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Centaur Mk IV of RMASG near Tilly-sur-Seulles, 13 June 1944. The original Royal Marines Armoured Support Group was formed during the Second World War and took part in the Invasion of Normandy, where it provided fire support for Royal Marine units landing. [3]
The Centaur IV close support version, equipped with a 95 mm howitzer, saw service in small numbers as part of the Royal Marine Armoured Support Group on D-Day. Originally intended to be used from landing craft [ 33 ] and serve as static pillboxes, these examples retained the engines, allowing the marines to drive the tanks inland. [ 17 ]
The tank howitzer was used to arm the Churchill Mark V and VIII, the Cromwell VI & VIII and the Centaur IV tanks. [3] The howitzer was built up from a section of a QF 3.7-inch anti-aircraft gun barrel, the breech mechanism of the Ordnance QF 25 pounder field gun/howitzer and the recoil mechanism of the Ordnance QF 6 pounder anti-tank gun. [4]
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.
The Cruiser Tank Mk IV (A13 Mk II) was a British cruiser tank of the Second World War. It followed directly on from the Tank, Cruiser, Mk III (A13 Mk I). The first Mk IVs were Mk IIIs with extra armour fitted to the turret. Later Mk IVAs were built with the complete extra armour.
Tank gun versions of the 6-pounder were used in the Crusader Mark III, Cavalier, Centaur Mk I and II, Cromwell Mk I to III, Valentine Mk VIII to X and Churchill Mk III and IV, and also in the Canadian Ram Mk II and the prototype American Light Tank T7E2.
The newer Liberty Mark IV gave more power than the one in the Crusader. The operation of the steering brakes and gear changing remained pneumatic. Outwardly, the design of Cavalier is very similar to the related Cromwell and Centaur. Cavaliers do not have the upper air intake of Cromwell, which is optional on the Centaur.
Losses of the Mark I in France were not replaced but the Mark II Matilda remained in production. Infantry and cruiser tanks were expected to engage enemy tanks, hence the use of both the 2-pounder and then 6-pounder on both. [10] They were followed into service by the Infantry tank Mk III Valentine tank and A.22 Infantry Tank Mk IV Churchill ...