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Soviet Union's BT-3 Bystrochodnij Tankov (Fast Tank)


BT-3 Fast Tank:
Soviet Union's BT-3 fast tank
BT-3 Fast Tank:
Soviet Union's BT-3 fast tank
BT-3 Fast Tank:
Soviet Union's BT-3 fast tank
BT-3 Fast Tank:
Soviet Union's BT-3 fast tank
BT-3 Bridgelayer:
Soviet Union's BT-3 bridgelaying fast tank


Had solid disc wheels with a 45 mm gun1,3,5

Steering on wheels was by a wheel that controlled the front wheels.2 On tracks, it was steered by the clutch and brake.2


Few produced.5

  • BT-3:


  • BT-3:
  • BT-3 Bridgelayer: Built in 1937.


Crew 32,4
Physical Characteristics  
Weight 10.2 tons2,4
Length 18'2,4
Height 7.25'2,4
Width 7.33'2,4
Width over tracks  
Ground clearance Wheels: 9"2
Tracks: 10.5"2
Ground contact length 12'2,4
Ground pressure 8.96 psi2
Turret ring diameter  
Main 45 mm3
45 mm L/462
45 mm L/46 A/TK4
MG 7.62 mm DTMG2,4
Side arms  
Main 962,4
MG 2,7092,4
Side arms  
Armor Thickness (mm)  
Hull Front, Upper 132,4
Hull Front, Lower  
Hull Sides, Upper 10 - 132,4
Hull Sides, Lower  
Hull Rear 102
Hull Top 6 - 102,4
Hull Bottom 6 - 102,4
Turret Front 10 - 134, 132
Turret Sides 132
Turret Rear 132
Turret Top 102
Engine (Make / Model) Liberty Aero2,4
Bore / stroke  
Cooling Water2
Cylinders V-122, 124
Net HP 3434, 343 - 400@2,000 rpm2
Power to weight ratio 34.3 hp/ton2
Compress ratio  
Transmission (Type) Wheels: Chain drive2
Tracks: Sliding Gear2
Steering ratio  
Electrical system  
Fuel (Type) Gasoline2,4
Quantity 88 gallons2
Road consumption  
Cross country consumption  
Traverse 360°2
Max speed - wheels 69 mph2,4
Cross country speed - tracks 39 mph2
Road radius - wheels 187 miles2,4
Cross country radius - tracks 125 miles2,4
Turning radius 40'2
Elevation limits -4° to +40°2
Fording depth 3.98'2
Trench crossing 6.85'2
Vertical obstacle - wheels 8"2
Vertical obstacle - tracks 29.8"2
Climbing ability  
Suspension (Type) Christie independent type2
Wheels each side 42
Return rollers each side  
Tires (Type)  
Width - tire 2 x 3.95"2
Width - track 10.25"2,4
Diameter 32.5"2
Number of links  
Tire tread  
Track centers/tread 6.33'2


  1. Tanks of World War II, Duncan Crow, 1979
  2. Profile AFV Weapons 37 Russian BT Series, John F. Milsom, 1971
  3. The Illustrated Guide to Tanks of the World, George Forty, 2006
  4. Airfix Magazine Guide 22 Russian Tanks of World War 2, John Milsom and Steve Zaloga, 1977
  5. Russian Tanks of World War II Stalin's Armored Might, by Tim Bean & Will Fowler, 2002
20th Century American Military History Crucial Site

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