T56 GMC characteristics
Firepower
- Damage
- 75hp
- Penetration
- 110mm
- DPM
- 1,125
- Reload
- 4.00s
- Rate of fire
- 15.00/min
- Aim time
- 2.00s
- Accuracy
- 0.400m
- Dispersion moving
- 0.280
- Shell velocity
- 823m/s
- Caliber
- 57mm
- Gun depression
- 25°
- Gun elevation
- 5°
Mobility
- Top speed
- 50km/h
- Reverse speed
- 14km/h
- Engine power
- 400hp
- Power/weight
- 28.2hp/t
- Hull traverse
- 30.0°/s
- Turret traverse
- 44.0°/s
- Hard terrain
- 1.70
- Medium terrain
- 1.90
- Soft terrain
- 2.70
Survivability
- Hit points
- 228hp
- Hull armor (front)
- 38mm
- Turret armor (front)
- 13mm
- Fire chance
- 0%
- Ammo rack HP
- 110hp
- Track HP
- 70hp
Spotting & other
- View range
- 290m
- Signal range
- 750m
- Camo (still)
- 0.3%
- Camo (moving)
- 0.2%
- Weight
- 14.2t
T56 GMC historical reference
Development of a 3 inch self-propelled gun on the M3A3 Stuart chassis started in September 1942. Trials on the Aberdeen Proving Ground in November demonstrated that the gun was too heavy for the light tank chassis. Never entered mass production.