The Medium M4A3 (Sherman IVB) 105mm was a medium tank , 3039 of which were used by the americans between 1944 and 1945. The vehicle was manned by a crew of 5 and was 2.63 metres wide, 5.95 metres long, 2.84 metres high and weighed 31.14 tonnes. Powered by a 450hp petrol engine the Medium M4A3 (Sherman IVB) 105mm was capable of a road speed of 26mph and a cross country speed of 15mph. The 168 gallon fuel capacity gave the Medium M4A3 (Sherman IVB) 105mm a road range of 130 miles Based on the sherman chassis, the vehicle was armed with 3 light machine guns, a 105mm Howitzer M3A1 L/18 with a muzzle velocity of 310m/sec which was capable of penetrating 43mm of armour at 800metres

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