ST-66 characteristics
Firepower
- Damage
- 300hp
- Penetration
- 217mm
- DPM
- 2,195
- Reload
- 8.20s
- Rate of fire
- 7.32/min
- Aim time
- 1.90s
- Accuracy
- 0.370m
- Dispersion moving
- 0.220
- Shell velocity
- 1,180m/s
- Caliber
- 100mm
- Gun depression
- 15°
- Gun elevation
- 6°
Mobility
- Top speed
- 50km/h
- Reverse speed
- 16km/h
- Engine power
- 720hp
- Power/weight
- 18.0hp/t
- Hull traverse
- 40.0°/s
- Turret traverse
- 35.0°/s
- Hard terrain
- 1.30
- Medium terrain
- 1.50
- Soft terrain
- 2.00
Survivability
- Hit points
- 1,040hp
- Hull armor (front)
- 120mm
- Turret armor (front)
- 250mm
- Fire chance
- 0%
- Ammo rack HP
- 210hp
- Track HP
- 220hp
Spotting & other
- View range
- 370m
- Signal range
- 570m
- Camo (still)
- 0.2%
- Camo (moving)
- 0.2%
- Weight
- 40.0t
ST-66 historical reference
Blueprints for the NST (noviy sredniy tank or new medium tank) were completed in 1966. One distinctive feature of the vehicle was its four-loop chassis with a drive for each loop. The transmission allowed the amount of power transferred to each track loop to be regulated. The project remained in blueprints.