U.S. NAVAL AVIATION RESOURCE CENTER > TRANSPORT/CARGO AIRCRAFT > PREVIOUS PAGE Douglas R5D An R5D Skymaster of Transport Squadron (VR) 1 pictured at Camp Pendleton, California, during a March 1952 visit to the base by the Commandant of the Marine Corps, General Lemuel C. Shepherd. [Source: U.S. Navy Photo] The Douglas C-54 began service with the US Army Air Forces in 1942. The U.S. Navy also acquired the type, under the designation R5D. The C-54 was one of the most commonly used long-range transports by the U.S. armed forces in World War II. Sources: Wikipedia U.S. NAVAL AVIATION RESOURCE CENTER > TRANSPORT/CARGO AIRCRAFT > PREVIOUS PAGE