T56 GMC

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T56 GMC
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.

3-inch AT Gun M7

57 mm Gun M1

T56 GMC

SCR 510

SCR 610

SCR 619

Continental W-670

Continental W-670 Series 12

Wright Continental R-975C1

T56 GMC

T57 GMC

Shell Types:

AP
APCR
HE
AP
APCR
HE

Equipment:

Consumables:

Tech Tree:

T56 GMC
0

Firepower:

Ammunition70 (rounds)
Caliber76 (mm)
Damage110 / 110 / 175 (HP)
Penetration101 / 157 / 38 (mm)
Rate of Fire10.71 (rounds/min)
Average Damage per Minute1179 (HP)
Shells in the Magazine  
Time for Loading Between Shots  (s)
Time for Complete Loading  (s)
Gun Loading5.60 (s)
Aiming Time2.20 (s)
Dispersion at 100 m0.42 (m)

Mobility:

Weight/Load Limit14.97 / 15.00 (t)
Engine Power262 (h.p.)
Specific Power17.50 (h.p./t)
Top Speed50 (km/h)
Reverse Speed14 (km/h)
Traverse Speed28 (deg/s)
Turret Traverse Speed44 (deg/s)

Survivability:

Hit Points285 (HP)
Hull Armor38 / 25 / 12 (mm)
Turret Armor12 / 12 / 12 (mm)

Spotting:

View Range290 (m)
Signal Range325 (m)
 

Crew:

Commander
Gunner
Driver
Loader
Radio Operator