M4 Tractor
The M4 High-Speed Tractor for World War II was an artillery tractor used by the US Army from 1943.
| M4 Tractor, High Speed, 18 tons | |
|---|---|
M4 high speed tractor with 90-mm ammo box | |
| Type | Artillery tractor |
| Place of origin | United States |
| Service history | |
| In service | 1943–1960 |
| Used by | US Army Belgian Army |
| Wars | World War II |
| Production history | |
| Designed | 1942 |
| Manufacturer | Allis-Chalmers |
| Produced | March 1943-August 1945 |
| No. built | 5,811 |
| Variants | 90 mm antiaircraft gun tractor 155 mm gun or 8-inch howitzer tractor |
| Specifications | |
| Mass | 31,400 lb (14.2 t) |
| Length | 210 in (5.33 m) |
| Width | 97 in (2.46 m) |
| Height | 99 in (2.51 m) |
| Crew | 1 + 11 |
Main armament | M2 Browning machine gun |
| Engine | Waukesha 145GZ OHV I6 gasoline engine 210 hp (157 kW) |
| Power/weight | 14.70 hp/t |
| Suspension | Horizontal volute spring |
Operational range | 100 mi (160 km) |
| Maximum speed | 35 mph (56 km/h) |
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