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Soviet Union's BA-27 armored car

Design

In 1924 the design of the BA-27 started.2

Chassis

The 4x2 F-15 chassis was used.2

Engine

Initial models of the BA-27 had difficulties with the engine over heating.2 There were louvers but when these were closed the engine would overheat.2 Behind the radiator a large fan was installed which helped some.2 To fix the engine cooling problems there was an air scoop in front that forced air into the radiator.2

Wheels

The rear axle had dual wheels on each side, but these were narrow tires and the BA-27 often bogged down in soft ground.2

Prototypes

The first prototypes were completed in 1926.2

Production

Starting in 1927 the first production models were completed.2 Production ended in 1931.2

  • Total: ~1002,3
    • Manufactured at: Izhorskiy2, Leningrad Weapon Factory3

Variants

  • BA-27:
  • BA-27 Model 1927: Crew of four.2 Fighting compartment was small.2
  • BA-27 Model 1928: Main production model.2 Crew of three.2 Used Ford-AA chassis.2 New GAZ four cylinder engine (40 HP).2 Turret was from the T-18 light tank.2

Specifications

  BA-27
Crew 2 - 44, 41
Physical Characteristics  
Weight 4.33 tons1, 4.5 tons4
4,400 kg1
Length 14.82'4, 15' 2"1
4.62 m1
Height 7' 3"1, 8'4
2.52 m1
Width 5.93'4, 5' 11"1
1.81 m1
Ground clearance 10"4
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main 37 mm1,4
Secondary  
MG - coaxial 1: 7.62 mm1
1: 7.62 mm DTMG4
Side arms  
Quantity  
Main 2504
Secondary  
MG 3,0004
Side arms  
Armor Thickness (mm) 4-71, 6 - 134
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) AMO1, AMO-34
Cylinders 41, 64
Net HP 36@1,700 rpm1, 60@2,200 rpm4
Cooling Water4
Transmission  
Fuel type Gasoline1
Fuel  
Octane  
Quantity 18 gallons4
Performance  
Traverse  
Speed - Road  
Speed - Cross Country  
Range 80 miles4
Range - Road  
Range - Cross Country  
Turning radius  
Elevation limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Suspension (Type)  
Wheels each side  
Tires 44
  BA-27 Model 1927
Crew 32
Physical Characteristics  
Weight 4.33 tons2
4,400 kg2
Length 15' 2"2
4.62 m2
Height 8' 3"2
2.52 m2
Width 5' 7"2
1.7 m2
Ground clearance  
Ground contact length  
Ground pressure  
Turret ring diameter  
Armament  
Main 37 mm Hotchkiss2
Secondary  
MG - coaxial 1: 7.62 mm DT MG2
Side arms  
Quantity  
Main  
Secondary  
MG  
Side arms  
Armor Thickness (mm) 82
Hull Front, Upper  
Hull Front, Lower  
Hull Sides, Upper  
Hull Sides, Lower  
Hull Rear  
Hull Top  
Hull Bottom  
Turret Front  
Turret Sides  
Turret Rear  
Turret Top  
Engine (Make / Model) AMO F-152
Cylinders 42
Net HP 352
Cooling  
Transmission  
Fuel type Gasoline2
Fuel  
Octane  
Quantity  
Performance  
Traverse  
Speed - Road 22 mph2
35 kph2
Speed - Cross Country  
Range  
Range - Road 168 miles2
270 km2
Range - Cross Country  
Turning radius  
Elevation limits  
Fording depth  
Trench crossing  
Vertical Obstacle  
Suspension (Type)  
Wheels each side  
Tires  

Sources:

  1. The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
  2. World Encyclopedia of Armored Fighting Vehicles, Jack Livesey, 2006
  3. Russian Tanks and Armored Vehicles 1917 - 1945, Wolfgang Fleischer, 1999
  4. Profile AFV Weapons #60, Russian Armoured Cars (to 1945), John F. Milsom, 1973
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