IS-3
| GENERAL DATA | |||
|---|---|---|---|
| Formal Designation | IS-3 Model 1945 | ||
| Manufacturer(s) | Factory No.100 Kirovskiy Works in Chelyabinsk (ChKZ or Tankograd) | ||
| Production Quantity | 350* | Production Period | 1945* |
| Type | Heavy Tank | Crew | 4 |
| Overall Length | 10.0 m (32' 10") | Barrel Overhang | 3.3 m (10' 10") |
| Width | 3.20 m (10' 6") | Height | 2.45 m (8' 0") |
| Combat Weight | 46500 kg (103000 lbs) | Radio Equipment | 10RK |
| FIREPOWER | |||
|---|---|---|---|
| Primary Armament | 122mm Gun D-25 | Ammunition Carried | 28 |
| Traverse (degrees) | 360° | Elevation (degrees) | -3° to +20° |
| Traverse speed (360°) | n.a. | Sight | TSh-17, POP |
| Secondary Armament | 2 x 7.62mm DT MG (coaxial, turret rear) | Ammunition Carried | 1000x7.62mm |
| 1 x 12.7mm DShK MG (AA) | 945x12.7mm | ||
| MOBILITY CHARACTERISTICS | |||
|---|---|---|---|
| Engine Make & Model | V-2-IS (V-2K) | Track Links | 87-90/track |
| Type & Displacement | V12, 38.9 liters | Track Width | 65 cm (26") |
| Horsepower (max.) | 600hp @2000rpm | Track Ground Contact | 436 cm (172") |
| Power/Weight Ratio | 11.0 hp/tonne | Ground Pressure | 0.82 kg/cm2 (11.7 psi) |
| Gearbox | 4 forward, 1 reverse | Ground Clearance | 0.45 m (1' 6") |
| Fuel | Diesel | Turning Radius | 0 |
| Range on/off road | 150(225)/120(175) km | Gradient | 36° |
| Mileage on/off road | 350/450 l/100km | Vertical Obstacle | 1.0 m (3' 3") |
| Fuel Capacity | 520 (+ 270 external) l | Fording | 1.3 m (4' 3") |
| Speed on/off road | 37/19 km/h | Trench Crossing | 2.5 m (8' 2") |
| ARMOR PROTECTION | ||||
|---|---|---|---|---|
| Armor Detail | Front | Side | Rear | Top/Bottom |
| Hull | 120mm @47° | 90mm @90° | 60mm @49° | 20mm @0° |
| Superstructure | 120mm @32°(glacis) | 90mm @30° + 30mm @60° |
60mm @42° | 20mm @0° |
| 120mm @18° | ||||
| Turret | 160mm @round | 100-220mm @40° | 110-220mm @50° | 20mm @0-6° |
| Mantlet | 200mm @round | - | - | - |
| TECHNICAL DRAWINGS AND OTHER IMAGES |
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IS-3 Model 1945 by S. Zaloga
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| NOTES |
|---|
| *A prototype was completed in November 1944. Production began sometime in 1945. The production quantity estimate is believed to be for the first six months of 1945. Production continued in the postwar period. The IS-3 is not believed to have not been ready for employment before hostilities ceased in the European theater of operations. |
| REFERENCES |
|---|
| JWAFV, RT, IS2, GBT, RTAV, OOBTr, PH30r, Russian Military Zone |