Medium M4A3 76mm General Details Specifications Manufacture Date(s) 1944 Quantity Produced 3071 Weight unknown Crew 5 M.G's small 3 M.G's large(>10mm) 0 Length 6.25 mtr Width 2.71 mtr Height 3.00 mtr Engine Details/Performance Max Road Speed 26 mph Max Cross Country Speed 17 mph Range Road 130 miles Range Cross Country 0 miles Fuel Type Petrol Fuel Capacity 168 gal Horse Power 500 hp Power/Weight unknown General Information The Sherman IVA M4A3 was a similar shape to the M4 but had a welded hull and was powered by a Ford GAA-III engine producing 500HP. The cast turret carrying the gyro stabilised 75mm Gun M3 was the same as that of the Sherman I. As with the earlier Sherman I the drive sprocket was at the front, the track went under 3 double bogie wheels onto the idler, then back over 3 return rollers. All of the 75mm armed version of this tank had glycol filled ammunition racks which were known as wet stowage they were designated as M4A3W Armour Details Turret Front 65mm@0°(65mm) Side 65mm@0°(65mm) Rear 65mm@0°(65mm) Top 25mm@90°(25 mm) Superstructure Front 65mm@45°(92mm) Side 50mm@0°(50mm) Rear 38mm@0°(38mm) Top 19mm@90°(19 mm) Hull Front 40mm@45°(57mm) Side 40mm@0°(40mm) Rear 38mm@0°(38mm) Top 14mm@90°(14 mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 65 mm - Minimum 14 mm Weapon Details 76mm Gun M1 L/55 Calibre 76.20mm Length L/55   Ammunition Details Name/Id Calibre Weight MVelocity Quoted Penetration   AP(AP) 76.20mm 6.8Kg   792M/Sec 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) 101 100 97 92 87 81 76 70 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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