SU-14

The SU-14 was a prototype Soviet heavy self-propelled gun that started out as an open topped vehicle, with the armor being added later on when it was converted into a direct-fire assault gun in 1941. The original prototype, using a modified T-28 chassis, mounted a 203 mm gun B-4 and by 1937 a 150 mm naval gun B-30; the SU-14-1 variant of 1936, using a T-35 chassis, mounted the 203 mm gun B-4 and later the 152 mm gun M1935 (Br-2). Neither version ever entered serial production.

Key facts

Weapon.name: SU-14 Heavy Self-Propelled Gun
Weapon.image: Prototype of SU-14 in trial, 1934.jpg
Weapon.image_size: 300
Weapon.caption: Prototype SU-14 during trials in 1934.
Weapon.type: Self-propelled gun
Weapon.is_vehicle: yes
Weapon.design_date: 1933
Weapon.production_date: 1934
Weapon.number: 2 prototypes (1 SU-14 and 1 SU-14-1)
Weapon.variants: SU-14-1
Weapon.crew: 7 or 8
Weapon.suspension: Coil spring
Weapon.speed: 22-25 km/h
Weapon.primary_armament: 203mm howitzer M1931 (B-4) or 152mm gun M1935 (Br-2) or 152mm naval gun (B-30)
Weapon.secondary_armament: 2-4 DT machine guns
Weapon.armour: Front: 20 mm Side: 6-10 mm (1934 version) Front: 50 mm Side: 30-60 mm (1940 version)
Weapon.engine: M-17-1T diesel
Weapon.engine_power: 680 hp