Mark IV tank
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The Mark IV was a British tank of the First World War. Introduced in 1917, it benefited from significant developments of the Mark I tank. The main improvements were in armour, the re-siting of the fuel tank and ease of transport. Wikipedia
Length: 26 ft 5 in (8.05 m)
Armour: 0.5 inches (12 mm)
Crew: 8
Designer: Walter Gordon Wilson; William Tritton
Engine: Daimler-Foster, 6-cylinder in-line sleeve valve 16 litre petrol engine; 105 bhp at 1,000 rpm
Fuel capacity: 70 Imperial gallons
Main armament: Male: Two 6-pounder (57-mm) 6 cwt QF guns with 332 rounds; Female: five.303 Lewis guns