M7B1 105 mm Howitzer Motor Carriage
| GENERAL DATA | |||
| Other Designation(s) | Priest (British
Army) |
||
| Type | Self-Propelled Gun (Indirect Fire) |
Radio Equipment | - |
| Manufacturer(s) | Pressed Steel
Car Co. |
||
| Crew | 7 |
|
|
| Production Quantity | 826 |
Production Period | March 1944 - February 1945 |
| DIMENSIONS | |||
| Combat weight | 22700 kg |
Ground pressure | 0.730 kg/cm² |
| Length /hull | 6.02 m |
Length w/Gun | 6.02 m |
| Barrel Overhang | 0 m |
Height over AA MG Mount | 2.95 m |
| Width | 2.87 m |
Ground clearance | 0.43 m |
| Fire height | 1.90 m |
Turret ring diameter | - |
| ARMAMENT | |||
| Primary Armament | 105 mm Howitzer M2A1 on M4 mount
(1) |
Ammunition Carried | 69 |
| Traverse | 45° (15° left and 30° right) |
Elevation | +35° to -5° (manual) |
| Traverse speed (360°) | Manual |
Sight | ? |
| Secondary Armament | .50 caliber MG M2HB (12.7 mm) (2) |
Ammunition Carried | 300 |
1 x .45cal (9 mm) M1 sub-machine gun (3) |
1620 |
||
| Location | 1: hull right front - 2: Ring mount
at hull right front - 3: hull inside |
||
| ARMOR | ||||
| Assembly | Riveting & Cast
|
|||
| Armor Detail | Front |
Side |
Rear |
Top/Bottom |
| Hull | 51-108 mm / round |
38 mm / 90° |
13 mm / 90° |
25 mm / 0°(front) 13 mm / 0°(rear) |
| Superstructure | 13 mm /
60° |
13 mm /
90° |
13 mm /
90° |
13 mm /
0-7° & Open |
| AUTOMOTIVE | |||
| Engine | Ford GAA |
Type & Displacement | V8, 18.0 liters |
| Horsepower (maximum) | 450-500 hp at 2600 rpm |
Power/Weight Ratio | 22 hp / ton |
| Gearbox | Synchromesh: 5 forward, 1 reverse |
Steering | Controlled differential & Steering levers |
| Brakes | Mechanical, external contracting |
Fuel Capacity | 662 L Gasoline (Petrol) |
| SUSPENSION | |||
| Type | Vertical volute spring suspension
(VVSS) |
Road wheels | 3 bogies, 2 road wheels/bogie |
| Track return rollers | 1 at rear of each bogie |
Sprocket-Wheels | 13 tooth, front |
| Idler Sprockets | Adjustable, rear |
Shock absorbers | - |
| Track Type | T48, outside guides, double pin, chevron, rubber | ||
| Width | 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 | 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 | 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 | 420.6 mm |
Pitch | 150 mm |
| Links(shoes) | 79 |
Track ground contact | 3.73 m |
| PERFORMANCES | |||
| Maximum Speed | 42 km/h on road 26 km/h |
Range | 190 km on road |
| Mileage | ? L/100 km on road |
Maximum grade | 31° (from horizontal) |
| Trench crossing | 2.30 m |
Vertical obstacles | 0.61 m |
| Maximum fording depth | 0.91 m |
Minimum turning diameter | 19 m |
| Sources | |||
| AFV Database | Vehicles.com | - |
|
Drawings |
File |
