M31 ARV
| GENERAL DATA | |||
| Other Designation(s) | - |
||
| Type | Armored Recovery Vehicle |
Radio Equipment | SCR 508 |
| Manufacturer(s) | Rock Island Arsenal,
Detroit Tank Arsenal; American Locomotive Works |
||
| Crew | 6 |
||
| Production Quantity | 509 |
Production Period | from December /1942 |
| DIMENSIONS | |||
| Combat weight with T48 or T51 tracks | 29770 kg |
Ground pressure | 0.943 kg/cm² |
| Length /hull | 5.64 m |
Length w/Gun | 5.64 m |
| Barrel Overhang | 0 m |
Height with boom lowered | 3.00 m |
| Width with side doors | 2.72 m |
Ground clearance | 0.43 m |
| Fire height (75 mm gun) | 1.75 m |
Turret ring diameter | 1.38 m |
| ARMAMENT | |||
| Primary Armament | 2 x .30 caliber MG M1919A4 (7.62
mm) (1) |
Ammunition Carried | ? |
| Traverse | None or Manual |
Elevation | None or Manual |
| Secondary Armament | 1 x .45cal (9 mm) M1 sub-machine gun (2) |
Ammunition Carried | 1200 |
| Location | 1: AA mount on turret, bow - 2:
turret inside |
||
| ARMOR | ||||
| Assembly | Riveting & Cast
|
|||
| Armor Detail | Front |
Side |
Rear |
Top/Bottom |
| Hull | 51 mm / round |
38 mm / 90° |
38 mm / 80-90° |
25 mm / 0°(front) 13 mm / 0°(rear) |
| Superstructure | 38 mm /
37° (lower) 51 mm / 60° (upper) |
38 mm /
90° |
38 mm /
80° |
13 mm /
0-7° |
| Turret | 51 mm / 43° & round |
51 mm / 85° & round |
51 mm / 90° & round |
22 mm / 0° |
| AUTOMOTIVE | |||
| Engine | Continental R975 C1 |
Type & Displacement | R9, 15.9 liters |
| Horsepower (maximum) | 350-400 hp at 2400 rpm |
Power/Weight Ratio | 13.4 hp / ton |
| Gearbox | Synchromesh: 5 forward, 1 reverse |
Steering | Controlled differential & Steering levers |
| Brakes | Mechanical, external contracting |
Fuel Capacity | 796 L Gasoline (Petrol) |
| SUSPENSION | |||
| Type | Vertical volute spring suspension
(VVSS) |
Road wheels | 3 bogies, 2 road wheels/bogie |
| Track return rollers | 1 on top of each bogie |
Sprocket-Wheels | 13 tooth, front |
| Idler Sprockets | Adjustable, rear |
Shock absorbers | - |
| Track Type | T48, outside guides, double pin, chevron, rubber | ||
| Width | 406 or 420.6 mm |
Pitch | 150 mm |
| Links(shoes) | 79 |
Track ground contact | 3.73 m |
| Track Type | T49, outside guides, double pin, parallel bars, steel | ||
| Width | 406 or 420.6 mm |
Pitch | 150 mm |
| Links(shoes) | 79 |
Track ground contact | 3.73 m |
| Track Type | T51, outside guides, double pin, smooth, rubber | ||
| Width | 406 or 420.6 mm |
Pitch | 150 mm |
| Links(shoes) | 79 |
Track ground contact | 3.73 m |
| Track Type | T54E1, outside guides, double pin, chevron, steel | ||
| Width | 406 or 420.6 mm |
Pitch | 150 mm |
| Links(shoes) | 79 |
Track ground contact | 3.73 m |
| PERFORMANCES | |||
| Maximum Speed | 34-39 km/h on road 18 km/h off road |
Range | 193 km on road |
| Mileage | 412L/100km on road |
Maximum grade | 31° (from horizontal) |
| Trench crossing | 2.30 m |
Vertical obstacles | 0.61 m |
| Maximum fording depth | 1.00 m |
Minimum turning diameter | 19 m |
| Sources | |||
| AFV Database | Vehicles.com | - |
|
Drawings |
File |
