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Great Britain's Bison Concrete Armored Vehicle

Design

With the shortage of vehicles in 1940, Concrete Ltd developed and built the Bison Concrete Armored Vehicle.1

None of the vehicles were the same as any truck that could be scavenged was convereted.1

Many of the chassis were AEC, Dennis, Leyland, or Thorneycroft pre-war trucks.1 These had wood placed for the bodies and then up to 6" / 152 mm of concrete poured over the top.1 This made the vehicle bullet proof and could handle hits from guns up to 37 mm.1

Two types were constructed.1 One with concrete over the engine and cab and then a pillbox mounted on the flatbed of the truck chassis.1 The second type had concrete completely covering the cab and flatbed covered in concrete with the only entrance being a trapdoor underneath.1

Typically these concrete armored vehicles could carry between 5 and 10 men and the heaviest armament being a light machinegun.1

Specifications

  Bison Concrete
Crew 5 - 101
Physical Characteristics  
Weight  
Length 20'1
6.1 m1
Height 9'1
2.74 m1
Width 7' 6"1
2.28 m1
Ground clearance  
Ground pressure  
Turret ring diameter  
Armament  
Main  
Secondary  
MG  
Side arms  
Quantity  
Main  
Secondary  
MG  
Side arms  
Armor Thickness (mm) 25 mm timber1
152 mm reinforced concrete on top1
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) Leyland1
Cylinders 61
Net HP 771
Transmission  
Fuel type Gasoline1
Octane  
Capacity  
Performance  
Traverse  
Speed - Road  
Speed - Cross Country  
Range - Road  
Range - Cross Country  
Turning radius  
Elevation limits  
Fording depth  
Trench crossing  
Vertical obstacle  
Suspension (Type)  
Wheels each side  
Tires  

Sources:

  1. World Encyclopedia of Armored Fighting Vehicles, Jack Livesey, 2006
20th Century American Military History Crucial Site