GMC Dukw-353 Duck Basically a standard GMC 2.5 ton (2,268 kg) 6 x 6 GMC truck, the amphibious Duck was one of the Allies most useful transport vehicles of the war. Produced in vast numbers (21,147 by mid-1945), the Duck was to be found ferrying cargo to beach heads throughout Europe and the Pacific. The vehicle also played a part in major river crossing operations, most notably that of the Rhine during the final push into Germany at the end of the European War. GMC Dukw-353 Duck TYPE: Amphibious cargo/personnel truck ENGINE: One 104 bhp GMC 270 six cylinders, water-cooled petrol engine. Transmission modified to accommodate an in water propeller. DIMENSIONS: Length 31 ft (9.45 m) Width 8 ft 3 in (2.52 m) Height (with hood deployed) 8 ft 10 in (2.69 m) WEIGHT: Empty 15,080 lb (6,840 kg) ARMAMENT: Mounting for one 0.5 in Browning machine gun sometimes fitted.