United States
Medium M4A2 76mm (Sherman IIIA)

Tweet The Medium M4A2 76mm was designed in 1944 based on the existing fully tracked Sherman and was in use from 1944 to 1980. General Details Specifications Operational Date(s) 1944 - 1980 Quantity Produced 2915 Weight 32 tonne Crew 5 M.G's small 3 M.G's large(>10mm) n/a Length 6.25 mtr Width 2.71 mtr Height 3.00 mtr Engine Details/Performance Max Road Speed 29 mph Max Cross Country Speed 18 mph Range Road 150 miles Range Cross Country 60 miles Fuel Type Diesel Fuel Capacity 148 gal Horse Power 375 hp Power/Weight 11 hp/tonne General Information The Medium M4A2 76mm was designed in 1944 based on the existing fully tracked Sherman and was in use from 1944 to 1980. The vehicle was powered by GMC '6046' diesel powerplant producing 375 HP which could drive the vehicle on roads at up to 29 mph with a range of about 150 miles before refuelling. Its cross country performance was good providing a max speed of about 18 mph and a range of about 60 miles. It was armed with 3 light machine guns which were 0.3 inch Browning Machine Gun M1919A4s. Its main armament consisted of a 76mm Gun M1 L/55 which could penetrate 149 mm of flat plate at 100 metres The Sherman IIIA M4A2 76 was a similar shape to the M4 but had a welded hull and was powered by twin General Motors diesel engines. The cast turret carrying the gyro stabilised 76mm Gun M1A1C was the same as that of the Sherman IA. As with the earlier Sherman IA the drive sprocket was at the front, the track went under 3 double bogie wheels onto the idler, then back over 3 return rollers. Armour Details Turret Front 65mm @ 0° (65mm) Side 65mm @ 0° (65mm) Rear 65mm @ 0° (65mm) Top 25mm @ 90° (25mm) Superstructure Front 65mm @ 45° (92mm) Side 50mm @ 0° (50mm) Rear 38mm @ 0° (38mm) Top 19mm @ 90° (19mm) Hull Front 40mm @ 45° (57mm) Side 40mm @ 0° (40mm) Rear 38mm @ 0° (38mm) Top 14mm @ 90° (14mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 92 mm - Minimum 14 mm Weapon Details 0.3 inch Browning Machine Gun M1919A4 (Machine Gun) x 2 Manufacturer Browning Manufactured 1919 - 1945 Calibre 7.60mm Length L/80 Rate of Fire 480 rpm Number of Rounds  6000     Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content .30-06 Springfield (BALL Standard Small Arms) 7.62mm 0.012Kg 820M/Sec Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.15 Penetration(mm@30°) 2 Penetration(mm@0°) 3 Hit Probability(%) 98 Weapon Details 76mm Gun M1 L/55 Calibre 76.20mm Length L/55 Number of Rounds  72     Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content AP (AP Armor Piercing) 76.20mm 6.8Kg 792M/Sec Quoted Penetration 88mm@1000m 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@30°) 129 119 109 96 84 72 62 52 Penetration(mm@0°) 149 138 126 111 97 84 72 61 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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