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SU-14 heavy self-propelled gun

Prototype of SU-14 in trial, 1934

Type Self-propelled gun
Place of origin  Soviet Union
Weight 48 tonnes
Crew 7 or 8

Armor 50 mm front, 30 mm side
152 mm gun (U-30 or BR-2)
2 DT machine guns
Engine M-17-1T diesel
680 hp
Suspension Coil spring
Speed 22 km/h

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The SU-14 was a prototype Soviet heavy self-propelled gun built on a T-35 chassis. The SU-14-1 variant of 1936 carried a 152.4 mm B-10 (also called 1935 model) naval cannon which could fire 43.5 kilogram shells at ranges up to 20 km. Its armour was 20 to 30mm thick. It never entered serial production.

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 - PN Siaczyntowa 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. 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.


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