SECTION VIII. UNITED STATES
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U. S. LIGHT TANK: (See figure 72.) |
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DATE OF INTRODUCTION: 1918. |
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MANUFACTURER: Ford Motor Co. |
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COMBAT WEIGHT: 3.4 tons (unloaded). |
CREW: 2. |
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LENGTH: 13.8 ft. |
PITCH OF TRACK: 7 in. |
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WIDTH: 5.5 ft. |
NUMBER OF TRACK LINKS: 40. |
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HEIGHT: 5.3 ft. |
GROUND PRESSURE: 6.4 lbs/sq. in. |
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GROUND CLEARANCE: 11 in. |
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TREAD CENTERS: 4.8 ft. |
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GROUND CONTACT: 75 in. |
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WIDTH OF TRACK. 7 in. |
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TYPE OF TRACK: Steel, dry pin. |
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RADIUS OF ACTION: 34 mi. |
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FUEL CONSUMPTION: 2 mi/gal. |
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FUEL CAPACITY: 17 gal. |
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SPEED: 8 mph cross-country. |
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ENGINE: Ford, two engines, 4 cylinders, gasoline, liquid-cooled, 45 BHP. | |
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STARTER: Electric. | |
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TRANSMISSION: Planetary, two speeds forward, one reverse. | |
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STEERING: Clutch brake. | |
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SUSPENSION: Leaf springs, six small road wheels and two return rollers are on each side. | |
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TURRET: None, has non-rotating cupola. | |
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ARMOR: Front - .25 in.; side - .5 in. | |
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ARMAMENT: One .30 cal. machine gun. |
AMMUNITION STOWAGE: .30 cal. |
[145]
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U. S. LIGHT TANK: (See figure 73.) | |
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TANK, LIGHT, SKELETON. | |
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EMPLOYMENT: Experimental. | |
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DATE OF INTRODUCTION: 1918. | |
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MANUFACTURER: Pioneer Tractor Co. | |
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COMBAT WEIGHT: 8 tons. |
CREW: 2. |
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LENGTH: 25 ft. |
PITCH OF TRACK: 11 in. |
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WIDTH: 8.4 ft. |
NUMBER OF TRACK LINKS: 60. |
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HEIGHT: 9.5 ft. | |
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TREAD CENTERS: 7.1 ft. | |
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GROUND CONTACT: 125 in. | |
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WIDTH OF TRACK: 7 in. | |
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TYPE OF TRACK: Steel, dry pin. | |
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RADIUS OF ACTION: 34 mi. | |
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FUEL CONSUMPTION: 2 mi/gal. | |
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FUEL CAPACITY: 17 gal. | |
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SPEED: 8 mph on roads, 2-5 mph cross-country. | |
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ENGINE: Beaver twins, 4 cylinders each. | |
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SUSPENSION: Rigid on rollers. | |
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TURRET: Hand traverse. | |
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ARMOR: Front - .5 in.; side - .5 in.; turret front - .5 in.; turret side - .5 in. | |
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ARMAMENT: One .30 cal. machine gun. | |
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REMARKS: Designed to make a light tank which would be capable of crossing wide trenches. | |
[147]
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U. S. HEAVY TANK: (See figure 74.) | |
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MARK VIII. | |
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EMPLOYMENT: For use against highly organized defensive works. | |
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DATE OF INTRODUCTION: 1919 (designed in England - 1917). | |
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MANUFACTURER: Ordnance Department, U.S.A., Rock Island Arsenal. | |
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COMBAT WEIGHT: 43.5 tons. |
CREW: 11. |
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LENGTH: 34.2 ft. |
PITCH OF TRACK: 11.2 in. |
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WIDTH: 12.4 ft. |
NUMBER OF TRACK LINKS: 79. |
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HEIGHT: 10.2 ft. |
TRENCH CROSSING ABILITY: 16 ft. |
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GROUND CLEARANCE: 20.75 in. |
FORDING DEPTH: 34 in. |
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TREAD CENTERS: 5.8 ft. |
OBSTACLE ABILITY: 54 in. |
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GROUND CONTACT: 248 in. |
CLIMBING ABILITY: 40° (84%) slope. |
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WIDTH OF TRACK: 26.5 in. |
GROUND PRESSURE: 6.6 lbs/sq. in. |
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TYPE OF TRACK: Dry pin. | |
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RADIUS OF ACTION: 50 mi. | |
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FUEL CONSUMPTION: Approximately .2 mi/gal. | |
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FUEL CAPACITY: 240 gal. | |
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SPEED: 5.5 mph.(Due to cooling difficulties, the tank could not sustain maximum speed for a long period.) | |
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ENGINE: Liberty, 12 cylinders, V-type, 338 HP, forced-water cooling. | |
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TRANSMISSION: Planetary, two speeds forward, two reverse. | |
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STEERING: Clutch brake. Epicyclic gearboxes. | |
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SUSPENSION: Rigid with rollers. | |
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TURRET: None. | |
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ARMOR: .24 to .63 in. | |
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ARMAMENT: Two 6 pdr, guns, QF Hotchkiss 2.244-in., cal. length 23 (bore and chamber). | |
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MUZZLE VELOCITY (6 PDR): 1,400 ft/sec. | |
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PROJ. WEIGHT (6 PDR): 6 lb. |
AMMUNITION STOWAGE: Gun - 208 rds. |
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REMARKS: A British design called the "Allied" tank intended for U. S. Army use. Built in U.S.A., however, and fitted with British armor plates and British gun. | |
[149]
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U. S. LIGHT TANK: (See figure 75.) | |
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TANK, LIGHT, T1E2. | |
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DATE OF INTRODUCTION: 1929. | |
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MANUFACTURER: Cunningham. | |
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COMBAT WEIGHT: 8.8 tons. |
CREW: 2. |
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LENGTH: 12.8 ft. |
PITCH OF TRACK: 6.75 in. |
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WIDTH: 6.2 ft. |
NUMBER OF TRACK LINKS: 49. |
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HEIGHT: 7.6 ft. |
GROUND PRESSURE: 8.3 lbs/sq. in. |
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GROUND CLEARANCE: 14 in. | |
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TREAD CENTERS: 5 ft. | |
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GROUND CONTACT: 82 in. | |
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WIDTH OF TRACK: 13 in. | |
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TYPE OF TRACK: Steel, self-cleaning. | |
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FUEL CAPACITY: 58.5 gal. | |
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SPEED: 18.2 mph on roads. | |
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ENGINE: Cunningham, 8 cylinders, gasoline, liquid-cooled, 132 BHP at 2,600 rpm. | |
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STARTER: Electric. |
IGNITION: Distributor. |
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TRANSMISSION: Cotta, three speeds forward, one reverse. | |
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STEERING: Clutch brake. | |
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SUSPENSION: Leaf springs, four two-wheeled bogies and three return rollers each side. | |
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TURRET: Hand traverse. | |
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ARMOR: Front - .6 in.; side -.4 in.; turret front - .6 in.; turret side - .25 in. | |
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ARMAMENT: One 37-mm gun M5, caliber length 50. One .30 cal. machine gun M1919A4 (turret). | |
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MUZZLE VELOCITY (37-MM): 2,550 ft/sec. |
AMMUNITION STOWAGE: 37-mm - 104 rds. |
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PROJ. WEIGHT (37-MM): 1.91 lb. | |
[151]
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U. S. LIGHT TANK: (See figure 76.) | |
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M2A3 (MODEL 1938). | |
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EMPLOYMENT: For use by infantry. | |
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DATE OF INTRODUCTION: 19 38. | |
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MANUFACTURER: Rock Island Arsenal. | |
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COMBAT WEIGHT: 10 tons. |
CREW: 4. |
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LENGTH: 14.5 ft. |
PITCH OF TRACK: 5.5 in. |
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WIDTH: 8.2 ft. |
NUMBER OF TRACK LINKS: 66. |
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HEIGHT: 7.4 ft. |
CLIMBING ABILITY: 26° (50%) slope. |
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GROUND CLEARANCE: 14.5 in. |
GROUND PRESSURE: 9 lbs/sq. in. |
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TREAD CENTERS: 6.1 ft. | |
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GROUND CONTACT: 97 in. | |
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WIDTH OF TRACK: 11.6 in. | |
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TYPE OF TRACK: Dry pin, double pin per shoe, rubber cleat. | |
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RADIUS OF ACTION: Approximately 130 miles. | |
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FUEL CONSUMPTION: 2.4 mi/gal. | |
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FUEL CAPACITY: 54 gal. | |
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SPEED: 38 mph on roads; 25.7 mph cross-country. | |
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ENGINE: Continental, model WG70, radial, 7 cylinders, gasoline, 250 HP at 2,400 rpm, air-cooled, compression ratio 6:1. | |
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STARTER: Hand electric inertia, direct electric and cartridge starter. |
IGNITION: Magneto. |
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TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
ELECTRICAL SYSTEM: 12-volt. |
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STEERING: Controlled differential. | |
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SUSPENSION: Volute spring, two double wheel bogies and two return rollers on each side. | |
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TURRET: Two turrets, 180° traverse, hand operated. | |
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ARMOR: Front - .9 in.; side - .6in.; turret front - .9 in. | |
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ARMAMENT: One cal .50 machine gun, M2 (left turret). Two cal .30 machine guns, M1919A4 (bow and right turret). | |
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MUZZLE VELOCITY: .50 cal. - 2,840 ft/sec. |
AMMUNITION STOWAGE: .50 cal. - 1,579 rds. |
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PROJ. WEIGHT: .50 cal. - 710 grains. | |
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CYCLIC RATE OF FIRE: .50 cal. - 400-500 rds/min; .30 cal. - 500 rds/min. | |
[153]
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U. S. LIGHT TANK: (See figure 77.) | |
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TANK, LIGHT, M2A2E3 (DIESEL). | |
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EMPLOYMENT: Armored division. | |
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DATE OF INTRODUCTION: 19 38. | |
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MANUFACTURER: Rock Island Arsenal. | |
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COMBAT WEIGHT: 10.6 tons (unloaded). |
CREW: 4. |
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LENGTH: 12.1 ft. |
PITCH OF TRACK: 5.5 in. |
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WIDTH: 8.1 ft. |
NUMBER OF TRACK LINKS: 72. |
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HEIGHT: 6.9 ft. |
CLIMBING ABILITY: 22° (40%) slope. |
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GROUND CLEARANCE: 16 in. |
GROUND PRESSURE: 7.3 lbs/sq. in. |
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TREAD CENTERS: 6.4 ft. | |
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GROUND CONTACT: 126.5 in. | |
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WIDTH OF TRACK: 11.5 in. | |
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TYPE OF TRACK: Rubber block, double pin shoe (T16E4). | |
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RADIUS OF ACTION: 2 34 mi. | |
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FUEL CONSUMPTION: 3.12 mi/gal. | |
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FUEL CAPACITY: 75 gal. | |
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SPEED: 30 mph on roads; 5-20 mph cross-country. | |
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ENGINE: G. M. Diesel, 6 cylinders, liquid-cooled, 165 BHP at 2,000 rpm, compression ratio 16:1. | |
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TRANSMISSION: Fully automatic, four speeds forward, one reverse. |
IGNITION: Injection. |
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STEERING: Controlled differential. | |
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SUSPENSION: Vertical volute spring, 2 two-wheeled bogies and 3 return rollers are on each side. | |
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TURRET: Manual traverse. | |
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ARMOR: Front - 1 in.; side - .6 in. | |
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ARMAMENT: One .50 cal. machine gun M2. | |
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MUZZLE VELOCITY: .50 cal. - 2,840 ft/sec. |
AMMUNITION STOWAGE: .50 cal. - 2, 137 rds. |
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BULLET WEIGHT: .50 cal. - 710 grains. | |
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REMARKS: A few of these tanks were used in Burma. | |
[155]
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U. S. LIGHT TANK: (See figure 78.) | |
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TANK, LIGHT, M3A1 (DIESEL) "GEN. STUART OR STUART MK IV." | |
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EMPLOYMENT: Armored division. | |
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DATE OF INTRODUCTION: 1941. | |
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MANUFACTURER: American Car & Foundry. | |
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COMBAT WEIGHT: 14.3 tons. |
CREW: 4. |
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LENGTH: 14.6 ft. |
PITCH OF TRACK: 5.5 in. |
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WIDTH: 7.3 ft. |
NUMBER OF TRACK LINKS: 67. |
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HEIGHT: 7.7 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
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GROUND CLEARANCE: 16.5 in. |
FORDING DEPTH: 42 in. |
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TREAD CENTERS: 6.1 ft. |
OBSTACLE ABILITY: 24 in. |
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GROUND CONTACT: 116 in. |
CLIMBING ABILITY: 26° (50%) slope |
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WIDTH OF TRACK: 11.5 in. |
GROUND PRESSURE: 10.6 lbs/sq. in. |
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RADIUS OF ACTION: 84 mi. | |
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FUEL CONSUMPTION: 1.5 mi/gal. | |
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FUEL CAPACITY: 50 gal. | |
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SPEED: 37 mph on roads; 15-20 mph cross-country. | |
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ENGINE: Guiberson Buda Diesel model T-1020 Series 4, air-cooled, 4-cycle single row, radial, 9 cylinders. | |
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STARTER: Electric. |
ELECTRICAL SYSTEM: 12-volt. |
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TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
IGNITION: Injection. |
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STEERING: Controlled differential. |
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SUSPENSION: Two two-wheeled rubber tire bogies on each side are bolted to the hull, support the vehicle on vertical volute springs. Tracks are driven by sprockets on the front provided to maintain constant tension on tracks. Tracks are supported by three return rollers each side. | |
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TURRET: Oilgear hydraulic. |
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ARMOR: Front - 1.5 in.; side - 1 in.; turret mantlet - 1 in. |
front - 1.5 in.; turret side - 1.25 in.; |
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ARMAMENT: One cal .30 M1919A5, two cal .30 M1919A4, one submachine gun cal .45, 1928A1. | |
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MUZZLE VELOCITY: 2,600 ft/sec. |
AMMUNITION STOWAGE: 37-mm - 106 rds. |
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PROJ. WEIGHT: 1.91 lb. | |
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REMARKS: This (and M3) was the first American tank committed in WWII and introduced to the Germans via the lend-lease materiel then being furnished to the British. Its first battle was at Sidi Rezeg, Libya, November 1941. Some models are powered with gasoline engines. | |
[157]
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U. S. LIGHT TANK: (See figure 78.) | |
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TANK, LIGHT, M3A1 (DIESEL) "GEN, STUART OR STUART MK IV." | |
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EMPLOYMENT: Armored division. | |
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DATE OF INTRODUCTION: 1941. | |
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MANUFACTURER: American Car & Foundry. | |
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COMBAT WEIGHT: 14.3 tons. |
CREW: 4. |
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LENGTH: 14.6 ft. |
PITCH OF TRACK: 5.5 in. |
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WIDTH: 7.3 ft. |
NUMBER OF TRACK LINKS: 67. |
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HEIGHT: 7.7 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
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GROUND CLEARANCE: 16.5 in. |
FORDING DEPTH: 42 in. |
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TREAD CENTERS: 6.1 ft. |
OBSTACLE ABILITY: 24 in. |
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GROUND CONTACT: 116 in. |
CLIMBING ABILITY: 26° (50%) slope |
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WIDTH OF TRACK: 11.5 in. |
GROUND PRESSURE: 10.6 lbs/sq. in. |
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RADIUS OF ACTION: 84 mi. | |
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FUEL CONSUMPTION: 1.5 mi/gal. | |
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FUEL CAPACITY: 50 gal. | |
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SPEED: 37 mph on roads; 15-20 mph cross-country. | |
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ENGINE: Guiberson Buda Diesel model T-1020 Series 4, air-cooled, 4-cycle single row, radial, 9 cylinders. | |
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STARTER: Electric. |
ELECTRICAL SYSTEM: 12-volt. |
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TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
IGNITION: Injection. |
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STEERING: Controlled differential. | |
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SUSPENSION: Two two-wheeled rubber tire bogies on each side are bolted to the hull, support the vehicle on vertical volute springs. Tracks are driven by sprockets on the front provided to maintain constant tension on tracks. Tracks are supported by three return rollers each side. | |
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TURRET: Oilgear hydraulic. | |
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ARMOR: Front - 1.5 in.; side - 1 in.; turret front - 1.5 in.; turret side - 1.25 in.; mantlet - 1 in. | |
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ARMAMENT: One cal .30 M1919A5, two cal .30 M1919A4, one submachine gun cal .45, 1928A1. | |
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MUZZLE VELOCITY: 2,600 ft/sec. |
AMMUNITION STOWAGE: 37-mm - 106 rds. |
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PROJ. WEIGHT: 1.91 lb. | |
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REMARKS: This (and M3) was the first American tank committed in WWII and introduced to the Germans via the lend-lease materiel then being furnished to the British. Its first battle was at Sidi Rezeg, Libya, November 1941. Some models are powered with gasoline engines. | |
[157]
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U. S. LIGHT TANK: (See figure 79.) | |
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TANK, LIGHT, M5A1 (37-MM GUN). | |
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EMPLOYMENT: Armored division, armored reconnaissance cavalry. | |
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DATE OF INTRODUCTION: 1942. | |
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MANUFACTURER: American Car & Foundry Co., Cadillac Motor Division (GMC), and Massey Harris Co. | |
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COMBAT WEIGHT: 16.9 tons. |
CREW: 4. |
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LENGTH: 15.9 ft. |
PITCH OF TRACK: 5.5 in. |
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WIDTH: 7.5 ft. |
NUMBER OF TRACK LINKS: 132. |
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HEIGHT: 7.5 ft. |
TRENCH CROSSING ABILITY: 5.3 ft. |
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GROUND CLEARANCE: 15 in. |
FORDING DEPTH: 3 6 in. |
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TREAD CENTERS: 6.1 ft. |
OBSTACLE ABILITY: 18 in. |
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GROUND CONTACT: 120 in. |
CLIMBING ABILITY: 31° (60%) slope. |
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WIDTH OF TRACK: 11.6 in. |
GROUND PRESSURE: 11.4 lbs/sq. in. |
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TYPE OF TRACK: Rubber bushed, double pin. | |
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RADIUS OF ACTION: 160 mi. on roads; 100 mi. (average conditions). | |
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FUEL CONSUMPTION: 1.2 mi/gal (average conditions). | |
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FUEL CAPACITY: 82 gal. | |
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SPEED: 36 mph max.; 20-25 mph cross-country. | |
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ENGINE: Cadillac, V-8, two engines, eight cylinders each, gasoline, liquid-cooled, 260 HP at 3,600 rpm (130 HP per engine), compression ratio 7.1:1. | |
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STARTER: Electric. |
ELECTRICAL SYSTEM: 12-volt. |
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TRANSMISSION: Hydramatic, four forward, one reverse plus two-speed transfer case. |
IGNITION: Distributors. |
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STEERING: Controlled differential. | |
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SUSPENSION: Vertical volute spring, two bogies of two wheels each and three return rollers. Idler wheel rides on ground. | |
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TURRET: Hydraulic and manual traverse. | |
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ARMOR: Front - 1.5 in.; side - 1.1 in.; turret front - .5 in.; turret side - 1.25 in.; mantlet - 2 in. | |
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ARMAMENT: Two caliber .30 M1919A4 and two caliber .30 M1919A5 machine guns. | |
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MUZZLE VELOCITY (37-MM)(AP): 2,600 ft/sec. |
AMMUNITION STOWAGE: 37-mm - 147 rds. |
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PROJ. WEIGHT (37-MM)(AP): 1.9 lb. | |
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REMARKS: The successor to the M3 was introduced a year previously. It is a more versatile tank which was committed at the landings near Casablanca in late 1942. | |
[159]
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U. S. LIGHT TANK: (See figure 80.) | |
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TANK, LIGHT M5A1, (37-MM GUN), WITH FORDING DEVICE. | |
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EMPLOYMENT: Armored division, armored reconnaissance cavalry. | |
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DATE OF INTRODUCTION: 1942. | |
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MANUFACTURER: Cadillac Motor Car Division (GMC). | |
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COMBAT WEIGHT: 15.8 tons. |
CREW: 4. |
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LENGTH: 14.9 ft. |
PITCH OF TRACK: 5.8 in. |
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WIDTH: 8.4 ft. |
NUMBER OF TRACK LINKS: 67. |
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HEIGHT: 7.5 ft. |
TRENCH CROSSING ABILITY: 5.3 ft. |
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GROUND CLEARANCE: 15 in. |
FORDING DEPTH: 30 in. (61 in. with fording device). |
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TREAD CENTERS: 6.1 ft. | |
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GROUND CONTACT: 120 in. |
OBSTACLE ABILITY: 18 in. |
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WIDTH OF TRACK: 11.6 in. (17.9 w/grousers). |
CLIMBING ABILITY: 31° (60%) slope. |
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GROUND PRESSURE: 11.4 lbs/sq. in. (7.4 lbs/sq. in. w/grousers). | |
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TYPE OF TRACK: Dry pin, double pin shoe, rubber cleat. | |
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RADIUS OF ACTION: 160 on roads; 100 (average conditions). | |
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FUEL CONSUMPTION: 1.2 mi/gal (average conditions). | |
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FUEL CAPACITY: 89 gal. | |
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SPEED: 40 mph max.; 20-25 mph cross-country. | |
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ENGINE: Cadillac, V-8, two engine, eight cylinders each, gasoline, liquid-cooled, 260 HP at 3, 600 rpm (130 HP per engine), compression ratio 7.1:1. | |
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STARTER: Electric. |
ELECTRICAL SYSTEM: 12-volt. |
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TRANSMISSION: Hydramatic, six speeds forward, one reverse. |
IGNITION: Distributors. |
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STEERING: Controlled differential. |
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SUSPENSION: Vertical volute spring, two bogies of two wheels each and three return rollers. Idler wheel rides on ground. | |
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TURRET: Hydraulic and manual traverse. | |
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ARMOR: Front - 1.5 in.; side - 1.1 in.; turret front - 1.5 in.; side 1.25 in.; mantlet 2 in. | |
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ARMAMENT: One 37-mm gun M6, caliber length 53. Two cal .30 M1919A4 machine guns (coaxial and bow). | |
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MUZZLE VELOCITY (37-MM) (AP): 2,600 ft/sec. | |
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PROJ. WEIGHT (37-MM) (AP): 1.9 lb. |
AMMUNITION STOWAGE: 37-mm - 123 rds. |
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REMARKS: Vehicle equipped with special device for fording. Grousers added for better floatation on soft ground. The succeeding light tank to the M3 introduced a year previously - a more versatile tank and committed by the Americans at the landings near Casablanca in late 1942. | |
[161]
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U.S. LIGHT TANK: (See figure 81.) | |
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TANK, LIGHT, M24. | |
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EMPLOYMENT: Armored division. | |
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DATE OF INTRODUCTION: 1943. | |
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MANUFACTURER: Cadillac Motor Car Division (GMC) and Massey Harris Co. | |
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COMBAT WEIGHT: 20.3 tons. |
CREW: 4. |
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LENGTH: 16.5 ft. |
PITCH OF TRACK: 5.5 in. |
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WIDTH: 9.5 ft. |
NUMBER OF TRACK LINKS: 75. |
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HEIGHT: 9.1 ft. |
TRENCH CROSSING ABILITY: 8.25 ft. |
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GROUND CLEARANCE: 18 in. |
FORDING DEPTH: 40 in. |
|
TREAD CENTERS: 8 ft. |
OBSTACLE ABILITY: 36 in. |
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GROUND CONTACT: 120 in. |
CLIMBING ABILITY: 31° (60%) slope. |
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WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 10.5 lbs/sq. in. |
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TYPE OF TRACK: Steel-rubber bushed, single pin. | |
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RADIUS OF ACTION: 100 mi. | |
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FUEL CONSUMPTION: .9 mi/gal. | |
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FUEL CAPACITY: 110 gal. | |
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SPEED: 34 mph on roads; 20-30 mph cross-country. | |
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ENGINE: Two Cadillac V8 engines, liquid-cooled, gasoline, 110 HP at 3,600 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24 volts. |
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TRANSMISSION: Planetary, four speeds forward, no reverse, plus Cadillac helical transfer case with two speeds forward, two reverse. |
IGNITION: Distributor. |
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STEERING: Controlled differential. | |
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SUSPENSION: Five rubber tired road wheels each side on torsion bars. Track driven from rear. Three return rollers each side. | |
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TURRET: Hydraulic and manual traverse. | |
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ARMOR: Front - 1 in.; side - 1 in.; turret front - 1 in.; turret side - 1 in. | |
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ARMAMENT: One 75-mm gun M6, caliber length 40. Two .30 cal. machine guns M1919A4 (bow and coaxial). One .50 cal. machine gun M2 (AA mount on top of turret). | |
|
MUZZLE VELOCITY (75-MM): 2,050 ft/sec. |
AMMUNITION STOWAGE: 75-mm - 48 rds. |
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PROJ. WEIGHT (75-MM): 14.4 lb. | |
|
REMARKS: This tank reflects influences of the Libyan battlefield needs plus the contours of the Russian T34, then in use. It is the first tank of such light weight to mount a specially designed 75-mm tank gun. Its ammunition is the same as used in the original M2 and M3 tank guns. It not only saw service in ETA and the island campaigns during World War II but again in Korea. | |
[163]
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U. S. LIGHT TANK: (See figure 82.) | |
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TANK, LIGHT, M22 (37-MM GUN), AIRBORNE (T9E1). | |
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EMPLOYMENT: Intended for airborne operations. | |
|
DATE OF INTRODUCTION: 1943. | |
|
MANUFACTURER: Marmon - Herrington. | |
|
COMBAT WEIGHT: 8.5 tons. |
CREW: 3. |
|
LENGTH: 12.9 ft. |
PITCH OF TRACK: 3.1 in. |
|
WIDTH: 7.5 ft. |
NUMBER OF TRACK LINKS: 106. |
|
HEIGHT: 6.1 ft. |
TRENCH CROSSING ABILITY: 5.4 ft. |
|
GROUND CLEARANCE: 9.5 in. |
FORDING DEPTH: 42 in. |
|
TREAD CENTERS: 5.9 ft. |
OBSTACLE ABILITY: 12.4 in. |
|
GROUND CONTACT: 109 in. |
CLIMBING ABILITY: 32° (63%) slope. |
|
WIDTH OF TRACK: 11.5 in. |
GROUND PRESSURE: 6.7 lbs/sq. in. |
|
TYPE OF TRACK: Dry pin. | |
|
RADIUS OF ACTION: 135 mi. | |
|
FUEL CONSUMPTION: 2.5 mi/gal. | |
|
FUEL CAPACITY: 57 gal. | |
|
SPEED: 40 mph on roads. | |
|
ENGINE: 162 HP, air-cooled, 6 cylinders, horizontally opposed. | |
|
STARTER: Electric. | |
|
TRANSMISSION: Four speeds forward, one reverse. | |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute springs, 2 bogies of 2 wheels each and 2 return rollers each side. Idler wheel rides on ground. | |
|
TURRET: Hand traverse. | |
|
ARMOR: Front - 1.0 in.; side - 0.4 in.; turret side - 1.0 in.; turret front - 0.6 in.; mantlet -0.6 in. | |
|
ARMAMENT: One 37-mm gun M6, caliber length 53. One .30 cal. MG M1919A4 (coaxial). | |
|
MUZZLE VELOCITY (37-MM) (AP): 2,600 ft/sec. | |
|
PROJ. WEIGHT (37-MM)(AP): 1.9 lb. |
AMMUNITION STOWAGE: 37-mm - 50 rds. |
|
REMARKS: A WW II attempt at making a tank light enough to be transported by 4-engine transport aircraft. This tank, known as the Locust, was used by the British forces in Normandy landing. | |
[165]
|
U. S. MEDIUM TANK: (See figure 83.) | |
|
TANK, MEDIUM A, 1922. | |
|
EMPLOYMENT: Experimental. | |
|
DATE OF INTRODUCTION: 1922. | |
|
MANUFACTURER: Ordnance Department, Rock Island Arsenal. | |
|
COMBAT WEIGHT: 25.5 tons. |
CREW: 4. |
|
LENGTH: 25.9 ft. |
PITCH OF TRACK: 8.25 in. |
|
WIDTH: 8.8 ft. |
NUMBER OF TRACK LINKS: 80. |
|
HEIGHT: 10 ft. |
GROUND PRESSURE: 10 lbs/sq. in. |
|
GROUND CLEARANCE: 22 in. | |
|
TREAD CENTERS: 7.2 ft. | |
|
GROUND CONTACT: 143 in. | |
|
WIDTH OF TRACK: 18 in. | |
|
TYPE OF TRACK: Light wooden shoes within brackets pivoted at center and held by coil spring at each side. | |
|
FUEL CONSUMPTION: 1 mi/gal. | |
|
FUEL CAPACITY: 160 gal. | |
|
SPEED: 15.7 mph max.; cross-country 10.1 mph. | |
|
ENGINE: Murray and Tregurtha, marine, 6 cylinders, 195 HP at 1,250 rpm, forced-water cooling. | |
|
TRANSMISSION: Planetary and sliding gear, two speeds forward and one speed reverse. Pneumatic control of transmission and brakes. | |
|
STEERING: Epicyclic. | |
|
SUSPENSION: A chain type was first installed, the chain being replaced by a cable. Suspension found unsatisfactory. | |
|
ARMOR: .375 to 1.0 in. | |
|
ARMAMENT: One 6 Pdr gun, QF Hotchkiss, 2.244-inch, cal. length 23 (bore and chamber). Also two cal .30 machine guns. | |
|
MUZZLE VELOCITY (6 PDR): 1,400 ft/sec. |
AMMUNITION STOWAGE: Gun - .146 rds. |
|
PROJ. WEIGHT (6 PDR): 6 lb. | |
|
REMARKS: Originally had 47-mm and .50 cal. machine gun coaxial and 3 7-mm gun and .30 cal. machine gun in hull. Modified in 1931. | |
[167]
|
U. S. MEDIUM TANK: (See figure 83.) | |
|
TANK, MEDIUM A, 1922. | |
|
EMPLOYMENT: Experimental. | |
|
DATE OF INTRODUCTION: 1922. | |
|
MANUFACTURER: Ordnance Department, Rock Island Arsenal. | |
|
COMBAT WEIGHT: 25.5 tons. |
CREW: 4. |
|
LENGTH: 25.9 ft. |
PITCH OF TRACK: 8.25 in. |
|
WIDTH: 8.8 ft. |
NUMBER OF TRACK LINKS: 80. |
|
HEIGHT: 10 ft. |
GROUND PRESSURE: 10 lbs/sq. in. |
|
GROUND CLEARANCE: 22 in. | |
|
TREAD CENTERS: 7.2 ft. | |
|
GROUND CONTACT: 143 in. | |
|
WIDTH OF TRACK: 18 in. | |
|
TYPE OF TRACK: Light wooden shoes within brackets pivoted at center and held by coil spring at each side. | |
|
FUEL CONSUMPTION: 1 mi/gal. | |
|
FUEL CAPACITY: 160 gal. | |
|
SPEED: 15.7 mph max.; cross-country 10.1 mph. | |
|
ENGINE: Murray and Tregurtha, marine, 6 cylinders, 195 HP at 1,250 rpm, forced-water cooling. | |
|
TRANSMISSION: Planetary and sliding gear, two speeds forward and one speed reverse. Pneumatic control of transmission and brakes. | |
|
STEERING: Epicyclic. | |
|
SUSPENSION: A chain type was first installed, the chain being replaced by a cable. Suspension found unsatisfactory. | |
|
ARMOR: .375 to 1.0 in. | |
|
ARMAMENT: One 6 Pdr gun, QF Hotchkiss, 2.244-inch, cal. length 23 (bore and chamber). Also two cal .30 machine guns. | |
|
MUZZLE VELOCITY (6 PDR): 1,400 ft/sec. |
AMMUNITION STOWAGE: Gun - 146 rds. |
|
PROJ. WEIGHT (6 PDR): 6 lb. | |
|
REMARKS: Originally had 47-mm and .50 cal. machine gun coaxial and 37-mm gun and .30 cal. machine gun in hull. Modified in 1931. | |
[167]
|
U. S. MEDIUM TANK: (See figure 84.) | |
|
TANK, MEDIUM. T2. | |
|
DATE OF INTRODUCTION: 1929. | |
|
MANUFACTURER: Cunningham (total production - 1). | |
|
COMBAT WEIGHT: 15.6 tons. |
CREW: 4. |
|
LENGTH: 16 ft. |
PITCH OF TRACK: 5.25 in. |
|
WIDTH: 8 ft. |
NUMBER OF TRACK LINKS: 76. |
|
HEIGHT: 9.1 ft. | |
|
GROUND CLEARANCE: 17.25 in. |
CLIMBING ABILITY: 35° (70%) slope. |
|
TREAD CENTERS: 6.75 ft. |
GROUND PRESSURE: 9.3 lbs/sq. in. |
|
GROUND CONTACT: 112 in. | |
|
WIDTH OF TRACK: 15 in. | |
|
TYPE OF TRACK: Steel, open, double pin shoe. | |
|
RADIUS OF ACTION: 90 miles. | |
|
FUEL CONSUMPTION: .95 mi/gal. | |
|
FUEL CAPACITY: 94 gal. | |
|
SPEED: 25 mph on roads; 5-15 mph cross-country. | |
|
ENGINE: Liberty, 12 cylinders, gasoline, liquid-cooled, 312 BHP at 1,750 rpm. | |
|
STARTER: Electric. | |
|
TRANSMISSION: Selective and Cotta, four speeds forward and one reverse. | |
|
STEERING: Clutch brake. | |
|
SUSPENSION: Vertical springs, six two-wheeled bogies and four return rollers each side. | |
|
TURRET: Manual traverse. | |
|
ARMOR: Front - .18 in.; side - .5 in.; turret front - .75 in.; turret side - .75 in. | |
|
ARMAMENT: One 47-mm semiautomatic gun, caliber length 50, (hull and turret). Two .30 cal. machine guns M1919A4 (bow and AA). One .50 cal. machine gun M2 (turret). | |
|
MUZZLE VELOCITY (37-MM): 2,550 ft/sec. |
AMMUNITION STOWAGE: 37-mm - 75 rds. |
|
PROJ. WEIGHT (37-MM): 1.91 lb. | |
|
REMARKS: Originally had 47-mm and .50 cal. machine gun coaxial and 37-mm gun and .30 cal. machine gun in hull. Modified in 1931. | |
[169]
|
U. S. MEDIUM TANK T3: (See figure 85.) | |
|
T3 (CHRISTIE MODEL 1931) CONVERTIBLE. | |
|
EMPLOYMENT: Armored force. | |
|
DATE OF INTRODUCTION: 1931 (experimental, not adopted). | |
|
MANUFACTURER: U. S. Wheel Track Layer Corp. (total production - 7). | |
|
COMBAT WEIGHT: 11.1 tons. |
CREW: 3. |
|
LENGTH: 18 ft. |
PITCH OF TRACK: 10 in. |
|
WIDTH: 7.3 ft. |
NUMBER OF TRACK LINKS: 46. |
|
HEIGHT: 7.5 ft. |
TRENCH CROSSING ABILITY: 7 ft. |
|
GROUND CLEARANCE: 13.5 in. |
FORDING DEPTH: 36 in. |
|
TREAD CENTERS: 6.4 ft. |
CLIMBING ABILITY: 35° (70%) slope. |
|
GROUND CONTACT: 128 in. |
GROUND PRESSURE: 8.6 lbs/sq. in. |
|
WIDTH OF TRACK: 10.1 in. | |
|
TYPE OF TRACK: Dry pin. | |
|
RADIUS OF ACTION: 150 miles on tracks) 250 miles on wheels. | |
|
FUEL CONSUMPTION: Approximately 1.2 mi/gal on tracks; 2.8 mi/gal on wheels. | |
|
FUEL CAPACITY: 89 gal. | |
|
SPEED: 27 mph on tracks; 47 mph on wheels. | |
|
ENGINE: Liberty, 12 cylinders, V-type, 338 HP, forced-water cooling. | |
|
TRANSMISSION: Sliding gear, four speeds forward, one reverse. | |
|
STEERING: Clutch brake. | |
|
SUSPENSION: Four large weight bearing wheels on each side each with dual rubber tires, mounted upon a pivoted arm bearing a long adjustable coil spring. The liberal compression amplitude gives each of these wheels an independent maximum vertical movement of about 14 inches. Tracks could be removed and carried in shelves at sides of tank for traveling on wheels. When running on wheels the power is transmitted from the main driving wheels to the rear road wheels through a chain drive. When operating on tracks the chain sprocket on each side of the driving wheels is replaced by four rollers which drive the tracks by means of the driving lugs carried on alternated track links. | |
|
TURRET: Hand traverse. | |
|
ARMOR: Front - .5 in.; sides - .6 in.; turret - .6 in. | |
|
ARMAMENT: One 37-mm gun and one .30 cal. machine gun. | |
|
MUZZLE VELOCITY: .50 cal. - 2,840 ft/sec. |
AMMUNITION STOWAGE: 37-mm - 126 rds. |
|
PROJ. WEIGHT: .50 cal. - 710 grains. | |
|
REMARKS: Two of these vehicles were sold to Russia. The Russians built Christie type tanks and later incorporated the suspension principle in the T34. When armed with .50 cal. machine gun in place of 37-mm gun, this vehicle was known as combat car T1. | |
[171]
|
U. S. MEDIUM TANK: (See figure 86.) | |
|
TANK, MEDIUM, T4 (CONVERTIBLE). | |
|
DATE OF INTRODUCTION: 1936 (sixteen produced during 1935-1936). | |
|
MANUFACTURER: Rock Island Arsenal. | |
|
COMBAT WEIGHT: 13.5 tons. |
CREW 4. |
|
LENGTH: 16.1 ft. |
PITCH OF TRACK: 4.75 in. |
|
WIDTH: 8.2 ft. |
NUMBER OF TRACK LINKS: 85. |
|
HEIGHT: 7.1 ft. (on wheels); | |
|
7.25 ft. (on tracks). |
FORDING DEPTH: 35.75 in. (tracks); |
|
GROUND CLEARANCE: 16.25 in. (track); 13.75 in. (wheels). | |
|
OBSTACLE ABILITY: 15 in. | |
|
TREAD CENTERS: 7.1 ft. |
GROUND PRESSURE: 10.6 lbs/sq. in. |
|
GROUND CONTACT: 106 in. | |
|
WIDTH OF TRACK: 12 in. | |
|
TYPE OF TRACK: Steel, rubber bushed. | |
|
RADIUS OF ACTION: 55 miles on tracks; 118 miles on wheels. | |
|
FUEL CONSUMPTION: 1.66 mi/gal. | |
|
FUEL CAPACITY: 41.5 gal. | |
|
SPEED: 35 mph on roads; 15-20 mph cross-country. | |
|
ENGINE: Continental, seven cylinders, air-cooled, 268 BHP at 2,400 rpm, compression ratio 6.1 to 1. | |
|
STARTER: Electric. | |
|
TRANSMISSION: Constant mesh. | |
|
STEERING: Controlled differential (tracks); gear and pinion (wheels). | |
|
SUSPENSION: Coil spring, individual suspension, four large road wheels each side. Track returns over top of road wheels. | |
|
TURRET: Manual traverse. | |
|
ARMOR: Front - .6 in.; side - .5 in.; turret front - .6 in.; turret side - .25 in. | |
|
ARMAMENT: One .50 cal. machine gun M2
(turret). | |
|
MUZZLE VELOCITY: .50 cal. - 2,840 ft/sec. | |
|
BULLET WEIGHT: .50 cal. - 710 grains. |
AMMUNITION STOWAGE: .50 cal. - 639 rds. |
|
REMARKS: Based on convertible design of combat car T4. Chassis strengthened to carry increased armor. | |
[173]
|
U. S. MEDIUM TANK, T5E1: (See figure 87.) | |
|
TANK, MEDIUM, T5. | |
|
EMPLOYMENT: Armored division. | |
|
DATE OF INTRODUCTION: 19 38. | |
|
MANUFACTURER: Rock Island Arsenal. | |
|
COMBAT WEIGHT: \5 tons. | |
|
LENGTH: 17.25 ft. |
PITCH OF TRACK: 5.5 in. |
|
WIDTH: 8.2 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 9 ft. |
TRENCH CROSSING ABILITY: 7.6 ft. |
|
GROUND CLEARANCE: 16 in. |
FORDING DEPTH: 52 in. |
|
TREAD CENTERS: 6.7 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 140.25 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 11.6 in. |
GROUND PRESSURE: 9.3 lbs/sq. in. |
|
TYPE OF TRACK: Rubber block or rubber bushed, double pin shoe. | |
|
RADIUS OF ACTION: 125 mi. | |
|
FUEL CONSUMPTION: 1 mi/gal. | |
|
FUEL CAPACITY: 125 gal. | |
|
SPEED: 30.6 mph on roads; 20.8 mph cross-country. | |
|
ENGINE: Continental, radial, seven cylinders, gasoline, air-cooled, 250 BHP at 2,400 rpm, compression ratio 6.1:1. | |
|
STARTER: Electric. |
IGNITION: Distributor. |
|
TRANSMISSION: Constant mesh, five speeds forward, one reverse. | |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute spring, three two-wheel bogies and three return rollers each side. | |
|
TURRET: Hand traverse. | |
|
ARMOR: Front - 1 in.; side - 1 in.; turret front - 1 in.; turret side - 1 in. | |
|
ARMAMENT: Two 37-mm guns M6, caliber length 53 (turret). Six .30 cal. machine guns M1919A4 (bow and front and rear sponsons). | |
|
MUZZLE VELOCITY (37-MM): 2,600 ft/sec. |
AMMUNITION STOWAGE: 37-mm. |
|
PROJ. WEIGHT (37-MM): 1.91 lb. | |
|
REMARKS: Designed to employ many of the same parts as the M3 light tank. The T5 had long 37-mm gun, the T5E1 two short 37-mm guns. The T5 had larger engine, wider tracks and the T5E2 contained a pack howitzer in hull. | |
[175]
|
U. S. MEDIUM TANK: (See figure 88.) | |
|
TANK, MEDIUM, M2A1, (37-MM GUN). | |
|
EMPLOYMENT: Armored battalions. | |
|
DATE OF INTRODUCTION: 19 39. | |
|
MANUFACTURER: Rock Island Arsenal. | |
|
COMBAT WEIGHT: 19 tons. |
CREW: 6. |
|
LENGTH: 17.7 ft. |
PITCH OF TRACK: 5. 5 in. |
|
WIDTH: 8.6 ft. |
NUMBER OF TRACK LINKS: 83. |
|
HEIGHT: 9.4 ft. |
GROUND PRESSURE: 9.6 lbs/sq. in. |
|
GROUND CLEARANCE: 17 in. | |
|
TREAD CENTERS: 7 ft. | |
|
GROUND CONTACT: 142 in. | |
|
WIDTH OF TRACK: 14 in. | |
|
TYPE OF TRACK: Dry pin, double pin per shoe, rubber cleat. | |
|
RADIUS OF ACTION: 130 mi. | |
|
FUEL CONSUMPTION: .97 mi/gal. | |
|
FUEL CAPACITY: 136 gal. | |
|
SPEED: 30 mph on roads, 17 mph cross-country. | |
|
ENGINE: Wright, radial, gasoline, nine cylinders, 350 HP at 2,400 rpm, air-cooled, compression ratio 6.3:1. | |
|
TRANSMISSION: Constant mesh, five speeds forward, one reverse. | |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute spring, three bogies of two wheels each and three return rollers each side. | |
|
TURRET: Hand traverse. | |
|
ARMOR: Front - 1 in.; side - 1 in.; turret - 1 in.; mantlet - 2 in. | |
|
ARMAMENT: One 37-mm gun M6, caliber length 5 3. Eight cal. 30 M1919A4 machine guns. | |
|
MUZZLE VELOCITY (37-MM) (AP): 2,600 ft/sec. | |
|
PROJ. WEIGHT (37-MM) (AP): 1.9 lb. |
AMMUNITION STOWAGE: 37-mm - 200 rds. |
|
REMARKS: Typical American design thinking of the 1938 period, which led to maximum firepower. A good power plant but little else. | |
[177]
|
U. S. MEDIUM TANK M3A1 LEE MK2: (See figure 89.) | |
|
TANK, MEDIUM, M3A1. | |
|
EMPLOYMENT: Armored division. | |
|
DATE OF INTRODUCTION: 1941. | |
|
MANUFACTURER: American Locomotive Co., Baldwin Locomotive Works, and Detroit Arsenal. | |
|
COMBAT WEIGHT: 32 tons. |
CREW: 7. |
|
LENGTH: 18.5 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 8.95 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 10.25 ft. |
TRENCH CROSSING ABILITY: 7.6 ft. |
|
GROUND CLEARANCE: 17.1 in. |
FORDING DEPTH: 42 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 147 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 13.5 lbs/sq. in. |
|
TYPE OF TRACK: Rubber block or rubber bushed, double pin shoe. | |
|
RADIUS OF ACTION: 120 mi. (gasoline); 140 mi. (Diesel). | |
|
FUEL CONSUMPTION: .6 mi/gal (gasoline); .8 mi/gal (Diesel). | |
|
FUEL CAPACITY: 185 gal. (gasoline); 175 gal. (Diesel). | |
|
SPEED: 25 mph on roads; 4-20 mph cross-country. | |
|
ENGINE: Guiberson Diesel, 9 cylinders, air-cooled, 350 BHP at 2,400 rpm; or Wright Whirlwind, gasoline, 9 cylinders, radial, air-cooled, aviation type, 420 HP at 2,000 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24 volts. |
|
TRANSMISSION: Three two-wheeled rubber tire bogies each side, bolted to the hull, support the vehicle on vertical volute springs. Tracks driven by sprockets on front provided to maintain constant track tension. Three return rollers each side. |
IGNITION: Injection (Diesel) or magneto (gasoline). |
|
TURRET: Hydraulic or manual traverse. | |
|
ARMOR: Front - 2 in.; side - 1.5 in.; turret front - 2 in.; turret side 2 in. | |
|
ARMAMENT: One 75-mm gun M2, caliber length 31, right front. One 37-mm gun M6, caliber length 53, turret. Three .30 cal. machine guns, M1919A4 and M1919A5 (turret bow and cupola). | |
|
MUZZLE VELOCITY: 75-mm - 1,850 ft/sec. 37-mm - 2,600 ft/sec. | |
|
PROJ. WEIGHT: 75-mm - 14.4 lb. 37-mm - 1.9 1 lb. |
AMMUNITION STOWAGE: 75-mm - 50 rds. |
|
REMARKS: Both Diesel and gasoline engines used in this series. This (and M3) was the first American tank committed in WW II and introduced to the Germans via the lend-lease materiel then being furnished to the British. Its first battle was at Sidi Rezeg, Libya, November 1941. | |
[179]
|
U. S. MEDIUM TANK: (See figure 91.) | |
|
TANK, MEDIUM, M3A5. | |
|
EMPLOYMENT: Armored division. | |
|
DATE OF INTRODUCTION: 1942. | |
|
MANUFACTURER: American Locomotive Co., Baldwin Locomotive Works, Detroit Arsenal. | |
|
COMBAT WEIGHT: 32.5 tons. |
CREW: 6. |
|
LENGTH: 18.5 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 8.95 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 10.25 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
|
GROUND CLEARANCE: 17.1 in. |
FORDING DEPTH: 40 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 147 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 13.6 lbs/sq. in. |
|
TYPE OF TRACK: Rubber block, rubber bushed, double pin shoe. | |
|
RADIUS OF ACTION: 120 mi. | |
|
FUEL CONSUMPTION: .7 mi/gal. | |
|
FUEL CAPACITY: 174 gal.(Diesel). | |
|
SPEED: 25 mph on roads; 4-20 mph cross-country. | |
|
ENGINE: GM, two 6-cylinder, Diesel, liquid-cooled, 420 BHP at 2,000 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
IGNITION: Injection. |
|
STEERING: Controlled differential. |
|
|
SUSPENSION: Three two-wheeled rubber tire bogies, each side of which are bolted to the hull, support the vehicle on vertical volute springs. Tracks driven by sprockets on the front are provided to maintain constant tension on tracks. There are three return rollers. | |
|
TURRET: Hydraulic or manual traverse. | |
|
ARMOR: Front - 2 in.; side - 1.5 in.; turret front - 2 in.; turret side - 2 in.; mantlet - 1 in. | |
|
ARMAMENT: One 75-mm M2, caliber length 31, right front. One 37-mm M6, caliber length 5 3, turret. Three .30 cal. machine guns. | |
|
MUZZLE VELOCITY: 75-mm - 1,850 ft/sec; |
AMMUNITION STOWAGE: 75-mm - 46 rds. |
|
PROJ. WEIGHT: 75-mm - 14.4 lb.; | |
|
REMARKS: M3 chassis with riveted hull. When this tank was used by the British it was called a General Lee. The gun, with counterbalance on muzzle, had a stabilizer (Westinghouse). | |
[183]
|
U. S. MEDIUM TANK M4A1 WITH T34E1 ROCKET LAUNCHER: (See figure 92.) | |
|
TANK, MEDIUM, M4A1, (75-MM GUN), WITH ROCKET LAUNCHER. | |
|
DATE OF INTRODUCTION: Tank-1942; rocket launcher - 1944. | |
|
MANUFACTURER: American Locomotive Co., Baldwin Locomotive Works, Detroit Tank Arsenal, Federal Machine and Welder Co., Ford Motor Co., Grand Blanc Tank Arsenal, Lima Locomotive Works, Montreal Locomotive Works, Pacific Car & Foundry Co., Pressed Steel Car Co., and Pullman Standard. Launcher added by Heintz Manufacturing Co. | |
|
COMBAT WEIGHT: 33.5 tons. |
CREW: 5. |
|
LENGTH: 20.3 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 8.7 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 10 ft. |
TRENCH CROSSING ABILITY: 7.5 ft. |
|
GROUND CLEARANCE: 17 in. |
FORDING DEPTH: 40 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 147 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16.5 in. |
GROUND PRESSURE: 13.5 lbs/sq. in. |
|
TYPE OF TRACK: Dry pin, double pin per shoe, rubber cleat. | |
|
RADIUS OF ACTION: 100 miles maximum. | |
|
FUEL CONSUMPTION: .6 mi/gal (average conditions). | |
|
FUEL CAPACITY: 175 gal. | |
|
SPEED: 22 mph on roads. | |
|
ENGINE: Wright, radial 9-cylinder, gasoline, 350 HP at 2, 400 rpm, air-cooled, compression ratio 5.7:1. | |
|
STARTER: Electric. |
IGNITION: Magneto. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
ELECTRICAL SYSTEM: 24-voit. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute spring, three bogies of two wheels each and three return rollers each side. | |
|
TURRET: Manual and hydraulic traverse. | |
|
ARMOR: Front - 2-1/2 in. at 46°; side - 1.5 in.; turret - 3.2 in.; mantlet - 1-3/4 in. | |
|
ARMAMENT: One 75-mm gun M3, caliber length
40. | |
|
MUZZLE VELOCITY (75-MM) (AP): 2,050 ft/sec. |
AMMUNITION STOWAGE: 75-mm - 89 rds. |
|
PROJ. WEIGHT (75-MM) (AP): 14.4 lb. | |
|
REMARKS: This design saw many versions, but primarily it was the tank with its 75-mm guns with which America was to win the war, having actually more than the enemy could destroy. It was not a remarkably fine tank. | |
[185]
|
U. S. MEDIUM TANK M4A4*: (See figure 93.) | |
|
TANK, MEDIUM, M4A4, (75-MM GUN) "GENERAL SHERMAN." | |
|
EMPLOYMENT: Armored division. | |
|
DATE OF INTRODUCTION: 1943. | |
|
MANUFACTURER: American Locomotive Co., Baldwin Locomotive Works, Detroit Tank Arsenal, Federal Machine & Welder Co., Ford Motor Co., Grand Blanc Tank Arsenal, Lima Locomotive Works, Montreal Locomotive Works, Pacific Car & Foundry Co., Pressed Steel Car Co., and Pullman Standard. | |
|
COMBAT WEIGHT: 36.25 tons. |
CREW: 5. |
|
LENGTH: 20.3 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 9.7 ft. |
NUMBER OF TRACK LINKS: 84. |
|
HEIGHT: 8.9 ft. |
TRENCH CROSSING ABILITY: 8 ft. |
|
GROUND CLEARANCE: 17 in. |
FORDING DEPTH: 40 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 160 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16.6 in. |
GROUND PRESSURE: 12.9 lbs/sq. in. |
|
TYPE OF TRACK: Dry pin, double pin per shoe, rubber cleat. | |
|
RADIUS OF ACTION: 100 mi. (average conditions); 120 mi. on roads. | |
|
FUEL CONSUMPTION: .6 mi/gal (average conditions). | |
|
FUEL CAPACITY: 150 gals. | |
|
SPEED: 25 mph max. | |
|
ENGINE: Chrysler-type 5-251, 5-engine installation, gasoline, six cylinders per engine, 430 HP at 2, 500 rpm, liquid-cooled, compression ratio 6.5:1. | |
|
STARTER: Electric. |
IGNITION: Magneto. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
ELECTRICAL SYSTEM: 24-volt. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Horizontal spring, three bogies of two wheels each and three return rollers each side. | |
|
TURRET: Hand and hydraulic traverse. | |
|
ARMOR: Front - 2 in. at 46°; side - 1.5 in.; turret - 3.2 in.; mantlet - 1 in. | |
|
ARMAMENT: One 75-mm gun M3, caliber length 40.Two .30 cal. M1919A4 machine guns (bow and coaxial). | |
|
MUZZLE VELOCITY (75-MM)(AP): 2,050 ft/sec. |
AMMUNITION STOWAGE: 75-mm - 95 rds. |
|
PROJ. WEIGHT (75-MM) (AP): 14.4 lb. | |
|
REMARKS: Another M4 version, with Chrysler engine. | |
|
*British versions were M4A1, Sherman II; M4A2, Sherman III; M4A4, Sherman V. M4A2 in Russia was M4C. | |
[187]
|
U. S. MEDIUM M4A4 TANK WITH SPIGOT MOTOR ATTACHMENT: (See figure 94.) | |
|
TANK, MEDIUM, M4A4 "GENERAL SHERMAN." | |
|
EMPLOYMENT: Mine destroyer and demolition vehicle (experimental). | |
|
DATE OF INTRODUCTION: 1943. | |
|
MANUFACTURER: Chrysler. | |
|
COMBAT WEIGHT: 34.2 tons. |
CREW: 5. |
|
LENGTH: 19.4 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 8.7 ft. |
NUMBER OF TRACK LINKS: 84. |
|
HEIGHT: 8.9 ft. |
TRENCH CROSSING ABILITY: 8.ft. |
|
GROUND CLEARANCE: 17 in. |
FORDING DEPTH: 40 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 160 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 20.25 in. w/grousers. |
GROUND PRESSURE: 10.5 lbs/sq. in. |
|
TYPE OF TRACK: Dry pin, double pin per shoe, rubber cleat. | |
|
RADIUS OF ACTION: 100 miles (average conditions); 120 miles on roads. | |
|
FUEL CONSUMPTION: .6 mi/gal (average conditions). | |
|
FUEL CAPACITY: 150 gal. | |
|
SPEED: 25 mph on roads; 10-20 mph cross-country. | |
|
ENGINE: Chrysler-type 5-251, 5 engine installation, gasoline, six cylinders per engine, 430 BHP at 2,500 rpm, liquid-cooled, compression ratio 6.5:1. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute spring, three bogies of two wheels each and three return rollers each side. | |
|
TURRET: Hand and hydraulic traverse. | |
|
ARMOR: Front - 2 in. at 46°; side - 1.5 in.; turret front - 3.2 in.; turret side - 2 in.; mantlet - 1 in. | |
|
ARMAMENT: One 75-mm gun M3, caliber length 40.Two .30 cal. M1919A4 machine gun (bow and coaxial). One .50 cal. machine gun M2 (AA). | |
|
MUZZLE VELOCITY (75-MM): 2,050 ft/sec. |
AMMUNITION STOWAGE: 75-mm - 97 rds. |
|
PROJ. WEIGHT (75-MM)(AP): 14.4 lb. | |
|
REMARKS: This specimen modified with attachments for spigot mortar bombs. | |
[189]
|
U. S. MEDIUM TANK: (See figure 95.) | |
|
TANK, MEDIUM, T25E1. | |
|
EMPLOYMENT: Experimental. | |
|
DATE OF INTRODUCTION: 1943. | |
|
MANUFACTURER: Ford. | |
|
COMBAT WEIGHT: 38.3 tons. |
CREW: 5. |
|
LENGTH: 21.9 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 10.3 ft. |
CLIMBING ABILITY: 31° (60%) slope. |
|
HEIGHT: 9.1 ft. |
GROUND PRESSURE: 13.3 lbs/sq. in. |
|
GROUND CLEARANCE: 17.7 in. | |
|
TREAD CENTERS: 8.75 ft. | |
|
GROUND CONTACT: 152.25 in. | |
|
WIDTH OF TRACK: 19 in. | |
|
TYPE OF TRACK: Cast. | |
|
RADIUS OF ACTION: 92 mi. | |
|
FUEL CONSUMPTION: .5 mi/gal. | |
|
FUEL CAPACITY: 191 gal. | |
|
SPEED: 30 mph on roads; 18-20 mph cross-country. | |
|
ENGINE: Ford V8, liquid-cooled, gasoline, 500 BHP at 2,600 rpm. | |
|
STARTER: Electric. |
IGNITION: Magneto. |
|
TRANSMISSION: Combination torque converter and gear. | |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Individual torsion rod. | |
|
TURRET: Manual hydraulic traverse. | |
|
ARMOR: Front - 3 in.; side - 2 in.; turret front-3.5 to 2.5 in. | |
|
ARMAMENT: One 90-mm gun T-7, caliber length
53. | |
|
MUZZLE VELOCITY (90-MM): 2,800 ft/sec. |
AMMUNITION STOWAGE: 90-mm - 70 rds. |
|
PROJ. WEIGHT (90-MM) (APC): 24.1 lb. | |
|
REMARKS: Forerunner of the M2 6. One of the earliest designs employing a 90-mm gun and intended to be capable of combat with the heavier German tanks which were using 88-mm guns. | |
[191]
|
U. S. MEDIUM TANK: (See figure 96.) | |
|
TANK, MEDIUM, M4A3E8, (76-MM GUN) SHERMAN | |
|
EMPLOYMENT: Armored division. | |
|
DATE OF INTRODUCTION: 1944. | |
|
MANUFACTURER: Detroit Tank Arsenal (Chrysler). | |
|
COMBAT WEIGHT: 37.1 tons. |
CREW: 5. |
|
LENGTH: 19.3 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 9.8 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 9.9 ft. |
TRENCH CROSSING ABILITY: 7.5 ft. |
|
GROUND CLEARANCE: 17.1 in. |
FORDING DEPTH: 36 in. |
|
TREAD CENTERS: 7.4 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 147 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 23.9 in. |
GROUND PRESSURE: 10.6 lbs/sq. in. |
|
TYPE OF TRACK: Dry pin, double pin per shoe, steel shoes with rubber backing. | |
|
RADIUS OF ACTION: 100 mi. (average conditions); 155 mi. on roads. | |
|
FUEL CONSUMPTION: .6 mi/gal (average conditions). | |
|
FUEL CAPACITY: 168 gal. | |
|
SPEED: 26 mph max. | |
|
ENGINE: Ford, model GAA, gasoline, V-8, eight cylinders, four cycles, liquid-cooled, 500 HP at 2, 600 rpm. | |
|
STARTER: Electric. |
IGNITION: Magneto. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
ELECTRICAL SYSTEM: 24-volt. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Horizontal suspension, three bogies of two wheels each and five return rollers each side. | |
|
TURRET: Power traverse. | |
|
ARMOR: Front - 2 in. at 46°; side 1.5 in.; turret front - 3 in.; turret side - 2 in.; mantlet - 3.5 in. | |
|
ARMAMENT: One 76-mm gun M1A2, caliber length 53. One .50 cal. M2 machine gun (AA). One .30 cal. M1919A4 machine gun (bow). | |
|
MUZZLE VELOCITY (76-MM GUN) (AP): 2,600 ft/sec. | |
|
PROJ. WEIGHT (76-MM GUN) (AP): 15.4 lb. |
AMMUNITION STOWAGE: 76-mm - 71 rds. |
|
REMARKS: The first attempt at gun improvement in the M-4 series and was committed following "The Bulge." This tank with its 76-mm gun and improved tracks was considerably better than its former design and so was a much more formidable tank for our tank crews. | |
[193]
|
U. S. MEDIUM TANK: (See figure 97.) | |
|
TANK, MEDIUM, M26 (T26E3) "GENERAL PERSHING." | |
|
EMPLOYMENT: Armored division. | |
|
DATE OF INTRODUCTION: 1945. | |
|
MANUFACTURER: Detroit Tank Arsenal and Grand Blanc Tank Arsenal. | |
|
COMBAT WEIGHT: 46 tons. |
CREW: 5. |
|
LENGTH: 20 .8 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 11.4 ft. |
NUMBER OF TRACK LINKS: 78. |
|
HEIGHT: 9.1 ft. |
TRENCH CROSSING ABILITY: 7.9 ft. |
|
GROUND CLEARANCE: 17.7 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 9.2 ft. |
OBSTACLE ABILITY: 46 in. |
|
GROUND CONTACT: 148.4 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 24 in. |
GROUND PRESSURE: 12.9 lbs/sq. in |
|
TYPE OF TRACK: Cast steel, rubber backed. | |
|
RADIUS OF ACTION: 92 mi. on roads; 62 mi. cross-country. | |
|
FUEL CONSUMPTION: .5 mi/gal. | |
|
FUEL CAPACITY: 191 gal. | |
|
SPEED: 30 mph on roads, 5-18 mph cross-country. | |
|
ENGINE: Ford V8, liquid-cooled, gasoline, 500 BHP at 2, 600 rpm, compression ratio 7.5:1. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Torqmatic, three speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Torsion bar, six road wheels and one compensating wheel each side. Five return rollers. | |
|
TURRET: Power and hand traverse. | |
|
ARMOR: Front - 4.3 in.; side - 2 in.; turret front - 4.3 in. | |
|
ARMAMENT: One 90-mm gun M3, caliber length 5
3. | |
|
MUZZLE VELOCITY (90-MM): 2, 800 ft/sec. |
AMMUNITION STOWAGE: 90-mm - 70 rds. |
|
PROJ. WEIGHT (90-MM): 24.1 lb. | |
|
REMARKS: After standardization, the T26E3 became the M26. This was the first U. S. tank to mount the 90-mm tank gun M3. They were being issued to U. S. armored divisions during the last six weeks of the war. Originally called heavy tank M26. | |
[195]
[196]
|
U. S. MEDIUM TANK: (See figure 98.) | |
|
TANK, MEDIUM, T42. | |
|
EMPLOYMENT: Experimental. | |
|
COMBAT WEIGHT: 36 tons. |
CREW: 4. |
|
LENGTH: 19 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 11.8 ft. |
NUMBER OF TRACK LINKS: 76. |
|
HEIGHT: 10.5 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
|
GROUND CLEARANCE: 17 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 9.3 ft. |
OBSTACLE ABILITY: 30 in. |
|
GROUND CONTACT: 128 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 2 3 in. |
GROUND PRESSURE: 12.2 lbs/sq. in. |
|
TYPE OF TRACK: Double pin, rubber block. | |
|
RADIUS OF ACTION: 100 mi. | |
|
FUEL CONSUMPTION: .72 mi/gal. | |
|
FUEL CAPACITY: 139 gal. | |
|
SPEED: 32 mph max. | |
|
ENGINE: Continental, 6 cylinders, air-cooled, gasoline, 500 HP at 2,800 rpm. | |
|
TRANSMISSION: Allison cross-drive, two speeds forward, one reverse. |
IGNITION: Magneto. |
|
SUSPENSION: Torsion bar, five road wheels and three return rollers each side. | |
|
ARMOR: Front - 1 in.; side - .25 to 1.5 in. | |
|
ARMAMENT: One 90-mm gun T119, caliber length 53. | |
|
MUZZLE VELOCITY (90-MM): 3,100 ft/sec. | |
|
PROJ. WEIGHT (90-MM): 24.1 lb. |
AMMUNITION STOWAGE: 90-mm - 60 rds. |
|
REMARKS: This is the M3 gun modified to withstand standard increased muzzle velocity. | |
[197]
|
U. S. HEAVY TANK: (See figure 99.) | |
|
TANK, HEAVY, M6A2. | |
|
DATE OF INTRODUCTION: 1941. | |
|
MANUFACTURER Baldwin Locomotive Co. | |
|
COMBAT WEIGHT: 60 tons. |
CREW: 6. |
|
LENGTH: 23.75 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 10.25 ft. |
NUMBER OF TRACK LINKS: 100. |
|
HEIGHT: 9.9 ft. |
TRENCH CROSSING ABILITY: 11 ft. |
|
GROUND CLEARANCE: 20.5 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 7.8 ft. |
OBSTACLE ABILITY: 42 in. |
|
GROUND CONTACT: 188 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 25.75 in. |
GROUND PRESSURE: 12.4 lbs/sq. in. |
|
TYPE OF TRACK: Double, rubber block, rubber bushed, double pin shoe. | |
|
RADIUS OF ACTION: 146 mi. | |
|
FUEL CONSUMPTION: .42 mi/gal. | |
|
FUEL CAPACITY: 350 gal. | |
|
SPEED: 27 mph on roads. | |
|
ENGINE: Wright Whirlwind type G200, gasoline, nine cylinders, air-cooled, 740 BHP at 2150 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Electric, two speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Horizontal volute springs, four two-wheeled bogies and three return rollers each side. | |
|
TURRET: Power or manual traverse. | |
|
ARMOR: Front - 5 in.; side - 2 - 2.5 in.; turret front - 3.5 in.; turret side - 3.5 in. | |
|
ARMAMENT: One 3-inch
gun T12, caliber length 50. | |
|
MUZZLE VELOCITY: 3-inch - 2,600 ft/sec; 37-mm - 2,600 ft/sec. |
AMMUNITION STOWAGE: 3-in. - 75 rds. |
|
PROJ. WEIGHT: 3-in. - 15 lb; 37-mm - 1.91 lb. | |
[199]
|
U. S. TANK RECOVERY VEHICLE: (See figure 100.) | |
|
TANK, RECOVERY, M31. | |
|
EMPLOYMENT: Ordnance battalion, armored division. | |
|
DATE OF INTRODUCTION: 1942. | |
|
MANUFACTURER: Baldwin Locomotive Works. | |
|
COMBAT WEIGHT: 32.8 tons. |
CREW: 6. |
|
LENGTH: 18.5 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 8.95 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 10.25 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
|
GROUND CLEARANCE: 15 in. |
FORDING DEPTH: 42 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 147 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 13.9 lbs/sq. in. |
|
TYPE OF TRACK: Rubber block, rubber bushed double pin shoe. | |
|
RADIUS OF ACTION: 120 miles (gasoline); 140 miles (Diesel). | |
|
FUEL CONSUMPTION: .6 mi/gal (gasoline); .8 mi/gal (Diesel). | |
|
FUEL CAPACITY: 185 gal. (gasoline), 175 gal. (Diesel). | |
|
SPEED: 25 mph on roads; 4-20 mph cross-country. | |
|
ENGINE: Wright Whirlwind, gasoline, nine cylinders, air-cooled or GMC, gasoline, twin 6 cylinder, liquid-cooled, 420 HP at 2,000 rpm or Guiberson, Diesel, 9 cylinders, air-cooled, 350 BHP at 2,400 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Synchromesh in 2nd, 3rd, and 5th, and constant mesh in 1st and reverse. Five speeds forward, one reverse. |
IGNITION: Distributor (gasoline); injection (Diesel). |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Three two-wheeled rubber tire bogies each side support the vehicle on vertical volute springs. Track driven by sprockets on front provided to maintain constant tension on tracks. Three return rollers are on each side. | |
|
TURRET: Hydraulic or manually operated. | |
|
ARMOR: Front - 2 in.; side - 1.5 in.; turret front - 2 in.; turret side - 2 in. | |
|
ARMAMENT: Primary - none. | |
|
REMARKS: This vehicle has a dummy 75-mm gun to appear as the M3A5. | |
[201]
|
U. S. MORTAR CARRIER: (See figure 101.) | |
|
CARRIER, 4.2-INCH MORTAR, TRACKED, T64. | |
|
EMPLOYMENT: Experimental. | |
|
MANUFACTURER: International Harvester Co. | |
|
COMBAT WEIGHT: 21.48 tons. |
CREW: 6. |
|
LENGTH: 16.8 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 9.1 ft. |
NUMBER OF TRACK LINKS: 67. |
|
HEIGHT: 8.6 ft. |
TRENCH CROSSING ABILITY: 6.5 ft. |
|
GROUND CLEARANCE: 18 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 7.25 ft. |
OBSTACLE ABILITY: 18 in. |
|
GROUND CONTACT: 115.5 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 2 3 in. |
GROUND PRESSURE: 8.1 lbs/sq. in. |
|
TYPE OF TRACK: Single pin, rubber bushed steel shoe. | |
|
RADIUS OF ACTION: 115 mi. on roads. | |
|
FUEL CONSUMPTION: .8 mi/gal. | |
|
FUEL CAPACITY: 150 gal. | |
|
SPEED: 44.5 mph max. | |
|
ENGINE: Continental, AO-895-4, six cylinders, gasoline, air-cooled, 375 HP at 2, 800 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Cross-drive, two speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Cross-drive transmission. | |
|
SUSPENSION: Torsion bar, five road wheels, three return rollers each side. | |
|
TURRET: None. | |
|
ARMOR: Front - .4 in.; side - .4 in. | |
|
ARMAMENT: One 4.2-in.
mortar M30. | |
|
MAX. RANGE (4.2-IN.): 5,931yd. |
AMMUNITION STOWAGE: 4.2-in. - 76 rds. |
|
PROJ. WEIGHT (4.2-IN.): 26.2 lb. | |
|
REMARKS: None. |
|
[[203]]
|
U. S. GUN MOTOR CARRIAGE: (See figure 102.) | |
|
CARRIAGE, MOTOR, 75-MM, M1920. | |
|
DATE OF INTRODUCTION: 1921. | |
|
MANUFACTURER: Holt. | |
|
COMBAT WEIGHT: 6.5 tons. |
CREW: 2. |
|
LENGTH: 12.1 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 6.4 ft. |
NUMBER OF TRACK LINKS: 46. |
|
HEIGHT: 7.5 ft. |
GROUND PRESSURE: 7.5 lbs/sq. in. |
|
GROUND CLEARANCE: 7 in. | |
|
TREAD CENTERS: 5.25 ft. | |
|
GROUND CONTACT: 79 in. | |
|
WIDTH OF TRACK: 11 in. | |
|
TYPE OF TRACK: Steel, dry pin. | |
|
SPEED: 14 mph on roads. | |
|
ENGINE: Holt, 75 BHP. | |
|
STARTER: Electric. |
IGNITION: Injection. |
|
TRANSMISSION: Planetary, three speeds forward, one reverse. | |
|
STEERING: Clutch brake. | |
|
SUSPENSION: Leaf and coil springs. | |
|
TURRET: None. | |
|
ARMOR: None. | |
|
ARMAMENT: One 75-mm gun M1920. | |
|
ELEVATION: 70°. | |
|
TRAVERSE: 24°. |
AMMUNITION STOWAGE: None. |
[205]
|
U. S. GUN MOTOR CARRIAGE: (See figure 103.) | |
|
GUN MOTOR CARRIAGE MARK X WITH 4.7-INCH GUN MODEL, 1920 (EXPERIMENTAL). | |
|
EMPLOYMENT: Self-propelled artillery. | |
|
DATE OF INTRODUCTION: 1922. | |
|
MANUFACTURER: Chassis - Rock Island Arsenal; gun - Watervliet Arsenal. | |
|
UNLOADED WEIGHT: 12.5 tons. |
PITCH OF TRACK: 7 in. |
|
LENGTH: 19.6 ft (incl. gun). |
NUMBER OF TRACK LINKS: 46. |
|
WIDTH: 7.5 ft. |
GROUND PRESSURE: 12.7 lbs/sq. in. |
|
HEIGHT: 5.2 ft. | |
|
GROUND CLEARANCE: 15 in. | |
|
TREAD CENTERS: 6.44 ft. | |
|
GROUND CONTACT: 76 in. | |
|
WIDTH OF TRACK: 13 in. | |
|
TYPE OF TRACK: Dry pin. | |
|
SPEED: 8.6 mph cross-country. | |
|
ENGINE: Sterling, gasoline, four cylinders, liquid-cooled, 110 HP. | |
|
TRANSMISSION: Three speeds forward, one reverse, sliding gear. | |
|
STEERING: Clutch brake. | |
|
SUSPENSION: Rigid. | |
|
ARMOR: None. | |
|
ARMAMENT: 4.7-in. gun model 1290 (experimental), caliber length 50. | |
|
ELEVATION: +45°. |
MUZZLE VELOCITY: Est. 2,500 ft/sec. |
|
TRAVERSE: 30°. |
MAX. RANGE: Est 20,000 yd. |
|
PROJ. WEIGHT: Approximately 45 lb. |
AMMUNITION STOWAGE: None. |
|
REMARKS: One of the earliest self-propelled guns designed. Gun was not adopted however. It was one of a series built after World War I. | |
[207]
|
U. S. GUN MOTOR CARRIAGE: (See figure 104.) | |
|
CARRIAGE, MOTOR, 76-MM GUN, M18 (T 70) "HELLCAT." | |
|
EMPLOYMENT: Tank destroyer battalions. | |
|
DATE OF INTRODUCTION: 1943. | |
|
MANUFACTURER: Buick Motor Division (GMC). | |
|
COMBAT WEIGHT: 19.5 tons. |
CREW: 5. |
|
LENGTH: 17.5 ft. |
PITCH OF TRACK: 5.25 in. |
|
WIDTH: 9.1 ft. |
NUMBER OF TRACK LINKS: 83. |
|
HEIGHT: 8.4 ft. (to top of AA gun). |
TRENCH CROSSING ABILITY: 6.2 ft. |
|
GROUND CLEARANCE: 14.25 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 7.9 ft. |
OBSTACLE ABILITY: 36 in. |
|
GROUND CONTACT: 116.5 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 14.4 in. |
GROUND PRESSURE: 12.5 lbs/sq. in. |
|
TYPE OF TRACK: T69, dry pin, steel shoe, 12 in. wide. | |
|
RADIUS OF ACTION: 105 miles (average conditions); 150 miles maximum. | |
|
FUEL CONSUMPTION: .6 mi/gal (average conditions). | |
|
FUEL CAPACITY: 169 gal. | |
|
SPEED: 45 mph max. | |
|
ENGINE: Continental model R975C4, gasoline, radial, four cycles, nine cylinders, 400 HP at 2,400 rpm, air-cooled | |
|
STARTER: Electric. |
IGNITION: Magneto. |
|
TRANSMISSION: Torqmatic, three speeds forward, one reverse. |
ELECTRICAL SYSTEM: 24-volt. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Torsion bar, five road wheels and four return rollers each side. | |
|
TURRET: Open top, hydraulic traverse. | |
|
ARMOR: Front - .5 in.; side - .5 in.; turret front - .75 in.; turret side - .5 in.; mantlet .5 in. | |
|
ARMAMENT: One 76-mm gun
M1A1, caliber length 53. | |
|
ELEVATION: -10° to +20°. |
MUZZLE VELOCITY (AP): 2,600 ft/sec. |
|
TRAVERSE: 360°. |
MAX. RANGE (HE): 14,000 yd. (approx). |
|
PROJ. WEIGHT (AP): 15.4 lb. |
AMMUNITION STOWAGE: Gun
- 45 rds. |
|
REMARKS: Essentially the newer light tank chassis, with special turret to accommodate new 76-mm gun and used as a tank destroyer. An excellent combat vehicle. | |
[209]
|
U. S. GUN MOTOR CARRIAGE: (See figure 105.) | |
|
CARRIAGE, 90-MM, M36. | |
|
EMPLOYMENT: Tank destroyer battalions. | |
|
DATE OF INTRODUCTION: 1943. | |
|
MANUFACTURER: American Locomotive, Grand Blanc Tank Arsenal, Massey Harris, and Montreal Locomotive. | |
|
COMBAT WEIGHT: 30.5 tons. |
CREW: 5. |
|
LENGTH: 19.6 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 10 ft. |
NUMBER OF TRACK LINKS: 77. |
|
HEIGHT: 10.4 ft. |
TRENCH CROSSING ABILITY: 7.5 ft. |
|
GROUND CLEARANCE: 17.4 in. |
FORDING DEPTH: 36 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 18 in. |
|
GROUND CONTACT: 147 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16.6 in. |
GROUND PRESSURE: 12.95 lbs/sq. in. |
|
TYPE OF TRACK: Rubber block, rubber bushed, double pin shoes. | |
|
RADIUS OF ACTION: 155 miles on roads; 110 miles cross-country. | |
|
FUEL CONSUMPTION: .8 mi/gal on roads; .6 mi/gal cross-country. | |
|
FUEL CAPACITY: 192 gal. | |
|
SPEED: 26 mph on roads; 5-20 mph cross-country. | |
|
ENGINE: Ford V8, gasoline, eight cylinders, liquid-cooled, 450 BHP at 2,600 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute spring, three bogies of two wheels each are on each side. Tracks supported by return rollers. | |
|
TURRET: Open top, power and hand traverse. | |
|
ARMOR: Front - 1.5 in.; side - .75 in.; turret front - .75 in.; turret side - .75 in. | |
|
ARMAMENT: One 90-mm gun
M3, caliber length 53. | |
|
ELEVATION: -10° to +30°. |
MUZZLE VELOCITY (90-MM) (AP): 2,800 ft/sec. |
|
TRAVERSE: 360° |
AMMUNITION STOWAGE:
90-mm - 45 rds. |
|
PROJ. WEIGHT (90-MM): 24.1 lb. | |
|
REMARKS: This was the only armored force vehicle to carry a 90-mm gun into action for the Allies in World War II. M26 Med. was used in the last few weeks in the ETO. | |
[211]
|
U. S. GUN MOTOR CARRIAGE: (See figure 106.) | |
|
CARRIAGE, MOTOR, 105-MM HOWITZER, M7. | |
|
EMPLOYMENT: Artillery battalions, armored division and infantry regiment howitzer companies. | |
|
DATE OF INTRODUCTION: 1942. | |
|
MANUFACTURER: American Locomotive Co., Federal Machine & Welder Co., Pressed Steel Car Co. | |
|
COMBAT WEIGHT: 28.25 tons. |
CREW: 7. |
|
LENGTH: 20.4 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 9.5 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 9.7 ft. |
TRENCH CROSSING ABILITY: 7.5 ft. |
|
GROUND CLEARANCE: 17.1 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 6.9 ft. |
OBSTACLE ABILITY: 24 in. |
|
GROUND CONTACT: 147 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16.6 in. |
GROUND PRESSURE: 10.4 lbs/sq. in. |
|
TYPE OF TRACK: Dry pin, double pin per shoe, rubber bushed cleat. | |
|
RADIUS OF ACTION: 85 miles (average conditions). | |
|
FUEL CONSUMPTION: .5 mi/gal (average conditions). | |
|
FUEL CAPACITY: 179 gal. | |
|
SPEED: 24 mph max. | |
|
ENGINE: Continental model R-975-C-1, gasoline, radial, four cycles, nine cylinders. 350 HP at 2,400 rpm, air-cooled. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-voit. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. |
|
|
SUSPENSION: Vertical volute springs, three bogies of two wheels each and three return rollers each side. | |
|
ARMOR: Front - 1 in.; side - .5 in. | |
|
ARMAMENT: One 105-mm
howitzer M2A1, caliber length 24. | |
|
ELEVATION: -5° to +33°. |
MUZZLE VELOCITY (MAX): 1,550 ft/sec. |
|
TRAVERSE: 12-1/4° left; 25-1/2° right. |
MAX. RANGE (HE): 11,500 yd. |
|
PROJ. WEIGHT (HE): 33 lb. |
AMMUNITION STOWAGE:
Howitzer - 69 rds. |
|
REMARKS: Called by British troops "The Priest" because of its pulpit-like forward AA gun mounting. Essentially a Sherman chassis with platform permitting use of the U. S. 105-mm howitzer. Introduced at Battle of Alemein where 5th Royal Horse Arty supported British tanks against the Rommel tanks and dug-in 88-mm guns. | |
[213]
|
U. S. HOWITZER MOTOR CARRIAGE: (See figure 107.) | |
|
CARRIAGE, MOTOR, M37 (T76), 105-MM HOWITZER. | |
|
DATE OF INTRODUCTION: 1945. | |
|
MANUFACTURER: Cadillac. | |
|
COMBAT WEIGHT: 2 3 tons. |
CREW: 7. |
|
LENGTH: 18ft. |
PITCH OF TRACK: 5.5 in. |
|
WIDTH: 9.8 ft. |
NUMBER OF TRACK LINKS: 80. |
|
HEIGHT: 7.9 ft. |
TRENCH CROSSING ABILITY: 9 ft. |
|
GROUND CLEARANCE: 18.4 in. |
FORDING DEPTH: 42 in. |
|
TREAD CENTERS: 8 ft. |
OBSTACLE ABILITY: 36 in. |
|
GROUND CONTACT: 12 3 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 11.7 lbs/sq. in. |
|
TYPE OF TRACK: Steel block, with center guide and rubber bushings. | |
|
RADIUS OF ACTION: 100 mi. (average conditions). | |
|
FUEL CONSUMPTION: .9 mi/gal. | |
|
FUEL CAPACITY: 110 gal. | |
|
SPEED: 35 mph on roads; 5-25 mph cross-country. | |
|
ENGINE: Two Cadillac V8, liquid-cooled, gasoline, 110 HP at 3,400 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Hydramatic, two speeds forward, one reverse. |
IGNITION: Distributor. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Torsion bar suspension is used for the dual track wheels, and includes a compensating wheel at the rear on each side to keep track tension constant. Tracks are driven from the final drive at the front on each side. Five road wheels and four return rollers are on each side. | |
|
TURRET: None. | |
|
ARMOR: Front - .5 in.; side - .5 in. | |
|
ARMAMENT One 105-mm
howitzer M4, caliber length. | |
|
ELEVATION: -10° to +45°. |
MAX. RANGE: 12,200 yd. |
|
TRAVERSE: 22.5° L and 22.5° R. |
AMMUNITION STOWAGE: 105-mm - 126 rds. |
|
PROJ. WEIGHT (HE): 33 lb. | |
[215]
|
U. S. HOWITZER MOTOR CARRIAGE: (See figures 108 and 108A.) | |
|
CARRIAGE, MOTOR, 105-MM HOWITZER T98. | |
|
DATE OF INTRODUCTION: 1946. | |
|
COMBAT WEIGHT: 27.1 tons. |
CREW: 5. |
|
LENGTH: 18.9 ft. (overall). |
PITCH OF TRACK: 6.1 in. |
|
WIDTH: 10.5 ft. |
NUMBER OF TRACK LINKS: 74. |
|
HEIGHT: 11.1 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
|
GROUND CLEARANCE: 19.1 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 8.5 ft. |
OBSTACLE ABILITY: 30 in. |
|
GROUND CONTACT: 154 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 2 1.5 in. |
GROUND PRESSURE: 8.2 lbs/sq. in. |
|
TYPE OF TRACK: Rubber backed steel chevron track links with rubber grousers and pin connections. | |
|
RADIUS OF ACTION: 70 to 150 mi. | |
|
FUEL CONSUMPTION: .4 to .86 mi/gal. | |
|
FUEL CAPACITY: 174 gal. | |
|
SPEED: 25 mph on roads, 35 mph max. | |
|
ENGINE: Continental, 3 six-cylinder, opposed type, supercharged, air-cooled, gasoline, 500 HP at 2, 800 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Cross-drive. A combined transmission, differential and steering unit. |
IGNITION: Magnetos. |
|
STEERING: Cross-drive transmission. | |
|
SUSPENSION: Torsion bar and individually sprung road wheels, six double road wheels and four return rollers are on each side. | |
|
TURRET: Manual or power elevation and traverse 60° R or L. | |
|
ARMOR: Front - .5 in.; side - .5 in.; turret front - .5 in.; turret side - .5 in. | |
|
ARMAMENT: One 105-mm howitzer T96E1, caliber length. | |
|
TRAVERSE: 60° L or R. |
MAX. RANGE: 12, 150 yd. |
|
PROJ. WEIGHT: 36 to 44 lb. | |
|
REMARKS: A final version of the 105 howitzer as a gun motor carriage and actually a modernized version of a similar vehicle known as "The Priest" which was introduced to the German Africa Corps at El Alemein, October 1942. | |
[217]

Figure 108a. Howitzer, 105-mm, self-propelled, T98 (pilot No. 1).
|
Howitzer, 105m, Self-Propelled, T98 (Pilot No. 1) | |
|
AMMUNITION: 110 Rds. 105mm |
CREW: 5 Men |
|
CRUISING RANGE: 91 Miles (Gravel) | |
|
FIRE CONTROL: Panoramic Telescope T149E1 Direct Telescope T150E1 | |
|
ARMAMENT: Howitzer,
105mm, T96, in Mount T67 |
FUEL CAPACITY: 146 Gallons |
|
GROUND PRESSURE: 7.2 psi | |
|
GROUND CLEARANCE: 19-1/8 in. | |
|
DIMENSIONS: Height - 133-21/64 in. |
MAXIMUM GRADE: 60% |
|
MAXIMUM VERTICAL OBSTACLE: 30 in. | |
|
ENGINE AND POWER TRAIN: A0S895-1, 500 HP, Air cooled coupled direct to CD 500-3 "cross drive" transmission |
MAXIMUM TRENCH CROSSING: 6 ft. |
|
MAXIMUM SPEED: 45 mph | |
|
SUSPENSION: Individual Torsion Bar with trailing idler compensator |
TRACKS: T91 Center Guide with Detachable Rubber Pads. |
|
WEIGHT: 49,350 lbs. | |
[219]
|
U. S. HOWITZER MOTOR CARRIAGE: (See figure 109.) | |
|
CARRIAGE, MOTOR, T88 (105-MM HOWITZER). | |
|
EMPLOYMENT: Experimental. | |
|
MANUFACTURER: Buick Motor Division (GMC). | |
|
COMBAT WEIGHT: Approximately 19 tons. |
CREW: 5. |
|
LENGTH: 17.75 ft. |
PITCH OF TRACK: 5.25 in. |
|
WIDTH: 9 4 ft. |
NUMBER OF TRACK LINKS: 82. |
|
HEIGHT: 8.4 ft. |
TRENCH CROSSING ABILITY: 6.2 ft. |
|
GROUND CLEARANCE: 14.25 in. |
FORDING DEPTH: 48 in. |
|
TREAD CENTERS: 7.9 ft. |
OBSTACLE ABILITY: 36 in. |
|
GROUND CONTACT: 116.5 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 14.4 in. |
GROUND PRESSURE: Approximately 11.3 lbs/sq. in. |
|
TYPE OF TRACK: Steel. | |
|
RADIUS OF ACTION: 105 mi. |
|
|
FUEL CONSUMPTION: .6 mi/gal. |
|
|
FUEL CAPACITY: 160 gal. |
|
|
SPEED: 45 mph on roads; 10-30 mph crosscountry. | |
|
ENGINE: Continental, radial, air-cooled, gasoline, nine cylinders, 400 BHP at 2, 400 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Automatic, three speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Torsion bar, five road wheels and four return rollers each side. | |
|
TURRET: Open top, hand and power traverse. | |
|
ARMOR: Front - 1 in.; side - .5 in.; turret front - 1 in.; turret side - .5 in.; mantlet - 1 in. | |
|
ARMAMENT: One 105-mm howitzer T8. | |
|
TRAVERSE: 360°. |
AMMUNITION STOWAGE: 105-mm. |
|
REMARKS: A standard M18 with 105-mm howitzer instead of the 76-mm gun produced as an experimental model. | |
[220]
|
U. S. HOWITZER MOTOR CARRIAGE: (See figure 110.) | |
|
CARRIAGE, MOTOR, 155-MM, T64. | |
|
DATE OF INTRODUCTION: 1943. | |
|
MANUFACTURER: Cadillac. | |
|
COMBAT WEIGHT: 19.4 tons. |
CREW: 6. |
|
LENGTH: 19.6 ft. |
PITCH OF TRACK: 5.5 in. |
|
WIDTH: 9.1 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 7.4 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
|
GROUND CLEARANCE: 14.75 in. |
FORDING DEPTH: 40 in. |
|
TREAD CENTERS: 7.7 ft. |
OBSTACLE ABILITY: 18 in. |
|
GROUND CONTACT: 135.5 in. |
CLIMBING ABILITY: 22° (40%) slope. |
|
WIDTH OF TRACK: 11.75 in. |
GROUND PRESSURE: 12.2 lbs/sq. in. |
|
TYPE OF TRACK: Steel, rubber bushed, double pin shoe. | |
|
FUEL CAPACITY: 84 gal. | |
|
SPEED: 35 mph on roads; 5-20 mph cross-country. | |
|
ENGINE: Cadillac, V8, twin, liquid-cooled, gasoline, 110 BHP at 3,400 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Hydramatic, six speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute spring, three 2-wheeled bogies, and two return rollers each side. | |
|
TURRET: None. | |
|
ARMOR: Front - .6 in.; side - .5 in. | |
|
ARMAMENT: One 155-mm howitzer M1, caliber length 2 3. | |
|
ELEVATION: 0° to +40°. |
MAX. RANGE: 16, 100 yd. |
|
TRAVERSE: 36°. |
AMMUNITION STOWAGE: 18 rds. |
|
PROJ. WEIGHT: 95 lb. | |
[222]
|
U. S. HOWITZER MOTOR CARRIAGE: (See figure 111.) | |
|
CARRIAGE, MOTOR, 155 HOWITZER M41. | |
|
EMPLOYMENT: Mobile artillery. | |
|
MANUFACTURER: Cadillac. | |
|
COMBAT WEIGHT: 21.25 tons. |
CREW: 12. |
|
LENGTH: 19.2 ft. |
PITCH OF TRACK: 5.5 in. |
|
WIDTH: 9.3 ft. |
NUMBER OF TRACK LINKS: 80. |
|
HEIGHT: 8 ft. (overall). |
TRENCH CROSSING ABILITY: 9 ft. |
|
GROUND CLEARANCE: 17.75 in. |
FORDING DEPTH: 42 in. |
|
TREAD CENTERS: 8 ft. |
OBSTACLE ABILITY: 40 in. |
|
GROUND CONTACT: 123 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 10.8 lbs/sq. in. |
|
TYPE OF TRACK: Steel, with center guide and rubber bushings. | |
|
RADIUS OF ACTION: 96 mi. (average conditions). | |
|
FUEL CONSUMPTION: .9 mi/gal (average conditions). | |
|
FUEL CAPACITY: 110 gal. | |
|
SPEED: 30 mph on roads; 5-25 mph cross-country. | |
|
ENGINE: Two Cadillac V8, liquid-cooled, gasoline, 110 BHP at 3, 40D rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Hydramatic, clutch type, planetary gearing, four speeds forward, one reverse. |
IGNITION: Distributor. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Torsion bar and individually sprung road wheels. Top portion of the track is supported by four support rollers. Five road wheels each side. | |
|
TURRET: None. | |
|
ARMOR: Front - .5 in.; side - .5 in. | |
|
ARMAMENT: One 155-mm howitzer, M1. | |
|
ELEVATION: -5° to +45°. |
MAX. RANGE: 16, 350 yd. |
|
TRAVERSE: 17°L; 20°R. |
AMMUNITION STOWAGE: 155-mm - 22 rds. |
|
PROJ. WEIGHT: 95 lb. | |
[224]
|
U. S. GUN MOTOR CARRIAGE: (See figure 112.) | |
|
CARRIAGE, MOTOR, 155-MM GUN M12. | |
|
DATE OF INTRODUCTION: 1942. | |
|
MANUFACTURER: Pressed Steel Car Co. | |
|
COMBAT WEIGHT: 27.1 tons (unloaded). |
CREW: 5. |
|
LENGTH: 22.1 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 8 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 8.8 ft. |
TRENCH CROSSING ABILITY: 6 ft. |
|
GROUND CLEARANCE: 16 in. |
FORDING DEPTH: 36 in. |
|
TREAD CENTERS: 6.95 ft. |
OBSTACLE ABILITY: 18 in. |
|
GROUND CONTACT: 148 in. |
CLIMBING ABILITY: 22° (40%) slope. |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 11.5 lbs/sq. in. |
|
TYPE OF TRACK: Rubber block, double pin. | |
|
RADIUS OF ACTION: 120 mi. | |
|
FUEL CONSUMPTION: .6 mi/gal. | |
|
FUEL CAPACITY: 200 gal. | |
|
SPEED: 21 mph on roads; 5-21 mph cross-country. | |
|
ENGINE: Wright, nine cylinders, radial, gasoline, air-cooled, 400 BHP at 2,400 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Synchromesh, five speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vertical volute springs, three two-wheeled bogies and three return rollers are on each side. | |
|
TURRET: None. | |
|
ARMOR: Front - 1 in.; side - .4 in. | |
|
ARMAMENT: One 155-mm gun M1917A1. | |
|
MUZZLE VELOCITY: 2,380 ft/sec. |
MAX. RANGE: Approximately 18,000 yd. |
|
PROJ. WEIGHT: 95 lb. |
AMMUNITION STOWAGE: 6 rds. |
|
REMARKS: This was a quick modification of a normal tank chassis into a gun motor carriage, utilizing the obsolete 155-mm guns (GPF) of World War I. Used in Italy, France, and Germany during World War II. | |
[226]
|
U. S. GUN MOTOR CARRIAGE: (See figure 113.) | |
|
CARRIAGE, MOTOR, 155-MM GUN, M40. | |
|
MANUFACTURER: Pressed Steel Car Co. | |
|
COMBAT WEIGHT: 40.5 tons. |
CREW: 8. |
|
LENGTH: 20.6 ft. (29.7 ft. overall). |
PITCH OF TRACK: 6 in. |
|
WIDTH: 10.3 ft. |
NUMBER OF TRACK LINKS: 79. |
|
HEIGHT: 10.8 ft. |
TRENCH CROSSING ABILITY: 7.7 ft. |
|
GROUND CLEARANCE: 19.25 in. |
FORDING DEPTH: 36 in. |
|
TREAD CENTERS: 8. 4 ft. |
OBSTACLE ABILITY: 34 in. |
|
GROUND CONTACT: 164 in. |
CLIMBING ABILITY: 31° (60%) slope. |
|
WIDTH OF TRACK: 2 3 in. |
GROUND PRESSURE: 10.7 lbs/sq. in. |
|
TYPE OF TRACK: Rubber block, double pin shoe. | |
|
RADIUS OF ACTION: 107 mi. | |
|
FUEL CONSUMPTION: .5 mi/gal. | |
|
FUEL CAPACITY: 215 gal. | |
|
SPEED: 24 mph on roads; 5-20 mph cross-country. | |
|
ENGINE: Continental, nine cylinders, radial, air-cooled, gasoline, 400 HP at 2,400 rpm, compression ratio 5.7:1. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Automatic, five speeds forward, one reverse. |
IGNITION: Magneto. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Horizontal volute spring. Three bogies of two wheels each and two return rollers on each side. | |
|
TURRET: None. | |
|
ARMOR: Front - .5 in.; side - .5 in. | |
|
ARMAMENT: One 155-mm gun M2, caliber length 45. | |
|
ELEVATION: -5° to +45° |
MAX. RANGE: 25,715 yd. |
|
TRAVERSE: 18° R or L. |
AMMUNITION STOWAGE: 155-mm - 20 rds. |
|
PROJ. WEIGHT: 95 lb. | |
|
REMARKS: This was the U. S. 155-mm "Long Tom" mounted on the tank chassis. It saw service in ETO in great numbers. | |
[228]
|
U. S. GUN MOTOR CARRIAGE: (See figure 114.) | |
|
CARRIAGE, MOTOR, 8-INCH GUN, T93. | |
|
EMPLOYMENT: Experimental. | |
|
LENGTH: 28 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 11.8 ft. |
NUMBER OF TRACK LINKS: 94. |
|
HEIGHT: 10.5 ft. | |
|
GROUND CLEARANCE: 20 in. | |
|
TREAD CENTERS: 9.2 ft. | |
|
GROUND CONTACT: 181 in. | |
|
WIDTH OF TRACK: 2 3 in. | |
|
TYPE OF TRACK: Double pin, rubber block. | |
|
SUSPENSION: Torsion bar, seven road wheels, six return rollers each side. | |
|
TURRET: None. | |
|
ARMOR: Front - 1 in.; side - .5 to 1 in. |
SUPERSTRUCTURE: .5 in. |
|
ARMAMENT: One 8-in. gun M1. | |
|
PROJ. WEIGHT: 230 lb. |
MAX. RANGE: 35,635 yd. |
[230]
|
U. S. HOWITZER MOTOR CARRIAGE: (See figure 115.) | |
|
CARRIAGE, MOTOR, 240-MM, T92. | |
|
EMPLOYMENT: Experimental. | |
|
COMBAT WEIGHT: 63.75 tons. |
CREW: 8. |
|
LENGTH: 28 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 11.1 ft. |
NUMBER OF TRACK LINKS: 94. |
|
HEIGHT: 10.5 ft. |
CLIMBING ABILITY: 31° (60%) slope. |
|
GROUND CLEARANCE: 20 in. |
GROUND PRESSURE: 15.5 lbs/sq. in. |
|
TREAD CENTERS: 9.2 ft. | |
|
GROUND CONTACT: 178 in. | |
|
WIDTH OF TRACK: 2 3 in. | |
|
TYPE OF TRACK: Double pin, rubber block. | |
|
RADIUS OF ACTION: 50 mi. | |
|
SPEED: 20 mph max. | |
|
ENGINE: Ford, GAF-C, V8, gasoline, liquid-cooled, 500 HP at 2, 600 rpm. | |
|
STARTER: Electric. |
IGNITION: Magneto. |
|
TRANSMISSION: Torqmatic, torque converter, three speeds forward, one reverse. | |
|
STEERING: Controlled differential, M26 components. | |
|
SUSPENSION: Torsion bar, seven road wheels and six return rollers each side. | |
|
TURRET: None. | |
|
ARMOR: Front - 1 in.; side - .5 to 1 in.; superstructure - .5 in. | |
|
ARMAMENT: One 240-mm gun M1. | |
|
ELEVATION: 0° to +65°. |
MAX. RANGE: 25,225 yd. |
|
TRAVERSE: 12° L and R. |
AMMUNITION STOWAGE: None. |
|
PROJ. WEIGHT: 356 lb. | |
[232]
Figure 115. Carriage, motor, 240-mm, T92.
|
240 MM HOWITZER MOTOR CARRIAGE T92 | |
|
GENERAL |
ENGINE |
|
Ford GAF-C, V-8 | |
|
WEIGHT: (combat loaded) 127,500# CREW: 8 men |
FUEL: 80 octane gasoline |
|
WEIGHT: (less crew, stowage, & fuel) 123,000# |
NET HORSEPOWER: 500 at 2600 rpm |
|
HORSEPOWER to WEIGHT RATIO: 8 per ton |
COOLING SYSTEM: liquid |
|
UNIT GROUND PRESSURE: 12 psi |
OIL CAPACITY: 32 quarts |
|
ARMOR |
POWER TRAIN |
|
CLUTCH: Torque converter | |
|
Hull Above Pender Below Pender |
TRANSMISSION: Torqmatic |
|
FRONT 1" |
NO. of SPEEDS: 3 ranges forward, 1 reverse |
|
SIDES 1/2" 1" |
STEERING MECHANISM: controlled differential |
|
VISION & SIGHTING EQUIPMENT |
|
|
PERISCOPES: None |
ELECTRICAL SYSTEM |
|
TELESCOPE; Panoramic M12 & Elbow M16AE1 QUANTITY: 1 ea. |
MAIN GENERATOR: 3600 watts |
|
AUXILIARY GENERATOR: Homelite, 1500 watts | |
|
ARMAMENT |
|
|
COMMUNICATION | |
|
Traverse - 12° left and right; Elevation - 0° to 65°; Location - rear |
NO. Of INTERPHONE OUTLETS: 4 |
|
SECONDARY: cal. .30 carbines |
PERFORMANCE |
|
MAX. TRACTIVE EFFORT: 105,000# | |
|
ammunition |
MAY SPEED; 20 mph |
|
CRUISING RANGE: 50 miles | |
|
900 rounds cal. .30 | |
|
GRADEABILITY: 60% | |
|
running GEAR | |
|
SUSPENSION: Torsion bar - M26 components | |
[233]
|
U. S. SP 155-MM T98, SP 105-MM T98E1: | |
|
SELF-PROPELLED 155-MM HOWITZER T98. | |
|
SELF-PROPELLED 105-MM HOWITZER T98E1. | |
|
COMBAT WEIGHT: 27.05 tons. |
CREW: 5. |
|
LENGTH: (overall) 18.88 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 10.54 ft. |
NUMBER OF LINKS: 73. |
|
HEIGHT: 11.10 ft. |
TRENCH CROSSING ABILITY: 72 in. |
|
GROUND CLEARANCE: 19 1/8 in. |
FORDING ABILITY: 48 in. |
|
TREAD CENTERS: 10 3 in. |
OBSTACLE ABILITY: 30 in. |
|
GROUND CONTACT: 148 5/8 in. |
CLIMBING ABILITY: 31° (60%). |
|
WIDTH OF TRACK: 21 1/2 in. |
GROUND PRESSURE: 8.45 lbs/sq. in. |
|
TYPE OF TRACK: T98E3 double steel chevron on the face, rubber-back rubber-bushed and pin-connected. | |
|
RADIUS OF ACTION: 109 mi. (gravel). | |
|
FUEL CONSUMPTION: .9 mi/gal. | |
|
FUEL CAPACITY: Right tank 81 gal., left 9 3 gal., total 174 gal. | |
|
SPEED: 25 mph. | |
|
ENGINE: Continental model AOS-895-3, six cylinders, horizontally opposed, super-charged, air-cooled, overhead valves, compression ratio 5.5:1, horsepower 500 at 2,800 rpm. | |
|
STARTER: Electric. |
ELECTRIC SYSTEM: 24-volt. |
|
IGNITION: Magneto. | |
|
TRANSMISSION: Allison CD-500-3, cross-drive, three ranges (high, low, and reverse). | |
|
STEERING: Cross-drive transmission. | |
|
SUSPENSION: Vehicle is supported by five road wheels suspended on torsion bars with four return rollers on each side. A compensating idler wheel is also used on each side. | |
|
TURRET: Power and manual, 60° traverse, welded steel plate. | |
|
ARMOR: Front - 1/2 in. at 50°; side - 1/2 in at 0°; turret front - 1/2 in. at 45°; turret side - 1/2 in. at 0°. | |
|
ARMAMENT: 155-mm,
.30 cal. MG (commander's hatch) T98. | |
|
PROJ. WEIGHT: 36.39 lb. to 46.43 lb. (type of shell). |
AMMUNITION STORAGE:
102 rds. - 105-mm. |
|
REMARKS: The difference between the T98 and T98E1 is the armament. The T98 has 155-mm howitzer and T98E1 has a 105-mm howitzer. | |
[234]
|
U. S. MOTOR CARRIAGE: | |
|
CARRIAGE, MOTOR, TWIN 40-MM GUN, M19. | |
|
MANUFACTURER: Cadillac Motor Car Division (GMC). | |
|
COMBAT WEIGHT: 20 tons (fully loaded). |
CREW: 6. |
|
LENGTH: 17.08 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 9.33 ft. |
NUMBER OF LINKS: 78. |
|
HEIGHT: 9.92 ft. |
TRENCH CROSSING ABILITY: 8 ft. |
|
GROUND CLEARANCE: 18 3/8 in. |
FORDING ABILITY: 3.5 ft. |
|
TREAD CENTERS: 8 ft. |
OBSTACLE ABILITY: 3 ft. |
|
GROUND CONTACT: 12.5 ft. |
CLIMBING ABILITY: 31° (60%). |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 9.4 lbs/sq. in. |
|
TYPE OF TRACK: Steel links, T72, single pin. | |
|
RADIUS OF ACTION: 97 mi. | |
|
FUEL CONSUMPTION: .87 mi/gal. | |
|
FUEL CAPACITY: 110 gal. | |
|
SPEED: 35 mph. | |
|
ENGINE: Two Cadillac, Model 44T24, V8, liquid-cooled, 110 BHP at 3,400 rpm, 7.06:1 compression ratio. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Hydramatic, three ranges (high, low, and reverse). |
IGNITION: Distributor. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vehicle is supported by five road wheels and torsion bars, with four return rollers on each side. Track is driven from the front by means of a final drive unit. | |
|
TURRET: None. | |
|
ARMOR: Front - 1/2 in., side - 1/2 in. | |
|
ARMAMENT: 1 gun, twin 40-mm, (turret). | |
|
TRAVERSE: 360°. |
AMMUNITION STORAGE: 352 rds. - 40-mm. |
[235]
|
U. S. TWIN 40-MM: | |
|
CARRIAGE, MOTOR, TWIN 40-MM GUN, M19A1. | |
|
MANUFACTURER: Cadillac Motor Car Division (GMC). | |
|
COMBAT WEIGHT: 20.58 tons. |
CREW: 6. |
|
LENGTH: 18.17 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 9.58 ft. |
NUMBER OF LINKS: 78. |
|
HEIGHT: 9.75 ft. |
TRENCH CROSSING ABILITY: 7.3 ft. |
|
GROUND CLEARANCE: 16.5 in. |
FORDING ABILITY: 3.5 ft. |
|
TREAD CENTERS: 8 ft. |
OBSTACLE ABILITY: 2.7 ft. |
|
GROUND CONTACT: 12.5 ft. |
CLIMBING ABILITY: 31° (60%). |
|
WIDTH OF TRACK: 16 in. |
GROUND PRESSURE: 10.1 lbs/sq. in. |
|
TYPE OF TRACK: Steel links, T72, single pin. (See remarks.) | |
|
RADIUS OF ACTION: 85 mi. | |
|
FUEL CONSUMPTION: .77 mi/gal. | |
|
FUEL CAPACITY: 110 gal. | |
|
SPEED: 30 mph. | |
|
ENGINE: Two Cadillac, Model 44T24, V8 cylinders, liquid-cooled, 7.06:1 compression ratio, 110 BHP at 3,400 rpm. | |
|
STARTER: Electric. |
ELECTRIC SYSTEM: 24-volt. |
|
TRANSMISSION: Hydramatic, three ranges (high, low, and reverse). |
IGNITION: Distributor. |
|
STEERING: Controlled differential. | |
|
SUSPENSION: Vehicle is supported by five road wheels and torsion bars, with four return rollers on each side. Track is driven from the front by a final drive unit. | |
|
TURRET: None. | |
|
ARMOR: Front - 1/2 in.; side - 1/2 in. | |
|
ARMAMENT: Gun, dual, automatic, 40-mm, M2 (turret). | |
|
TRAVERSE: 360°. |
AMMUNITION STORAGE: 350 rds. - 40-mm. |
|
REMARKS: Rubber tracked T85E1 is also applicable w/changed sprockets. | |
[236]
|
U. S. MEDIUM TANK; (See figure 116) | |
|
TANK, MEDIUM, M46 AND M46A1. | |
|
COMBAT WEIGHT: 48.5 tons. |
CREW: 5. |
|
LENGTH: 27.80 ft. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 11.52 ft. |
NUMBER OF LINKS: 78. |
|
HEIGHT: 9.25 ft. |
TRENCH CROSSING ABILITY: 8.5 ft. |
|
GROUND CLEARANCE: 19 1/4 in. |
FORDING ABILITY: 4 ft. |
|
TREAD CENTERS: 110 in. |
OBSTACLE ABILITY: 3 ft. |
|
GROUND CONTACT: 160 in. |
CLIMBING ABILITY: 31° (60%). |
|
WIDTH OF TRACK: 23 in. |
GROUND PRESSURE: 19 1/4 lbs/sq. in. |
|
TYPE OF TRACK: Rubber backed steel, double pin. | |
|
RADIUS OF ACTION: 70 mi. |
|
|
FUEL CONSUMPTION: .3 mi/gal. |
|
|
FUEL CAPACITY: 233 gal. |
|
|
SPEED: 30 mph. |
|
|
ENGINE: Continental, Model AV-1790-5A (M6), Model AV-1750-5B, air-cooled, gasoline 810 HP, V12 cylinders, compression ratio 6.5:1. | |
|
STARTER: Electric. |
ELECTRIC SYSTEM: 24-volt. |
|
TRANSMISSION: Cross-drive, three speed (high, low, and reverse). |
IGNITION: Magneto. |
|
STEERING: Multiple-disk steering brakes. | |
|
SUSPENSION: Torsion bar, six roadwheels with an idle wheel and five return rollers support vehicle on each side. | |
|
TURRET: Manual and power. | |
|
ARMOR: Front - 4 in. at 46°; side - 3 in. and 2 in. at 0°; turret front - 4 in.; turret side - 3 in. at 0°. | |
|
ARMAMENT: 90-mm M3A1 turret mounted, .50 cal. M2 MG (flexible) pedestal mount on top turret. Two .30 cal. M1919A4 (flexible), one ball mounted right front hull and one mounted coaxially with main armament. | |
|
AMMUNITION STORAGE:
70 rds. - 90-mm. | |
|
REMARKS: The M46 and M46A1 are the same vehicles with the exception of engine models, M46-AV-1790-5A and M6A1-AV- 1790-5B. | |
[237]
Figure 116. Tank, M46, medium. 238
|
Medium Tank, M46 | |||
|
MUNITIONS 70 Rounds 90mm |
ENGINES Continental
AV1790-5A. | ||
|
550 Rounds cal. .50 | |||
|
5500 Rounds cal. .30 | |||
|
180 Rounds cal. .45 |
FIRE CONTROLS Sight, Telescope, T152 Sight, Periscope, M10F | ||
|
90 Rounds cal. .30 Carbine | |||
|
12 Hand Grenades |
FUEL CAPACITY: 232 gallons | ||
|
12 Signal Flares |
GROUND CLEARANCES 18 3/4 inches | ||
|
ARMAMENT: 90mm Gun, M3A1 |
GROUND PRESSURES 13.3 psi. | ||
|
2-Cal. .30 MG M1919A4 |
HORSEPOWER/Ton: l6.7 | ||
|
1-Cal. .50 MG HB, M2 |
POWER TRAIN: CD 850-4 Transmission with 4.47:1 Final Drives | ||
|
1-Cal. .45 Sub-machine Gun M3 | |||
|
1-Cal. .30 Carbine M2 |
SPEED: Max. 31.6 mph | ||
|
CREW: 5 men |
TRACKS: Rubber Backed Steel-T80E1 or Rubber Chevron-T84E1. | ||
|
CRUISING RANGE: 80 miles | |||
|
DIMENSIONS: LOA 333 5/8 in. Firing or 277 9/16 Traveling. BOA 138 1/4 in. HOA 111 1/6 in. |
TURNING RADIUS: Pivot to infinite. | ||
|
WEIGHT: (Combat Loaded) 97,000 lb. (Empty) 90,300 lb. | |||
|
ARMOR: | |||
|
Hull, Above Fender |
Hull, Below Fender |
Floor Turret | |
|
Front 4" at 46° |
3" at 53° |
1" 4" | |
|
Sides 3" and 2" at 0° |
3" at 0" | ||
|
Rear 2" at 10° |
1/2" 3" | ||
|
Top 7/8" |
1" | ||
|
U. S. TANK, 90-MM, M47. | |
|
EMPLOYMENT: Armored division. | |
|
COMBAT WEIGHT: 48.6 tons. |
CREW: 5. |
|
LENGTH: 20.88 ft. (27.83 ft. w/gun). |
PITCH OF TRACK: 6 in. |
|
WIDTH: 11.52 ft. |
NUMBER OF TRACK LINKS: 78. |
|
HEIGHT: 9.71 ft. |
TRENCH CROSSING ABILITY: 8.5 ft. |
|
GROUND CLEARANCE: 19.25 in. |
FORDING ABILITY: 4 ft. |
|
TREAD CENTERS: 9.17 ft. |
OBSTACLE ABILITY: 3 ft. |
|
GROUND CONTACT: 12.83 ft. |
CLIMBING ABILITY: 31° (60%). |
|
WIDTH OF TRACK: 2 3 in. |
GROUND PRESSURE: 13.7 lbs/sq. in. |
|
TYPE OF TRACK: Rubber links with integral steel track pins double pin shoe. | |
|
RADIUS OF ACTION: 100 mi. | |
|
FUEL CONSUMPTION: 0.4 mi/gal. | |
|
FUEL CAPACITY: 233 gal. | |
|
SPEED: 37 mph. | |
|
ENGINE: Continental, Model AV-1790-5B, air-cooled, V12 cylinders, 6.5:1 compression ratio, 810 HP (gross) at 2, 800 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Cross-drive, three ranges (high, low, and reverse). |
IGNITION: Magneto. |
|
STEERING: Cross-drive transmission. | |
|
SUSPENSION: Vehicle is supported by six road wheels and torsion bars, with three return rollers on each side. Track is driven from the rear by a final drive unit. An idler wheel used to keep track tension, cast, homogenous armor steel. Power and manual operation. Traverse of turret 360°. | |
|
ARMAMENT: One gun,
90-mm, T119, (turret). One .50 cal. M2 (coaxial). | |
|
AMMUNITION STORAGE:
71 rds. - 90-mm. | |
239
|
U. S. HEAVY TANK: | |
|
TANK, 120-MM GUN M10 3 (T43). | |
|
COMBAT WEIGHT: 60 tons. |
CREW: 5. |
|
LENGTH: 33 ft. 2 in. |
PITCH OF TRACK: 6 in. |
|
WIDTH: 12 ft. 2 in. |
TRENCH CROSSING ABILITY: 8 2/3 ft. |
|
HEIGHT: 9 ft. 6 in. |
FORDING ABILITY: 4 ft. |
|
GROUND CLEARANCE: 16.38 in. |
OBSTACLE ABILITY: 3 ft. |
|
TREAD CENTERS: 118 in. |
CLIMBING ABILITY: 60%. |
|
GROUND CONTACT: 138 in. |
GROUND PRESSURE: 12.4 lbs/sq. in. |
|
WIDTH OF TRACK: 28 in. | |
|
TYPE OF TRACK: Rubber links with integral steel track pins, double pin shoe. | |
|
RADIUS OF ACTION: 100 mi. | |
|
FUEL CONSUMPTION: .36 mi/gal. | |
|
FUEL CAPACITY: 280 gal. | |
|
SPEED: 21 mph. | |
|
ENGINE: Continental model AV-1790-5B, air-cooled, V12 cylinder, 810 HP. | |
|
STARTER: Electric. |
ELECTRIC SYSTEM: 24-volt. |
|
TRANSMISSION: Cross-drive. | |
|
STEERING: Cross-drive transmission. | |
|
SUSPENSION: Vehicle is supported by seven dual road wheels on each side and torsion bars with six return rollers on each side. Track is driven from the rear by a final drive unit. | |
|
TURRET: Cast, homogeneous armor steel, power and manual operation. Traverse of turret 360°. | |
|
ARMOR: Front - 4 in. at 5 3°; side - 3 in. at 0°; turret front - 7 in. at 0°; turret side - 3 in. at 0°. | |
|
ARMAMENT: One
120-mm gun (T123E1). | |
|
AMMUNITION STORAGE:
34 rds. - 120-mm. | |
[240]
|
U. S. TWIN 40-MM: | |
|
SELF-PROPELLED TWIN 40-MM GUN M42(T141). | |
|
COMBAT WEIGHT: 24 tons. |
CREW: 6. |
|
LENGTH: Gun to rear - 19.08 ft. |
PITCH OF TRACK: 6 in. |
|
Gun forward - 17.10 ft. |
NUMBER OF LINKS: 74. |
|
WIDTH: 10.69 ft. |
TRENCH CROSSING ABILITY: 72 in. |
|
HEIGHT: To top of shield, 9.38 ft. |
FORDING ABILITY: 40 in. |
|
GROUND CLEARANCE: 17 in. |
OBSTACLE ABILITY: 28 in. |
|
GROUND CONTACT: 129 in. (approximately). |
CLIMBING ABILITY: 31° (60%). |
|
WIDTH OF TRACK: 21 in. |
GROUND PRESSURE: 8.5287 lbs/sq. in. |
|
TYPE OF TRACK: Steel, rubber bushed double pin, T91E3. | |
|
RADIUS OF ACTION: 30 to 100 mi. | |
|
FUEL CONSUMPTION: .8 mi/gal. | |
|
FUEL CAPACITY: 140 gal. | |
|
SPEED: 40 mph. | |
|
ENGINE: Continental, AOS-895-3, six cylinders, opposed, air-cooled, compression ratio 5.5:1, 500 HP at 2, 800 rpm. | |
|
STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
|
TRANSMISSION: Allison CD-500-3 cross-drive, three ranges (high, low, and reverse). |
IGNITION: Magneto. |
|
STEERING: Cross-drive transmission. | |
|
SUSPENSION: Vehicle supported by five road wheels, torsion bars, volute springs with suspended idler wheel and three return rollers and on each side. | |
|
TURRET: Gunner's shield 1/2 in. to 3/8 in. | |
|
ARMOR: Front—front plate 1/2 in. at 33°; floor section center 1 1/4 in.; side—floor section 1 in. at 30. | |
|
ARMAMENT: Twin 40-mm gun M2A1; .30 cal. MG (shield-mounted). | |
|
ELEVATION: 85° +/- 1°. Dep. 3° +/- 1° (power); 3° - 5° (man.). | |
|
TRAVERSE: 360°. |
AMMUNITION STOWAGE: 12 boxes 40-mm. |
|
PROJ. WEIGHT: 1.96 lb. to 2.06 lb. | |
|
REMARKS: Approximate muzzle velocity, 2,870 ft/sec. | |
[241]