Tank, Heavy Assault, A33 (Excelsior)
Type Heavy tank
Place of origin United Kingdom
Production history
Manufacturer English Electric
Weight 40 tons
Length 22 ft 8 in (6.9 m)
Width 11 ft 2 in (3.4 m)
Height 7 ft 11 in (2.4 m)
Crew 5 (Commander, gunner, loader, driver, co-driver)

Armour 114 mm (4.5 in)
Ordnance QF 75 mm
64 rounds
2 x 7.92 mm Besa machine gun
Engine Rolls-Royce Meteor V12 petrol
600 hp (447 kW)
Suspension Improved Christie
99 mi (160 km)
Speed 24 mph, (off-road 12 mph)

The Tank, Heavy Assault, A33 (Excelsior) was a British experimental heavy tank based on the Cromwell (A27) design developed in the Second World War when there were concerns as to performance of the Churchill tank.

Development Edit

After the Dieppe Raid in August 1942, there was concern that the Churchill was not as good as expected and a tank to combine the infantry and cruiser tank roles was planned.

While two lines of tank were still policy there was interest in standardizing on common components. The design used the Cromwell's combination of Rolls-Royce Meteor engine and Merrit-Brown transmission.

English Electric built two prototypes on a Cromwell tank hull the first with the suspension of the US M6 Heavy Tank and the second with a widened Cromwell track and armoured skirts. The design included extra armour and an Ordnance QF 75 mm gun. When the problems of the early Churchill models were worked out, the project was dropped.[1]


See also Edit

References Edit

  1. Fletcher, David (1993). The Universal Tank. HMSO, for REME Museum, 87. ISBN 0-11-290534-X. 
  • White BT, British Tanks 1915-1945 Ian Allen p68-69
British armoured fighting vehicle production during World War II


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