| 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 |
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- |
- |
| TECHNICAL
DRAWINGS AND OTHER IMAGES |
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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 |
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