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BT-5

The BT-5 ("Bystrohodnyi tank" or "Fast Tank type 5") was the second tank in the Soviet BT series of tanks. The BT-5 improved on the previous BT-2, such as a new turret fitted with a 45 mm anti-tank gun that was also used on the T-26 and the BT-5's younger brother, the BT-7. The BT-5 would enter service in 1933, with the Red Army first seeing action with the Second Spanish Republic in the Spanish Civil War in 1937 until the end of World War II, with between 1884 and 2108 units being produced with production of the tank beginning in March 1933 with production ending in 1935.

Key facts

Weapon.name: BT-5 light tank
Weapon.image: File:BT tank in the Breakthrough of the Siege of Leningrad Museum 2.jpg
Weapon.caption: A surviving BT-5 at the Breakthrough of the Siege of Leningrad Museum
Weapon.type: Light tank
Weapon.origin: Soviet Union
Weapon.is_vehicle: Tank
Weapon.service: 1933-1945
Weapon.used_by: Spanish Republic (captured) Francoist Spain (captured)
Weapon.wars: Spanish Civil WarSecond Sino–Japanese WarSoviet–Japanese border conflictsInvasion of PolandWinter WarWorld War II Continuation War
Weapon.designer: J. Walter Christie, Kharkiv Morozov Machine Building Design Bureau (KMDB)
Weapon.design_date: 1930-1931
Weapon.manufacturer: Malyshev Factory

via Wikipedia infobox

Article

6 sections

Contents

Design
Combat History
In Spanish service
In Finnish service
References
Further reading

== Design == The BT-5 had no armor improvements over the BT-2, with its thickest armor being 13 mm at its thickest and the thinnest being 6 mm thick. The suspension was a Christie suspension, which could have the tracks taken off to have road-wheels to use on the road. To turn the tank without the tracks, the driver had a steering wheel that turned the first wheel on each side. It took about a half hour to take off the tracks. The origins of the Christie suspension came from American racecar designer J. Walter Christie. When he failed to get the United States Army interested, he sold the design to the USSR. Due to American sanctions on the USSR, Christie sold the design as tractors. The armaments of the BT-5 were the 45 mm anti-tank gun M1932 (19-K) cannon and one coaxial 7.65 mm DP machine gun with 115 rounds of ammunition for the main cannon. The BT-5 had a crew of three: a commander/gunner, a loader, and a driver. Both the commander/gunner and loader sat in the turret, and the driver sat in the front of the hull. The turret was a cylinder shape and some tanks had radio antennas around the turret. The ammunition was stored in the turret and under the commander/gunner, and loader. The BT-5 had a newly developed M-5 engine as its source of power. The fuel tank could hold 360 liters of fuel, and the BT-5 had an operational range of 200 kilometers. The BT-5 had a maximum speed of 72 kilometers per hour, or 45 miles per hour on flat roads. The BT-5 had a 400-horsepower M-5 engine and a power-weight ratio of 35 horsepower per tonne. The BT-5 was 5.58 meters long 2.23 meters wide 2.25 meters tall and weighed 11.5 tonnes and the hull was riveted together with the front part shaped like a truncated pyramid.