The 15cm s.I.G 33 Gw II(A,B,C,F) (long chassis) was a self propelled artillery vehicle , 11 of which were used by the germans between 1941 and 1945. The vehicle was manned by a crew of 4 and was 2.6 metres wide, 5.41 metres long, 1.9 metres high and weighed 11.2 tonnes. Powered by a 140hp petrol engine the 15cm s.I.G 33 Gw II(A,B,C,F) (long chassis) was capable of a road speed of 25mph and a cross country speed of 12mph. The 15cm s.I.G 33 Gw II(A,B,C,F) (long chassis) had a road range of 100 miles Based on the pzkpfw ii chassis, the vehicle was armed with 1 light machine gun, a 15cm sIG33 L/11 with a muzzle velocity of 280m/sec which was capable of penetrating 40mm of armour at 800metres