The DUKW was a rugged amphibious truck that changed military logistics and civilian tourism.

Wars & Conflicts · Published 15 October 2026 Swipe more like this →

In short: Developed to solve the critical problem of resupplying troops after amphibious landings, the DUKW became an iconic World War II workhorse. This six-wheel-drive vehicle could transition seamlessly from land to water, eventually finding a second life as a popular tourist craft and a reliable tool for emergency rescue operations.

The DUKW was born from a partnership between yacht designers Sparkman & Stephens and the General Motors Corporation. Its development was led by Rod Stephens Jr., Dennis Puleston, and Frank W. Speir under the auspices of the National Defense Research Committee. Although initially rejected by the armed services, the vehicle proved its worth during a dramatic rescue of seven Coast Guardsmen near Provincetown, Massachusetts, where it navigated heavy surf and 60-knot winds that defeated conventional craft. By the time production ended in 1945, 21,147 units had been manufactured.

Technically, the DUKW was a modified GMC CCKW truck featuring a watertight steel hull and a propeller. It was the first vehicle to allow drivers to adjust tire pressure from inside the cab, a feature that significantly improved its performance on soft surfaces like beach sand. Despite its utility, the vehicle was not armored; it relied on thin sheet steel to minimize weight and a high-capacity bilge pump to stay afloat if breached. It could reach speeds of 50 mph on land and 5.5 knots in the water.

The DUKW saw extensive service in both the European and Pacific theaters, participating in major operations including the invasion of Normandy and the Battle of Pusan Perimeter in the Korean War. After the war, many were repurposed for civilian use, from oceanographic research to lighthouse supply missions in Antarctica. Today, the DUKW is perhaps best known for its role in 'duck tours' in cities worldwide, a tradition that began in 1946 in Wisconsin Dells, Wisconsin. While the vehicle was designed for the temporary demands of combat, its engineering versatility ensured it remained in various forms of service for decades.

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