Britain Rolls-Royce Armoured Car

Tweet The Rolls-Royce Armoured Car was designed in 1914, manufactured by Rolls Royce based on the existing 4 x 2 drive Commercial Car and was in use from 1915 to 1944. General Details Specifications Operational Date(s) 1915 - 1944 Quantity Produced 120 Weight 4.7 tonne Crew 4 M.G's small 1 M.G's large(>10mm) n/a Length 5.23 mtr Width 1.92 mtr Height 2.36 mtr Engine Details/Performance Max Road Speed 50 mph Max Cross Country Speed 10 mph Range Road 150 miles Range Cross Country 30 miles Fuel Type Petrol Fuel Capacity unknown Horse Power 80 hp Power/Weight 17 hp/tonne General Information The Rolls-Royce Armoured Car was designed in 1914, manufactured by Rolls Royce based on the existing 4 x 2 drive Commercial Car and was in use from 1915 to 1944. The vehicle was powered by Rolls Royce '6 Cylinder' petrol powerplant producing 80 HP which could drive the vehicle on roads at up to 50 mph with a range of about 150 miles before refuelling. Its cross country performance was adequate providing a max speed of about 10 mph and a range of about 30 miles. It was armed with 1 light machine gun , a Vickers Medium Machine Gun. At the start of the Second World War 76 were in service mostly in the Middle East Theatre. Armour Details Turret Front 12mm @ 0° (12mm) Side 12mm @ 0° (12mm) Rear 12mm @ 0° (12mm) Top 5mm @ 90° (5mm) Superstructure Front 12mm @ 0° (12mm) Side 12mm @ 0° (12mm) Rear 12mm @ 0° (12mm) Top 5mm @ 90° (5mm) Hull Front 12mm @ 0° (12mm) Side 12mm @ 0° (12mm) Rear 12mm @ 0° (12mm) Top 5mm @ 90° (5mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 12 mm - Minimum 5 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   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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