United States' M13, M14, M17 Gun Motor Carriage
Photos
M13 in the Battle of the Bulge: |
Design
Armor on sides and rear hinged down.
Prototype
Production
- M13: 535
- Production: 1942
- Manufacturer: Autocar Co., Diamond T Motor Co., White Motor Co.
- M14: 1,905
- Production: 1943
- Manufacturer: International Harvester
- M17: 1,000
- Production: 1943 - 1944
- Manufacturer: International Harvester
Variants
- M13: The gun mount was developed by the W.L. Maxson Co. Standardized in September 1942. Once the M16 was ready it was designated Substitute Standard. Manufactured by Autocar Co., Diamond T Motor Co., and White Motor Co. M3 chassis. Had Maxson twin .50 cal MG turret. It's sight was a Navy Mark IX reflex. Elevation of 90° to - 11.5°. Could traverse 74° per second. 400-500 rounds per minute. Range was 7,200 yards. Feed boxes held 200 rounds.
- M14: Designated Substitute Standard in October 1942. Manufactured by International Harvester Co. M5 chassis. Had 2 .50 cal MG in M33 mount. Many supplied to Britain.
- M17: Designated Substitute Standard in December 1942. Manufactured by International Harvester Co. M5 chassis. Had 4 .50 cal MG in M45 mount.
Usage
Specifications
| M13, M14, M17 | |
|---|---|
| Crew | Commander, driver, gunner, loaders (2) |
| Physical Characteristics | |
| Weight | 20,000 lb |
| Length w/gun | 20' 2 5/8" |
| Length w/o gun | |
| Height | 7' 5" |
| Width | 7' 3.5" |
| Ground clearance | |
| Ground contact length | |
| Ground pressure | |
| Turret ring diameter | |
| Armament | |
| Main | M13, M14: 2: M2 .50 cal M17: 4: M2 .50 cal |
| Secondary | |
| MG | |
| Side arms | .45 Submachine gun M1903 .30 Rifle 3: M1 Carbines Grenades |
| Quantity | |
| Main | 5,000 |
| Secondary | |
| MG | |
| Side arms | .45: 420 Grenades: 36 |
| Armor Thickness (mm) | |
| Hull Front, Upper | 12.72 |
| Hull Front, Lower | 6 |
| Hull Sides, Upper | 6 |
| Hull Sides, Lower | 6 |
| Hull Rear | 6 |
| Hull Top | |
| Hull Bottom | 6.35 |
| Turret Front | |
| Turret Sides | |
| Turret Rear | |
| Turret Top | |
| Engine (Make / Model) | White 160AX |
| Transmission | |
| Capacity | |
| Performance | |
| Traverse | 360° |
| Speed - Road | 45 mph |
| Speed - Cross Country | |
| Range - Road | 180-215 miles |
| Turning Radius | |
| Elevation Limits | M13: -10° to +90° |
| Fording depth | 2' 8" |
| Trench crossing | |
| Vertical Obstacle | 1' |
| Suspension (Type) | Vertical volute |
| Wheels each side | |
| Return rollers each side | |
| Track length | |
| Tires | |
| Track width | |
| Track centers/tread | 5' 3.25" |
