The BT-7A was a medium tank used by the russians between 1936 and 1945. The vehicle was manned by a crew of 3 and was 2.46 metres wide, 5.74 metres long, 2.31 metres high and weighed 13.8 tonnes. Powered by a 450hp petrol engine the BT-7A was capable of a road speed of 45mph and a cross country speed of 33mph. The 174 gallon fuel capacity gave the BT-7A a road range of 310 miles and a cross country range of 220 miles. Based on the bt chassis, the vehicle was armed with 2 light machine guns, a 76.2mm Regimental Gun M27 L/16 with a muzzle velocity of 387m/sec which was capable of penetrating 41mm of armour at 800metres

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