BT-7
Light cavalry tank / From Wikipedia, the free encyclopedia
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"BT-8" redirects here. For the first aircraft designed and built by the Seversky Aircraft Corporation, see Seversky SEV-3.
The BT-7 [lower-alpha 2] was the last of the BT series of Soviet cavalry tanks that were produced in large numbers between 1935 and 1940. It was lightly armoured, but reasonably well-armed for the time, and had much better mobility than other contemporary tank designs. The BT tanks were known by the nickname Betka from the acronym, or its diminutive, Betushka.[2]
Quick Facts Type, Place of origin ...
BT-7, BT-7M | |
---|---|
Type | Light cavalry tank |
Place of origin | Soviet Union |
Service history | |
In service | 1935–45 |
Used by | Soviet Union Mongolia Finland (captured) Hungary (captured) Romania (captured) Nazi Germany (captured) |
Wars | Soviet–Japanese Border Wars World War II Winter War Continuation war Soviet–Japanese War |
Production history | |
Designer | Morozov |
Designed | 1935[1] |
Manufacturer | KhPZ |
Produced | 1935–40 |
No. built | 5753 [lower-alpha 1] |
Variants | BT-7A, BT-7M (BT-8), BT-IS[1] |
Specifications (BT-7 model 1937[1]) | |
Mass | 13.9 tonnes (13.7 long tons; 15.3 short tons) |
Length | 5.66 m (18 ft 7 in) |
Width | 2.29 m (7 ft 6 in) |
Height | 2.42 m (7 ft 11 in) |
Crew | 3 (commander, loader, driver) |
Armour | Hull: 6–40 mm Turret: 10–15 mm |
Main armament | 45 mm anti-tank gun M1932/38 (20-K) |
Secondary armament | 2 x 7.62 mm DT machine gun |
Engine | Mikulin M-17T (V-12) gasoline 450 hp (340 kW) at 1,750 rpm |
Power/weight | 32.37 hp/tonne |
Transmission | Chain drive (tracks: sliding gear) |
Suspension | Christie |
Ground clearance | 0.305 m (10 in) |
Fuel capacity | 620 litres (160 US gal) |
Operational range | Road: 250 km (160 mi) Off-road: 120 km (75 mi) |
Maximum speed | Road: 72–86 km/h (45–53 mph) Off-road: 50 km/h (31 mph) |
Steering system | steering stick |
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The BT-7's successor was the famous T-34 medium tank, introduced in 1940, which replaced all of the Soviet fast tanks, infantry tanks, and medium tanks then in service.