"T-43 tank turret with the D-5 system
Description
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
F-34 | D-5 | |
Weight of the system with mantlet, kg | 1300 | 1600 |
Caliber, mm | 76 | 85 |
Distance from the trunnions to the rear of the recoil guard, mm | 1444 | 1540 |
Recoil length, mm | 400 | 300 |
Maximum recoil force, kg | 7600 | 17000 |
Bore axis height relative to trunnion, mm | 88 above trunnion | 35 below trunnion |
Maximum elevation, degrees | 25 | 25 |
Minimum depression, degrees | 5 | 5 |
Muzzle velocity | 760 | - |
Maximum shell mass, kg | 9 | 15.5 |
Maximum round length, mm | 706 | 905 |
Sights | PT-4-7, TMFD | PT-4-15, KT |
Mass of the tank with the gun | 34100 | 34050 |