BT-SV

BT-SV / BT-SW-2
Type	Light cavalry tank
Place of origin	Soviet Union
Production history
Designer	Tsyganov group
Designed	1937-1938
Specifications (BT-SV)
Weight	25 tons
Length	562 cm
Width	280 cm
Height	217.5 cm
Crew	4
Armour	16-25 mm
Main armament	45-mm 20KL tank gun
Secondary armament	7.62-mm MG
Engine	Model M-17T 500 hp
Power/weight	38.1 hp/tonne
Operational range	120 km
Speed	52 km/h (32.3 mph)

The BT-SV was an experimental Soviet light tank. In 1936, Soviet engineer Tsiganova proposed a new high-speed (BT) light tank based on the BT-7. The design was to incorporate sloped armor similar to the T-34, which was also being developed at the time, and a transmission identical to that of the BT-7. Only 2 prototypes were built, both of which saw field testing. The vehicle never saw mass production, and resources were instead focused on the production of the T-34 medium tank.