The KV-4 family of tanks were built to rather loose requirements, and therefore had a very large variety of designs submitted. F.A. Marishkin's 85 ton design was one of the more reasonable ones, but it wasn't without an unusual feature. The tank had a second turret carrying a 45 mm gun on top of the main turret with a 107 mm gun.
Turret platform front: 125 mmUpper sloped front: 80 mmLower front: 130 mmRear: 125 mmRoof: 40-50 mmFront floor: 50 mmRear floor: 40 mm
Mass: 85 tonsFull length: 8.7 metersFull width: 3.8 metersFull height: 3.5 metersWheel base: 3 metersClearance: 0.55 metersContact surface length: 6.15 metersGround pressure: 0.53 cm/kg²Diesel engine type: 17-40Maximum engine power: 1200 hpRange: 12 hoursCrew: 7Armament:
1 107 mm gun1 45 mm gun1 coaxial machinegun (paired with 45 mm gun)2 independent machineguns (rear and front)100 107 mm rounds200 45 mm rounds1000 PPSh rounds for 3 submachineguns107 mm gun elevation: 15 degrees107 mm gun depression: -5 degrees45 mm gun elevation: 20 degrees45 mm gun depression: -5 to -10 degrees45 mm gun arc: 180 degreesMachinegun elevation: -Machinegun depression: -Machinegun range: -Suspension: torsion bar
Road wheels: steel with internal shock absorption