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Mark IV tank. The Mark IV (pronounced Mark four) was a British tank of the First World War. Introduced in 1917, it benefited from significant developments of the Mark I tank (the intervening designs being small batches used for training). The main improvements were in armour, the re-siting of the fuel tank and ease of transport.
3.7 mph (6.0 km/h) maximum [ 1 ] British heavy tanks were a series of related armoured fighting vehicles developed by the UK during the First World War. The Mark I was the world's first tank, a tracked, armed, and armoured vehicle, to enter combat. The name "tank" was initially a code name to maintain secrecy and disguise its true purpose.
[a] The French and British armies had used tanks en masse earlier in 1917, although to considerably less effect. [4] After a big British success on the first day, mechanical unreliability, German artillery and infantry defences exposed the frailties of the Mark IV tank. On the second day, only about half of the tanks were operational and ...
Three German A7Vs engaged three British Mark IV tanks, two of which were female tanks armed only with machine-guns. The two Mark IV females were damaged and forced to withdraw but the male tank, armed with 6-pounder guns, hit and disabled the lead A7V, which was then abandoned by its crew. The Mark IV continued to fire on the two remaining ...
Medium Mark A Whippet. The Medium Mark A Whippet was a medium tank employed by the British in World War I. Intended for fast mobile assaults, it was intended to complement the slower British heavy tanks by using its relative mobility and speed in exploiting any break in the enemy lines. [ 3 ]
Mark V tank. The British Mark V tank[a] was an upgraded version of the Mark IV tank. The tank was improved in several aspects over the Mark IV, chiefly the new steering system, transmission and 150 bhp engine, but it fell short in other areas, particularly its insufficient ventilation leading to carbon monoxide poisoning for the crew. [5]
Captured British Mark IV tanks used by German troops. The battle began on 15 July when 23 German divisions of the First and Third armies – led by Bruno von Mudra and Karl von Einem – assaulted the French Fourth Army under Henri Gouraud east of Reims (the Fourth Battle of Champagne (French: 4e Bataille de Champagne).
6.4 km/h (4.0 mph) cross-country. The Sturmpanzerwagen A7V was a heavy tank introduced by Germany in 1918 during World War I. One hundred chassis were ordered in early 1917, ten to be finished as fighting vehicles with armoured bodies, and the remainder as Überlandwagen cargo carriers. [2] The number to be armoured was later increased to 20.