| 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 |
|
|
| 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 |
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