6960th CLG, 1950s (Source: Günter Oswald) A DUKW of a CLG unit reaches the right bank of the Rhine River at the Bridge Site Brühl. The full nomenclature for the DUKW was "AMPHIBIAN TRUCK, 2 ½-TON, 6X6." DUKW is an acronym signifying "D", model year 1942, "U", amphibian, "K", all wheel drive, "W", dual rear axles.