|Origin & Designer||[@designer]|
|Armament||2 x .30 cal M1919A4 M.M.G.s|
|Ammunition Carried||2000 x .30 cal|
|Armour||Hull Gun Mantlet: 89mm.|
Upper Hull Front: 51mm.
Lower Hull Front: 51mm.
Upper Hull Sides: 38mm.
Lower Hull Sides: 38mm.
Hull Rear: 38mm.
Hull Top: 25mm.
Hull Bottom: 13mm.br> Turret Gun Mantlet: 51mm.
Turret Front: 51mm.
Turret Sides: 51mm.
Turret Rear: 51mm.
Turret Top: 22mm.
|Engine||Wright (Continental) R975 C1|
|Transmission||5 Forward & 1 Reverse|
|Maximum Road Range||119 miles (193 km)|
|Maximum Cross Country Range||87 miles (140 km)|
|Maximum Road Speed||21 mph (34 kph)|
|Maximum Road Speed + Trailer||[@maximum_road_speed_trailer]|
|Maximum Cross Country Speed||16 mph (25 kph)|
|Maximum Road Towing Speed||[@maximum_road_towing_speed]|
|Notes||The M31 was an early attempt by the US military to develop a tank recovery vehicle. The vehicle was based on the chassis of the M3 medium tank. These were surplus models which had been replaced as a battle tank by the M4. As a part of the conversion they stripped the vehicle of all its main weapons except for the bow machine gun. The turret was reversed and had a dummy gun attached rear. Another dummy gun was welded on the old gun sponson which was now a door. It had a crane attached to the turret front, this along with booms and jacks could lift up to 27.000 kg.|