored force vehicle capable of destroying all U. S. tanks committed against them.

[133]

JAPANESE SELF-PROPELLED HOWITZER: (See figure 67.)

150-MM HOWITZER TYPE 38 ON TYPE 97 TANK CHASSIS.

EMPLOYMENT: Armored division artillery.

DATE OF INTRODUCTION: 1942.

COMBAT WEIGHT: 15 tons approximately.

CREW: 5.

LENGTH: 18.2 ft.

PITCH OF TRACK: 4.9 in.

WIDTH: 7.6 ft.

NUMBER OF TRACK LINKS: 95.

HEIGHT: 7.6 ft.

TRENCH CROSSING ABILITY: 8.25 ft.

GROUND CLEARANCE: 14 in.

FORDING DEPTH: 39 in.

TREAD CENTERS: 6.6 ft.

CLIMBING ABILITY: 30° (57%) slope.

GROUND CONTACT: 144 in.

GROUND PRESSURE: Approximately 8 lbs/sq. in.

WIDTH OF TRACK: 13 in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: Approximately 100 miles.

FUEL CONSUMPTION: 3.7 gal. per hour at 9.3 miles per hour.

FUEL CAPACITY: 52 gal. in two tanks (Diesel fuel).

SPEED: 25 mph.

ENGINE: V-12, air-cooled, valve-in-head, Diesel, 170 HP, compression ratio 17.8:1.

STARTER: Electric.

ELECTRICAL SYSTEM: 24-volt starting, 12-volt running.

TRANSMISSION: Sliding pinion, with high-low transfer case, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Six road wheels each side, front and rear road wheels independently sprung, center wheels sprung in pairs. Coil springs used. Three return rollers each side.

TURRET: None.

ARMOR: Front - .63 in.; side - .5 in. — superstructure front - 1 in.; side - .63 in.

ARMAMENT: One 150-mm howitzer type 38, caliber length 12.

ELEVATION: 30°.

MAX. RANGE (HE): 6,500 yd.

PROJ. WEIGHT (HE): 79 lb.

REMARKS: Captured on Okinawa.

[135]

SECTION VII. SOVIET

SOVIET MEDIUM TANK: (See figure 68.)

T 34.

EMPLOYMENT: Armored division.

DATE OF INTRODUCTION: 1940.

MANUFACTURER: Kirov factory.

COMBAT WEIGHT: 32 tons.

CREW: 4.

LENGTH: 19.9 ft.

PITCH OF TRACKS: 7.25 in.

WIDTH: 10 ft.

NUMBER OF TRACK LINKS: 70.

HEIGHT: 8 ft.

TRENCH CROSSING ABILITY: 9. 85 ft.

GROUND CLEARANCE: 15 in.

FORDING DEPTH: 44 in.

TREAD CENTERS: 8 ft.

OBSTACLE ABILITY: 35 in.

GROUND CONTACT: 161 in.

CLIMBING ABILITY: 35° (70%) slope.

WIDTH OF TRACK: 19.75 in.

GROUND PRESSURE: 10 lbs/sq. in.

TYPE OF TRACK: Dry pin. (Every other track shoe has lug for drive wheel)

RADIUS OF ACTION: 280 miles on roads; 161 miles cross-country.

FUEL CONSUMPTION: Approximately 1.9 mi/gal on roads.

FUEL CAPACITY: 147 gal.

SPEED: 33 mph max.; 12 mph cross-country.

ENGINE: V-block, 12 cylinders, 4-cycle, Diesel, 500 HP at 1,800 rpm, liquid-cooled, compression ratio 15:1.

STARTER: Air and electric.

ELECTRICAL SYSTEM: 25-volt and 12-volt.

TRANSMISSION: Constant mesh spur gear, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Christie type, five large road wheels each side, each wheel suspended in movable arm working against a coil spring located inside tank.

TURRET: Hand and electric traverse.

ARMOR: Front - 1.8 in. at 60°; side - 1.8 in. at 40°; turret front - 2.4 in. turret side - 2.5 in. at 30; mantlet - 2.4 in.

ARMAMENT: One 76. 2-mm gun model 40, caliber length 41.5. Two 7.62-mm DT machine guns (bow and coaxial).

MUZZLE VELOCITY (76.2-MM GUN) (AP): 2,172 ft/sec.

PROJ. WEIGHT (76.2-MM) (AP): 14.3 lb.

AMMUNITION STOWAGE: 76.2-mm - 77 rds.
7.62-mm - 2,898 rds

REMARKS: One of the best tanks of World War II combining good firepower with low silhouette, good armor arrangement, and superior mobility. Design thinking goes back to 19 37. Penetration - 3 inches at 100 yards at 0°.

[137]

SOVIET MEDIUM TANK: (See figure 69.)

T 34-85.

EMPLOYMENT: Armored division.

DATE OF INTRODUCTION: Early 1944 (in production 1943).

COMBAT WEIGHT: 34.4 tons.

CREW: 4 - 5.

LENGTH: 20.2 ft.

PITCH OF TRACK: 7 in.

WIDTH: 9.9 ft.

NUMBER OF TRACK LINKS: 72.

HEIGHT: 9 ft.

TRENCH CROSSING ABILITY: 8.2 ft.

GROUND CLEARANCE: 15 in.

FORDING DEPTH: 47 in.

TREAD CENTERS: 8.1 ft.

OBSTACLE ABILITY: 30 in.

GROUND CONTACT: 158 in.

CLIMBING ABILITY: 35° (70%) slope.

WIDTH OF TRACK: 20.1 in.

GROUND PRESSURE: 10.8 lbs/sq. in.

TYPE OF TRACK: Dry pin. (Every other track shoe has lug for drive wheel.)

RADIUS OF ACTION: 250 miles on roads; 155 miles cross-country.

FUEL CONSUMPTION: Approximately 1.7 mi/gal on roads.

FUEL CAPACITY: 147 gal.( in 8 interior tanks). (Outer reserve tanks 25 gal. each.)

SPEED: 33 mph max; 5-10 mph cross-country.

ENGINE: V-block, 12 cylinders, 4-cycle, Diesel, 500 HP at 1,800 rpm, liquid-cooled, compression ratio 15:1.

STARTER: Air and electric.

ELECTRICAL SYSTEM: 24-volt and 12-volt.

TRANSMISSION: Constant mesh spur gear, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Christie type, five large road wheels each side, each wheel suspended on movable arm working against a coil spring located inside tank.

TURRET: Hand and electric traverse.

ARMOR: Front - 1.8 in. at 60°; side - 1.8 in. at 40°; turret front - 3.7 in.; turret side 3.5 in.; mantlet - 2.3 in.

ARMAMENT: One 85-mm gun model 1944, caliber length 53. Two 7.62-mm DT machine guns (bow and coaxial).

MUZZLE VELOCITY (85-MM GUN) (AP): 2,600 ft/sec.

PROJ. WEIGHT (85-MM) (AP): 20.3 1b.

AMMUNITION STOWAGE: 85-mm - 56 rds. 7.62-mm - 1,890 rds.

REMARKS: In this tank the Soviets achieved a tremendous increase in fire power with but little additional weight. Penetration 4.7 inches at 100 yd. at 0 °.

[139]

SOVIET HEAVY TANK: (See figure 70.)

KV I C.

EMPLOYMENT: Armored division.

DATE OF INTRODUCTION: 19 39.

MANUFACTURER: Kirov factory.

COMBAT WEIGHT: 52 tons.

CREW: 5.

LENGTH: 22 ft.

PITCH OF TRACK: 6.5 in.

WIDTH: 10.8 ft.

NUMBER OF TRACK LINKS: 86.

HEIGHT: 9 ft.

TRENCH CROSSING ABILITY: 12 ft.

GROUND CLEARANCE: 16 in.

FORDING DEPTH: 60 in.

TREAD CENTERS: 8.6 ft.

OBSTACLE ABILITY: 35.5 in.

GROUND CONTACT: 179 in.

CLIMBING ABILITY: None.

WIDTH OF TRACK: 27.75 in.

GROUND PRESSURE: 10.5 lbs/sq. in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: 208 miles on roads; 124 miles cross-country.

FUEL CONSUMPTION: Approximately 1.3 mi/gal on roads.

FUEL CAPACITY: 159 gal.

SPEED: 22 mph max.; 8-11 mph cross-country.

ENGINE: V-type, 12 cylinders, 600 HP at 2,000 rpm, liquid-cooled, Diesel.

STARTER: Air and electric.

TRANSMISSION: Five speeds forward, one reverse, trimobile type.

STEERING: Clutch brake.

SUSPENSION: Torsion bar, six individually sprung road wheels and three return rollers on each side.

TURRET: Hand and electric traverse.

ARMOR: Front - 3.5 + 1.4 in.; side - 3 in. (with 3-in. plate welded to hull where turret joins hull); turret: front - 4.5 in.; side - 3 in.; mantlet - 3.3 in.

ARMAMENT: One 76.2-mm gun model 1940, caliber length 41.5. Three 7.62-mm DT machine guns (bow, coaxial, and rear turret).

MUZZLE VELOCITY (76.2-MM GUN) (AP): 2,172 ft/sec.

PROJ. WEIGHT (76.2-MM)(AP): 14.3 lb.

AMMUNITION STOWAGE: Gun - 111 rds.
MG - 3,024 rds.

REMARKS: Forerunner design of the now famous JS III, or supertank of the present era.

[141]

SOVIET SELF-PROPELLED GUN; (See figure 71.)

SU-76.

EMPLOYMENT: Infantry tank destroyer units.

DATE OF INTRODUCTION: 1943.

COMBAT WEIGHT: 12.3 tons.

CREW: 4.

LENGTH: 16.2 ft.

PITCH OF TRACK: 4.5 in.

WIDTH: 8.9 ft.

NUMBER OF TRACK LINKS: 89.

HEIGHT: 7.1 ft.

TRENCH CROSSING ABILITY: 6.5 ft.

GROUND CLEARANCE: 12.5 in.

FORDING DEPTH: 35 in.

TREAD CENTERS: 7.9 ft.

OBSTACLE ABILITY: 26 in.

GROUND CONTACT: 130 in.

CLIMBING ABILITY: 25° (47%) slope.

WIDTH OF TRACK: 11.75 in.

GROUND PRESSURE: 8.1 lbs/sq. in.

TYPE OF TRACK: Dry pin.

RADIUS OF ACTION: 280 miles on roads; 185 miles cross-country.

FUEL CONSUMPTION: Approximately 2.4 mi/gal on roads; 1.6 mi/gal cross-country.

FUEL CAPACITY: 116 gal.

SPEED: 28 mph max.

ENGINE: Two, 6 cylinders, gasoline, 70 HP per engine, liquid-cooled (standard Dodge type)

STARTER: Electric.

TRANSMISSION: Constant mesh, four speeds forward, one reverse.

STEERING: Clutch brake.

SUSPENSION: Torsion bar, six road wheels each side, three return rollers each side.

ARMOR: Front - 1 in. at 50°; superstructure - .4 - .6 in.

ARMAMENT: One 76.2-mm gun model 42/43, caliber length 41.5.

ELEVATION: - 3 +25°.

MUZZLE VELOCITY (AP): 2172 ft/sec.

TRAVERSE: 32°.

MAX. RANGE (HE): 12,580 yd.

PROJ. WEIGHT (AP): 14.3 lb.

AMMUNITION STOWAGE: 62 rds.

REMARKS: A self-propelled field gun in effect, using an obsolete light tank chassis (T-70).

[143]