Britain Inf Tank Mk IV (Churchill 5 - V) Ordnance classification - A22

Tweet The Inf Tank Mk IV was designed in 1942, manufactured by Vauxhall Motors based on the existing fully tracked Churchill and was in use from 1943 to 1945. General Details Specifications Operational Date(s) 1943 - 1945 Ordnance classification A22 Quantity Produced 241 Weight 40 tonne Crew 5 M.G's small 2 M.G's large(>10mm) n/a Length 7.51 mtr Width 3.28 mtr Height 2.49 mtr Engine Details/Performance Max Road Speed 16 mph Max Cross Country Speed 8 mph Range Road 90 miles Range Cross Country 36 miles Fuel Type Petrol Fuel Capacity 190 gal Horse Power 350 hp Power/Weight 8 hp/tonne General Information The Inf Tank Mk IV was designed in 1942, manufactured by Vauxhall Motors based on the existing fully tracked Churchill and was in use from 1943 to 1945. The vehicle was powered by Bedford '350HP' petrol powerplant producing 350 HP which could drive the vehicle on roads at up to 16 mph with a range of about 90 miles before refuelling. Its cross country performance was adequate providing a max speed of about 8 mph and a range of about 36 miles. It was armed with 2 light machine guns. The Churchill Infantry tank was designed as a tank that could cope with movement through heavily shelled areas, and provide adequate protection for the crew. The vehicle was layed out in a similar way to the tanks from the First World War with the rear Bedford 350hp engine driving the tracks, to the front via small idlers to the fron main idler, then via 11small sprung road wheels. The first vehicles had many mechanical faults and hence many subsequent modifications. The MkV was the close support version with a 95mm howitzer replacing the 6pdr. Armour Details Turret Front 88mm @ 0° (88mm) Side 76mm @ 0° (76mm) Rear 89mm @ 0° (89mm) Top 16mm @ 90° (16mm) Superstructure Front 88mm @ 20° (94mm) Side 76mm @ 0° (76mm) Rear 64mm @ 0° (64mm) Top 16mm @ 90° (16mm) Hull Front 38mm @ 70° (111mm) Side 76mm @ 0° (76mm) Rear 64mm @ 0° (64mm) Top 16mm @ 90° (16mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 111 mm - Minimum 16 mm

Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.

The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive and numerous books and websites that have provided the detailed information that has not been available anywhere else. The information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre, the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.

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