See also: Tank, Mark IV

The British tank Mark IV was the successor of the tanks Mark I, Mark II and Mark III used during the First World War. Mark IV existed in two distinct versions, a version Male , provided with guns, and a version Female provided exclusively with Mitrailleuse S.

History

The construction of Mark IV began in May 1917. It was a completely re-examined version of its predecessor, the Mark III. Its principal improvements were:
  • a maximum shielding of 14 mm instead of 12 Misters

  • a gasoline tank armoured placed outside the cockpit.
  • of the casemates smaller and returning in order to reduce the obstruction during road displacements or by railway.
  • a better comfort for the crew with in particular of the cases of rations and drinking water.
  • a more complete equipment (compass, light signals between the pilot and the employee with the shiftings of speed).
  • of the shorter guns and the Lewis machine-guns.
  • a muffler and a surface punt on the roof of the case to allow an external loading.

60% of the produced tanks were Female (595 on the whole), the production of the version Male rising with 420 specimens.

At the time of the Battle of Cambric in November 1917, 476 tanks of this type were used by the British. From July 1918 it (but never completely) was gradually replaced by its successor, the Mark V.

With 1015 specimens built entirely, Mark IV was the British tank more running of the First World War, but it was also the most widespread tank in the German inventory at the end of the war. Indeed, for lack of a sufficient number of armoured tanks of national construction, German re-used a great number of Mark IV captured at the time of the Cambric battle. And at the time of the Battle of Niergnies in October 1918, one of the two only combat of tanks of the First World War, of the tanks Mark IV British and German faced.

One also built 205 tanks of this type deprived of armament and being used as tug boats ( Tank Tenders ).

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