SU-122
| GENERAL DATA | |||
|---|---|---|---|
| Formal Designation | SU-122 | ||
| Manufacturer(s) | Factory No.9 Ural Heavy Machinery Factory (UTZM or Uralmash) | ||
| Production Quantity | 1148 | Production Period | Dec. 1942 - early 1944 |
| Type | Assault Gun | Crew | 5 |
| Length overall | 6.95 m (22' 10") | Barrel Overhang | 1.03 m (3' 5") |
| Width | 3.00 m (9' 10") | Height | 2.32 m (7' 7") |
| Combat Weight | 30900 kg (68000 lbs) | Radio Equipment | 9R |
| FIREPOWER | |||
|---|---|---|---|
| Primary Armament | 122mm Howitzer M-30S | Ammunition Carried | 40 |
| Traverse (degrees) | Manual (10°L - 10°R) | Elevation (degrees) | -3° to +25° |
| Traverse speed (360°) | - | Sight | n.a. |
| Secondary Armament | - | Ammunition Carried | - |
| MOBILITY CHARACTERISTICS | |||
|---|---|---|---|
| Engine Make & Model | V-2-34 | Track Links | 72/track |
| Type & Displacement | V12, 38.9 liters | Track Width | 55.0 cm (22") |
| Horsepower (max.) | 500hp @1800rpm | Track Ground Contact | 372 cm (146") |
| Power/Weight Ratio | 16.2 hp/t | Ground Pressure | 0.75 kg/cm2 (10.7 psi) |
| Gearbox | 5 forward, 1 reverse | Ground Clearance | 0.40 m (1' 4") |
| Fuel | Diesel | Turning Radius | 7.6 m (24' 11") |
| Range on/off road | 270+/165+ km | Gradient | 35° |
| Mileage on road | 155 l/100km | Vertical Obstacle | 0.8 m (2' 7") |
| Fuel Capacity | 420 (+ 270 external)1 L | Fording | 1.3 m (4' 3") |
| Speed on road | 55 km/h | Trench Crossing | 2.5 m (8' 2") |
| ARMOR PROTECTION | ||||
|---|---|---|---|---|
| Armor Detail | Front | Side | Rear | Top/Bottom |
| Hull | 45mm @30° | 45mm @90° | 45mm @45° | 20mm @0° |
| Superstructure | 45mm @40° | 45mm @70°(front) | 45mm @50° | 20mm @0° |
| 45mm @50°(rear) | 45mm @70°(crew) | |||
| Mantlet | 65mm @rounded | - | - | - |
| TECHNICAL DRAWINGS AND OTHER IMAGES |
|---|
SU-122 Model 1943 by George R. Bradford
|
| NOTES |
|---|
| 1In general, one of the four 90 liters external fuel tanks was reserved for oil. |
| REFERENCES |
|---|
| TWWII, PV, T-34IA, ST, RTAV, George R. Bradford |