BT-7A
| GENERAL DATA | |||
| Other Designation(s) | BT-7A (A = Artillery) |
||
| Type | Fast/Convertible Assault Gun |
Radio Equipment | None/71-TK-1* |
| Manufacturer(s) | Factory No. 183
Kharkov Locomotive Works (KhPZ) |
||
| Crew | 3 (Command/loader, gunner, driver) |
||
| Production Quantity | 156 |
Production Period | 1940-1941 |
(*) Command Tank only
| DIMENSIONS | |||
| Combat weight | 14000 kg |
Ground pressure | 0.74 kg/cm² |
| Length /hull | 5.66 m |
Length w/Gun | 5.66 m |
| Barrel Overhang | 0 m |
Height | 2.42 m |
| Width | 2.29 m |
Ground clearance | 0.40 m |
| ARMAMENT | |||
| Primary Armament | 76.2 mm Gun KT-28 L/16.5 (1) |
Ammunition Carried | 40*-48 |
| Traverse | 360° (manual) |
Elevation | -4° to +40° (manual) |
| Traverse speed (360°) | - |
Sight | ? |
| Secondary Armament | 3 x 7.62 mm DT MG (2) |
Ammunition Carried | 2394 |
| Location | 1: Turret - 2: Rear Turret, Coaxial
(gun), AA |
||
(*) Command Tank only
| ARMOR | ||||
| Assembly | Welding & riveting
|
|||
| Armor Detail | Front |
Side |
Rear |
Top/Bottom |
| Hull | 22 mm / round |
13 mm / 90° |
13 mm / 32° (lower) 13 mm / 80° (upper) |
6-10 mm / 0° |
| Superstructure | 15 mm /
30° (glacis) 22 mm / 72° (driver) |
- |
10 mm /
35° |
10 mm /
0° |
| Turret | 20 mm / 90° |
20 mm / 90° |
20 mm / 90° |
10 mm / 0-5° |
| Mantlet | 20 mm /
90° |
- |
- |
- |
| AUTOMOTIVE | |||
| Engine | M-17T Liberty modified |
Type & Displacement | V12 |
| Horsepower (maximum) | 450 hp at 1750 rpm |
Power/Weight Ratio | 32.14 hp / ton |
| Gearbox | 3 forward, 1 reverse |
Fuel Capacity | 790 L Diesel |
| SUSPENSION | |||
| Type | Christie coil spring |
Road wheels | 4 independent double-road wheels |
| Track return rollers | - |
Sprocket-Wheels | Rear, double |
| Idler Sprockets | Front, double |
Shock absorbers | - |
| Track Type | Central guides, smooth steel links | ||
| Width | 260 mm |
Pitch | ? mm |
| Links(shoes) | 73 |
Track ground contact | 3.60 m |
| PERFORMANCES | |||
| Maximum Speed | 50-72 km/h on wheels 38-52 km/h on tracks |
Range | 500 km on wheels 350 km on tracks |
| Mileage | 230 L/100 km on wheels 160 L/100 km on tracks |
Maximum grade | 40° (from horizontal) |
| Trench crossing | 2.0 m |
Vertical obstacles | 0.55-0.75 m |
| Maximum fording depth | 1.2 m |
Minimum turning diameter | 12.2 m |
| Sources | |||
| OnWar.com | TNT Hors-Série n°3 | - |
|
Drawings |
File |
