| SU-14 Heavy Self-Propelled Gun | |
|---|---|
 Prototype SU-14 during trials in 1934. | |
| Type | Self-propelled gun |
| Place of origin |  Soviet Union |
| Production history | |
| Designed | 1933 |
| Produced | 1934 |
| No. built | 2 prototypes (1 SU-14 and 1 SU-14-1) |
| Variants | SU-14-1 |
| Specifications | |
| Crew | 7 or 8 |
| Armor | Front: 20 mm Side: 6-10 mm (1934 version) Front: 50 mm Side: 30-60 mm (1940 version) |
Main armament | 203mm howitzer M1931 (B-4) or 152mm gun M1935 (Br-2) or 152mm naval gun (B-30) |
Secondary armament | 2-4 DT machine guns |
| Engine | M-17-1T diesel 680 hp |
| Suspension | Coil spring |
| Maximum speed | 22-25 km/h |
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). Both versions never entered serial production.[1]
- ^ Pasholok