M3A1 Light Tank
| GENERAL DATA | |||
| Other Designation(s) | General Stuart
Mark III (IV for diesel version) (British Army) |
||
| Type | Light Tank |
Radio Equipment | SCR-508 |
| Manufacturer(s) | American Car &
Foundry Co. |
||
| Crew | 4 |
|
|
| Production Quantity | 4410 |
Production Period | May 1942 - Jan. 1943 |
| DIMENSIONS | |||
| Combat weight | 12900 kg -14300 kg (Diesel) |
Ground pressure | 0.737 kg/cm² |
| Length w/Gun | 4.531 m |
Length /Hull | 4.531 m |
| Barrel Overhang | 0 m |
Height over MG mount | 2.39 m |
| Width | 2.24 m |
Ground clearance | 0.419 m |
| Fire height | 1.90 m |
Turret ring diameter | 1.187 m |
| ARMAMENT | |||
| Primary Armament | 37 mm Gun M6 L/56 on M23 Mount (1) |
Ammunition Carried | 106 |
| Traverse | 360° (manual or hydraulic) |
Elevation | +20° to -10° (manual with Stabilizer) |
| Traverse speed (360°) | 20°/sec |
Sight | M5A1 |
| Secondary Armament | 3 x .30 caliber MG M1919A4 (7.62 mm) (2) |
Ammunition Carried | 7220 |
1 x .45cal (9 mm) M1 sub-machine gun (3) |
500-540 |
||
| Location | 1: turret - 2: bow, coaxial, AA
- 3: turret inside |
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| ARMOR | ||||
| Assembly | Riveting and welding
|
|||
| Armor Detail | Front |
Side |
Rear |
Top/Bottom |
| Hull | 44 mm / 67° |
25 mm / 90° |
25 mm / 70° |
13 mm / 0°(front) 10 mm / 0°(rear) |
| Superstructure | 16 mm /
21° (lower) 38 mm / 73° (upper) |
25 mm /
90° |
25 mm /
90° (lower) 25 mm / 31° (upper) |
13 mm /
0° |
| Turret | 38 mm / 80° |
25 mm / 90° |
25 mm / 90° |
13 mm / 0-15° |
| Mantlet | 51 mm /
76-90° |
- |
- |
- |
| AUTOMOTIVE (Stuart III) | |||
| Engine | Continental W-670-9A |
Type & Displacement | R7, 10.9 liters |
| Horsepower (maximum) | 262 hp at 2400 rpm |
Power/Weight Ratio | 20.3 hp / ton |
| Gearbox | Synchromesh: 5 forward, 1 reverse |
Steering | Controlled differential & Steering levers |
| Brakes | Mechanical, external contracting |
Fuel Capacity | 245 + 2x114 auxiliary L Gasoline (Petrol) |
| AUTOMOTIVE (Stuart IV/Diesel) | |||
| Engine | Guiberson T-1020-4 |
Type & Displacement | R9 |
| Horsepower (maximum) | 220-245 hp at 2200 rpm |
Power/Weight Ratio | 17.13 hp / ton |
| Gearbox | Synchromesh: 5 forward, 1 reverse |
Steering | Controlled differential & Steering levers |
| Brakes | Mechanical, external contracting |
Fuel Capacity | 189 + 2x114 auxiliary L Diesel |
| SUSPENSION | |||
| Type | Vertical volute spring suspension
(VVSS) |
Road wheels | 2 bogies, 2 road wheels/bogie |
| Track return rollers | 3 |
Sprocket-Wheels | 14 tooth, front |
| Idler Sprockets | Adjustable, rear |
Shock absorbers | - |
| Track Type | T16E1: Outside guide, double pin, rubber bushed, reversible rubber | ||
| Width | 295 mm |
Pitch | 140 mm |
| Links(shoes) | 66 |
Track ground contact | 2.97 m |
| Track Type | T16E2: Outside guide, double pin, rubber bushed, non-reversible rubber | ||
| Width | 295 mm |
Pitch | 140 mm |
| Links(shoes) | 66 |
Track ground contact | 2.97 m |
| PERFORMANCES (Stuart III) | |||
| Maximum Speed | 58 km/h on road 32 km/h off road |
Range | 113-217* km on road 160* km off road |
| Mileage | 217 L/100 km on road |
Maximum grade | 30° (from horizontal) |
| Trench crossing | 1.80 m |
Vertical obstacles | 0.61 m |
| Maximum fording depth | 0.91 m |
Minimum turning diameter | 13 m |
(*) with auxiliary fuel tanks
| PERFORMANCES (Stuart IV/Diesel) | |||
| Maximum Speed | 58 km/h on road 32 km/h off road |
Range | 135 km on road |
| Mileage | ? L/100 km on road |
Maximum grade | 30° (from horizontal) |
| Trench crossing | 1.80 m |
Vertical obstacles | 0.61 m |
| Maximum fording depth | 0.91 m |
Minimum turning diameter | 13 m |
| Sources | |||
| AFV Database | Vehicles.com | - |
|
Drawings |
File |
/USA/Models/1-LightTanks/M3A1Stuart/Bt-off.jpg)
/USA/Models/Dioramas/Bouganville-1943/Stuart-Bt-off.jpg)
