The 85 mm gun and enlarged turret for the T-34 were developed as separate projects. I already wrote about what happens when you put the 85 mm gun in the standard hex turret, but there was also the option for the opposite: an enlarged turret with the same 76 mm F-34.
T-34 with the F-34 gun (left) and D-5 gun (right)
Production T-34 | T-34 with 1600 mm turret ring and D-5 gun | T-34 with 1600 mm turret ring and F-34 gun | |
Combat weight | 31,400 kg | 32,700 kg | 32,800 kg |
Armament | |||
Cannon | 1 76 mm F-34 | 1 85 mm D-5 | 1 76 mm F-34 |
Machineguns | 2 DT | 2 DT | 2 DT |
Armour | |||
Front | 45 mm | 45 mm | 45 mm |
Sides | 45 mm | 45 mm | 45 mm |
Rear | 45 mm | 45 mm | 45 mm |
Top | 20 mm | 20 mm | 20 mm |
Floor | 20 mm | 20 mm | 20 mm |
Turret | 54 mm (cast) | 54 mm (cast) | 54 mm (cast) |
Ammunition | |||
Cannon rounds | 97 | 55 | 106 |
Machinegun rounds | 3599 | 2745 | 4148 |
Grenades | 20 | 20 | 20 |
Crew | 4 | 5 | 5 |
Gun elevation | 30 degrees | 23 degrees | 20 degrees |
Gun depression | -5 degrees | -5 degrees | -5 degrees |
Fuel capacity | 870 L | 860 L | 860 L |
covered by armour | 600 L | 590 L | 590 L |
not covered by armour | 270 L | 270 L | 270 L |
Observation devices | 10 | 10 | 10 |
slits in turret | 2 | 1 | 1 |
slits in commander’s cupola | 5 | 5 | 5 |
driver’s mirror prisms | 2 | 2 | 2 |
MK-IV devices in the cupola | 1 | 1 | 1 |
MK-IV devices in the turret | - | 1 | 1 |