3 inch Gun Motor Carriage M10 General Details Specifications Manufacture Date(s) 1942 Quantity Produced 3580 Weight unknown Crew 5 M.G's small 0 M.G's large(>10mm) 1 Length 6.03 mtr Width 3.08 mtr Height 2.49 mtr Engine Details/Performance Max Road Speed 30 mph Max Cross Country Speed 20 mph Range Road 200 miles Range Cross Country 0 miles Fuel Type Diesel Fuel Capacity 164 gal Horse Power 375 hp Power/Weight unknown General Information The M10 was based on a modified Sherman Hull with thinner armour and a more powerful gun, the power was supplied by twin 172HP Detroit Diesel engines that could be uncoupled and the vehicle moved using only one in case of engine damage or failure. The turret was manually rotated, so was not as fast to rotate as other models. Initially there was no provision for indirect fire, but this was resolved in later models and retrofitted. Armour Details Turret Front 60mm@45°(85mm) Side 25mm@45°(35mm) Rear 25mm@45°(35mm) Top 0mm@0° n/a Superstructure Front 37mm@45°(52mm) Side 25mm@45°(35mm) Rear 30mm@0°(30mm) Top 20mm@90°(20 mm) Hull Front 37mm@45°(52mm) Side 25mm@45°(35mm) Rear 30mm@0°(30mm) Top 20mm@90°(20 mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 85 mm - Minimum 20 mm Weapon Details 0.5 inch Browning Machine Gun M2 Calibre 12.70mm Rate of Fire 480rpm Rounds Carried  300   Ammunition Details Name/Id Calibre Weight MVelocity Quoted Penetration   MG(MG) 12.70mm 0.04Kg   884M/Sec 22mm@100m Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.28 0.67 2.46 Penetration(mm) 22 20 16 8 Hit Probability(%) 98 98 98 48 3 in Gun M7 L/53 Calibre 76.20mm Length L/53 Rounds Carried  54   AP(AP) 76.20mm 7Kg   792M/Sec 84mm@2000m Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.26 0.53 1.13 1.8 2.56 3.42 4.42 Penetration(mm) 104 103 100 95 89 84 78 72 Hit Probability(%) 98 98 98 96 77 44 25 15

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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