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WORLD WAR 2

Thornycroft Bison


Concrete Armoured Lorry / Improvised Mobile Pillbox (1940)


Land Systems / Battlefield

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Bison Concrete Armorured Lorries were improved fighting vehicles for the British Home Guard in the early years of World War 2.



Authored By: Staff Writer | Last Edited: 07/13/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site.
British local industry built several major improved fighting vehicles for local defense in the event of an Axis invasion of the British mainland. This threat seemed very real after the Fall of France in May of 1940 and it was realized that the homeland lacked true defensive measures against an all-out ground or air assault. This led to companies taking very standard lorries (trucks) and adding all sorts of protection and arms to them - resulting in fighting vehicles that held little military value but assuaged civilian fears of a direct invasion. At their core, the vehicles were nothing more than armored, mobile pillboxes.

Thornycroft was one of the British concerns to work on several armored lorries during the period and one of its creations was the "Bison Concrete Armoured Lorry" to serve with British Home Guard units. It arrived in 1940 with design attribution given to Charles Bernard (C.B.) Mathews who headed Concrete, Limited.

The "Bison" name went on to identify several similar-minded designs as there proved no standard for the vehicle - any truck chassis could form its basis so long as it held the power and strength to haul a heavyweight superstructure. This often meant that engines were of whatever make and model was available to the original chassis and wheel arrangements could vary between two or three axles. Standard designs sat concrete slabs over key sections of the truck - such as the engine block and crew spaces. For the crew within, vision slots were provided for engaging enemy elements through rifle fire and pistols. There were hatches for entry-exit of passengers and operating crew. Concrete was used due to the unavailability of more valuable metals in wartime.

In the end, the invasion of the British homeland never took place and Bison lorries were relied upon for more basic second-line duties such as serving in defense of RAF airfields for the remainder of their days. Since the heavy vehicles lacked strong off-road performance, it played well to the Bison's strength that it operated on level ground.

Three major Bison types were identified - Type 1 was the lightest form and fitted a canvas-topped armored cab while Type 2 was similar but dimensionally larger and carried a separate crew compartment aft. The Type 3 was the largest offering - and consequently the heaviest - and integrated the crew compartment with the driver's compartment for improved communications.

In any form their tactical value and usefulness was always in questioned - though their psychological effect on British civilians, thanks in large part to local propaganda, was well-known.

Specifications



Service Year
1940

Origin
United Kingdom national flag graphic
United Kingdom

Crew
6
CREWMEN
Production
40
UNITS


Thornycroft / Concrete Limited / Manpower Services - United Kingdom
National flag of the United Kingdom United Kingdom (retired)
(OPERATORS list includes past, present, and future operators when applicable)
Infantry Support
Support allied ground forces through weapons, inherent capabilities, and / or onboard systems.
Armored Car
Design, of typically lightweight nature, providing onroad/offroad capabilities for the scouting or general security roles.
Special Purpose
Special purpose design developed to accomplish an equally-special battlefield role or roles.


Length
22.1 ft
6.73 m
Width
7.6 ft
2.33 m
Weight
33,069 lb
15,000 kg
Tonnage
16.5 tons
LIGHT
(Showcased structural values pertain to the Thornycroft Bison Type 2 production variant. Length typically includes main gun in forward position if applicable to the design)
Powerplant: 1 x 4-cylinder gasoline-fueled engine developing around 80 horsepower.
Speed
14.9 mph
(24.0 kph)
Range
93.2 mi
(150.0 km)
(Showcased performance specifications pertain to the Thornycroft Bison Type 2 production variant. Compare this entry against any other in our database)
Variable - typically personal weapons carried by the occupants.


Supported Types


Graphical image of the M3 Grease Gun submachine gun


(Not all weapon types may be represented in the showcase above)
Not Applicable.


Bison - Base Series Name


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