Royal Air Force - 10 C-54Ds transferred from USAF under lend-lease in 1945 and returned in 1946. One special fitted C-54B for the use by Winston Churchill transferred in 1944 and returned in 1945. No. 232 Squadron RAF No. 246 Squadron RAF Metropolitan Communications Squadron United States Army Air Forces US Air Force - Douglas C-54 United States Navy - Douglas R5D US Marine Corps - R5D US Coast Guard - R5D Venezuelan Air Force - One C-54A 1949-1955. See also Aviation Traders Carvair References Notes Bibliography Blewett, R. Survivors. Coulsden, UK: Aviation Classics, 2007. . Pearcy, Arthur. Douglas Propliners: DC-1–DC-7. Shrewsbury, UK: Airlife Publishing, 1995. . Pickler, Ron and Larry Milberry. Canadair: The First 50 Years. Toronto: CANAV Books, 1995. . Milberry, Larry. The Canadair North Star''. Toronto: CANAV Books, 1982. . The PSA History/Oldtimers Page External links Canadair DC4M North Star Moose Jaw crash at virtualmuseum.ca Berlin Airlift Historical Foundation - Operates C-54 "Spirit of Freedom" as flying Berlin Airlift Museum Air Force Association page on C-54 Air Force Museum page on the VC-54C Warbird Alley: C-54 page Cockpit View of C-54 During Landing/Taxi Boeing McDonnell Douglas page on DC-4 The last passenger certified & built DC-4s in the world Vintage Wings of Canada Canadair North Star showing RR Merlin installation Loading Santa Fe Skyways DC-4 refrigerated cargo aircraft. Santa Fe Skyways reconverted DC-4 refrigerated cargo aircraft. Composite photograph of Santa Fe Skyway Inc. DC-4. Operators DC-4