This paper tank is a BT-5 fast tank, designed by Cho. The BT tanks ("fast tank" or "high-speed tank") were a series of Soviet cavalry tanks produced in large numbers between 1932 and 1941. They were lightly armoured, but reasonably well-armed for their time, and had the best mobility of all contemporary tanks of the world. The BT tanks were known by the nickname Betka from the acronym, or its diminutive Betushka.
The direct successor of the BT tanks would be the famous T-34 medium tank, introduced in 1940, which would replace all of the Soviet fast tanks, infantry tanks, and medium tanks in service.
Combat weight: 11500kg
Car length: 5.52m
Vehicle width: 2.23 m
Ride Height: 2.21m
Engine: M-5 (modified Liberty Aero engine)
Maximum speed road / off-road: 111/63 km / h
Maximum stroke road / off-road: 301/201 km
Fire equipment 45mm the A / the Tk L/42; 2x7.62mm the DT MG
Ammunition 45mm: 72/115 rounds; 7.62mm: 2394 issued
Gradeability: 40 degrees
The high 0.20/0.76m of the vertical wall
More trench width: 2.7m
Wading deep: 1.2m