"T-43 tank turret with the D-5 system
During installation of the D-5 system into the T-43 tank turret, an insert is welded into the gun port, as the D-5 system is narrower than the F-34. An armoured shield is installed in the upper front part of the turret.
The seats of the gunner and commander are located in the same place as with the F-34. The turret traverse mechanism remains in the same place. The elevation mechanism is lowered by 40 mm relative to the elevation mechanism used on the F-34.
The trigger of the system is electric. The trigger is installed in the handle of the elevation flywheel. An electric trigger also works the coaxial DT machinegun. There is also a backup hand firing mechanism for the D-5 gun.
The sights and observation devices of the turret are installed in the same way as they are when in the F-34 is installed.
The radio is located in the same place as when the F-34 is installed.
50 rounds of ammunition are carried, 29 of which are carried in the floor, 16 in the turret bustle, and 5 on the right side of the turret.
Comparative characteristics of the F-34 and D-5 systems
Weight of the system with mantlet, kg
Distance from the trunnions to the rear of the recoil guard, mm
Recoil length, mm
Maximum recoil force, kg
Bore axis height relative to trunnion, mm
88 above trunnion
35 below trunnion
Maximum elevation, degrees
Minimum depression, degrees
Maximum shell mass, kg
Maximum round length, mm
Mass of the tank with the gun