Britain Inf Tank Mk I (Matilda) Ordnance classification - A11

Tweet The Inf Tank Mk I was designed in 1935, manufactured by Vickers-Armstrong and was in use from 1936 to 1940. General Details Specifications Operational Date(s) 1936 - 1940 Ordnance classification A11 Quantity Produced 140 Weight 12 tonne Crew 2 M.G's small 1 M.G's large(>10mm) n/a Length 4.92 mtr Width 2.31 mtr Height 1.91 mtr Engine Details/Performance Max Road Speed 8 mph Max Cross Country Speed 4 mph Range Road 90 miles Range Cross Country 36 miles Fuel Type Petrol Fuel Capacity 50 gal Horse Power 70 hp Power/Weight 5 hp/tonne General Information The Inf Tank Mk I was designed in 1935, manufactured by Vickers-Armstrong and was in use from 1936 to 1940. The vehicle was powered by Ford 'V8' petrol powerplant producing 70 HP which could drive the vehicle on roads at up to 8 mph with a range of about 90 miles before refuelling. Its cross country performance was poor providing a max speed of about 4 mph and a range of about 36 miles. It was armed with 1 light machine gun , a Vickers Medium Machine Gun. The Matilda was originally designed as an Infantry support tank - so slow moving with thick armour and a single man turret with a machine gun. Armour Details Turret Front 65mm @ 0° (65mm) Side 65mm @ 0° (65mm) Rear 65mm @ 0° (65mm) Top 10mm @ 90° (10mm) Superstructure Front 60mm @ 67° (154mm) Side 60mm @ 30° (69mm) Rear 60mm @ 25° (66mm) Top 30mm @ 90° (30mm) Hull Front 60mm @ 10° (61mm) Side 60mm @ 0° (60mm) Rear 60mm @ 25° (66mm) Top 30mm @ 90° (30mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 154 mm - Minimum 30 mm Weapon Details Vickers Medium Machine Gun (Machine Gun) History The Vickers medium machine gun was designed during World War I as a replacement for the Maxim gun from which its design was taken. It served throughout World War I and II as a fixed point machine gun used to suppress areas and act as a defensive point. Manufacturer Vickers Manufactured 1912 - 1968 Calibre 7.70mm Length L/93 Rate of Fire 450 rpm Number of Rounds  4000     Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content Standard british .303 round - MkVIII (only used in Vickers Mg) (BALL Standard Small Arms) 7.70mm 0.01Kg 844M/Sec Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.14 Penetration(mm@30°) 2 Penetration(mm@0°) 3 Hit Probability(%) 98

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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