Christie M1931 Medium Tank
Designated Medium Tank T-3 by US Army

Christie was promissed a cash reward if he produced a practical tank.1 Even after a failed test 7 were ordered in June 1931.1 They were produced by the US Wheel Track Layer Corporation.1
Christie rebuilt the M1928 (T3 Medium) and added a turret.1 Engine cooling was found to be inadequate in testing.1
| Christie M1931 Medium Tank | |
|---|---|
| Crew | 21 |
| Physical Characteristics | |
| Weight | 10.5 tons1 10,668 kg1 |
| Length w/gun | 17' 10"1 5.43 m1 |
| Length w/o gun | |
| Height | 9' 3"1 2.21 m1 |
| Width | 7' 4"1 2.24 m1 |
| Ground clearance | |
| Ground contact length | |
| Ground pressure | |
| Turret ring diameter | |
| Armament | |
| Main | 37 mm1 |
| Secondary | |
| MG | 1: 7.72 mm MG |
| Side arms | |
| Quantity | |
| Main | |
| Secondary | |
| MG | |
| Side arms | |
| Armor Thickness (mm) | 161 |
| Hull Front, Upper | |
| Hull Front, Lower | |
| Hull Sides, Upper | |
| Hull Sides, Lower | |
| Hull Rear | |
| Hull Top | |
| Hull Bottom | |
| Turret Front | |
| Turret Sides | |
| Turret Rear | |
| Turret Top | |
| Engine (Make / Model) | Liberty1 |
| Transmission | |
| Capacity | |
| Performance | |
| Traverse | |
| Max Speed | Wheels: 46 mph1, 74 kph1 |
| Cross Country | |
| Road radius | Wheels: 250 miles1, 402 km1 Tracks: 170 miles1, 274 km1 |
| Turning Radius | |
| Elevation Limits | |
| Fording depth | |
| Trench crossing | |
| Vertical Obstacle | |
| Suspension (Type) | |
| Wheels each side | |
| Return rollers each side | |
| Track length | |
| Tires | |
| Track width | |
| Track centers/tread | |
| Production |
Sources:
- The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
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