The Sherman M4 was an American tank used during the Second World War. Many varieties were made, but the most common was the M4A3 which weighed 31.57 tonnes and had a crew of five. It was fairly thickly armoured, up to 108 mm and had a 76 mm gun plus a coaxial 7.62 mm machine-gun in a fully traversing turret and an extra ball mounted machine-gun in the hull front. As with the M3 Lee an additional machine-gun was usually fitted to the commander's cupola. The M4A3 was powered by a Ford 450bhp V8 engine which gave it a top speed of 26 mph and a range of 160 km. Research Sherman M4