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U. S. GUN MOTOR CARRIAGE: (See figure 113.) |
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CARRIAGE, MOTOR, 155-MM GUN, M40. |
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MANUFACTURER: Pressed Steel Car Co. |
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COMBAT WEIGHT: 40.5 tons. |
CREW: 8. |
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LENGTH: 20.6 ft. (29.7 ft. overall). |
PITCH OF TRACK: 6 in. |
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WIDTH: 10.3 ft. |
NUMBER OF TRACK LINKS: 79. |
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HEIGHT: 10.8 ft. |
TRENCH CROSSING ABILITY: 7.7 ft. |
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GROUND CLEARANCE: 19.25 in. |
FORDING DEPTH: 36 in. |
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TREAD CENTERS: 8. 4 ft. |
OBSTACLE ABILITY: 34 in. |
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GROUND CONTACT: 164 in. |
CLIMBING ABILITY: 31° (60%) slope. |
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WIDTH OF TRACK: 2 3 in. |
GROUND PRESSURE: 10.7 lbs/sq. in. |
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TYPE OF TRACK: Rubber block, double pin shoe. |
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RADIUS OF ACTION: 107 mi. |
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FUEL CONSUMPTION: .5 mi/gal. |
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FUEL CAPACITY: 215 gal. |
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SPEED: 24 mph on roads; 5-20 mph cross-country. |
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ENGINE: Continental, nine cylinders, radial, air-cooled, gasoline, 400 HP at 2,400 rpm, compression ratio 5.7:1. |
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STARTER: Electric. |
ELECTRICAL SYSTEM: 24-volt. |
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TRANSMISSION: Automatic, five speeds forward, one reverse. |
IGNITION: Magneto. |
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STEERING: Controlled differential. |
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SUSPENSION: Horizontal volute spring. Three bogies of two wheels each and two return rollers on each side. |
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TURRET: None. |
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ARMOR: Front - .5 in.; side - .5 in. |
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ARMAMENT: One 155-mm gun M2, caliber length 45. |
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ELEVATION: -5° to +45° |
MAX. RANGE: 25,715 yd. |
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TRAVERSE: 18° R or L. |
AMMUNITION STOWAGE: 155-mm - 20 rds. |
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PROJ. WEIGHT: 95 lb. |
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REMARKS: This was the U. S. 155-mm "Long Tom" mounted on the tank chassis. It saw service in ETO in great numbers. |
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