IS tech tree branch
IS characteristics
Firepower
- Damage
- 390hp
- Penetration
- 175mm
- DPM
- 1,902
- Reload
- 12.30s
- Rate of fire
- 4.88/min
- Aim time
- 3.40s
- Accuracy
- 0.460m
- Dispersion moving
- 0.210
- Shell velocity
- 780m/s
- Caliber
- 122mm
- Gun depression
- 25°
- Gun elevation
- 6°
Mobility
- Top speed
- 34km/h
- Reverse speed
- 14km/h
- Engine power
- 750hp
- Power/weight
- 16.2hp/t
- Hull traverse
- 42.0°/s
- Turret traverse
- 28.0°/s
- Hard terrain
- 1.10
- Medium terrain
- 1.40
- Soft terrain
- 2.30
Survivability
- Hit points
- 1,080hp
- Hull armor (front)
- 120mm
- Turret armor (front)
- 100mm
- Fire chance
- 0%
- Ammo rack HP
- 180hp
- Track HP
- 190hp
Spotting & other
- View range
- 350m
- Signal range
- 625m
- Camo (still)
- 0.1%
- Camo (moving)
- 0.1%
- Weight
- 46.2t
IS historical reference
The IS-1 (IS-85) heavy tank was a thorough modernization of the KV-1. The tank featured the 85-mm D-5T gun. The IS-1 entered mass production in October 1943, but work was discontinued at the beginning of 1944, as the IS-2 (IS-122) tank entered mass production in December 1943. A total of 107 vehicles were manufactured.