TOG1

Tank, Heavy, TOG I
TOG1 tank during trials, shown straddling a ditch
TypeSuper-heavy tank
Place of originUnited Kingdom
Production history
ManufacturerWilliam Foster and Co. Ltd.
No. built1
Specifications (as built)
Mass80 long tons (90 short tons; 81 t)
Length10.1 m (33 ft 2 in)
Width3.1 m (10 ft 2 in)
Height3 m (9 ft 10 in)
Crew8 (commander, gunner, loader, driver, 4x sponson gunners)

Armour62 mm (2.4 in)
Main
armament
75 mm (2.95 inch) howitzer[1]
Secondary
armament
QF 2 pdr
EnginePaxman-Ricardo diesel 12TP driving English Electric generator
600 hp (450 kW) [2]
Transmission2 English Electric motors
SuspensionUnsprung
Maximum speed 14 km/h (8.7 mph)

The Tank, Heavy, TOG 1 was a prototype British super-heavy tank produced in the early part of the Second World War in the expectation that battlefields might end up like those of the First World War. It was designed so it could cross churned-up countryside and trenches. A single prototype was built, and followed by an improved model (the TOG 2), but interest faded with the successful performance of another cross-country design, the Churchill tank, and the mobile war that was being fought.