SU-14

The SU-14 was a prototype Soviet heavy self-propelled gun built on a T-35 chassis. The original prototype mounted a 152 mm gun M1935 (Br-2); the SU-14-1 variant of 1936 carried a 203 mm gun B-4 which could fire 48.9 kilogram shells at ranges up to 25 km. Its armour was 20 to 50 mm thick. It never entered serial production.

SU-14 heavy self-propelled gun
Prototype SU-14 during trials in 1934.
TypeSelf-propelled gun
Place of origin Soviet Union
Service history
Used by Soviet Union
WarsBattle of Moscow
Production history
No. built2 prototypes
Specifications
Mass48 tonnes
Crew7 or 8
ArmorFront: 50 mm
Side: 30 mm
Main
armament
203mm gun (B-4)
Secondary
armament
2 DT machine guns
EngineM-17-1T diesel
680 hp
SuspensionCoil spring
Maximum speed 22 km/h

Development

Work on the vehicle began in 1933, with a prototype built a year later. In 1935, several disadvantages were reworked and another prototype was built and designated SU-14-1. In February 1937, the prototypes successfully completed a series of performance tests. It was expected to go into production the following year. However, in 1937, Chief Designer P. N. Siachyntov was removed from the program, thus halting further development of the project.

In 1940, in connection with plans to use them during the war with Finland, armor was added to the two existing prototypes and they were redesignated SU-14-2. They later took part in the defense of Moscow in 1941 alongside the prototype SU-100Y. The first one (the original SU-14 prototype) was scrapped in 1960. The second prototype, as an SU-14-2, is on display at the Tank Museum in Kubinka.

  • SU-14 before the firing test, 1934
    SU-14 before the firing test, 1934
  • SU-14 with gun covered, in trial for navigation, 1934
    SU-14 with gun covered, in trial for navigation, 1934
  • SU-14 in the courtyard of the factory No 185, 1934
    SU-14 in the courtyard of the factory No 185, 1934
  • Prototype of SU-14-1 in trial, 1936
    Prototype of SU-14-1 in trial, 1936
  • Enhanced armoured SU-14-Br-2 in trial at Kubinka, 1940
    Enhanced armoured SU-14-Br-2 in trial at Kubinka, 1940
  • Self-propelled gun SU-14-2 armored museum in Kubinka 01
    Self-propelled gun SU-14-2 armored museum in Kubinka 01
  • Self-propelled gun SU-14-2 armored museum in Kubinka 02
    Self-propelled gun SU-14-2 armored museum in Kubinka 02
  • Self-propelled gun SU-14-2 armored museum in Kubinka 03
    Self-propelled gun SU-14-2 armored museum in Kubinka 03
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