This is the only VC-54C built, 42-107451, the first dedicated presidential aircraft. It had the fuselage of a C-54A with the wings of a C-54B for extra fuel capacity. Known as "Sacred Cow' in view of its highly sensitive security profile, for President Roosevelt's only flight aboard it to the Yalta Conference in February 1945, it was marked with false serial 42-72252 belonging to a C-54 which had been lost in the Pacific. Roosevelt's successor, Harry S. Truman signed the 1947 National Security Act aboard, creating the USAF. Retired from regular transport work in 1961, it went to the USAFM 1983

1944: Constructed as a VC-54C using a C-54A fuselage mated to modified C-54B wings. VIP interior included an elevator at the rear of the aircraft for President Roosevelt and his wheel chair. It also had bullet-proof picture windows. By Jun 44: TOS USAAF, assigned to the 503rd Army Air Force Base Unit, Bolling Field, DC. 21 Jan 45: Departed Washington, DC for its participation in movement of personnel for the Yalta Conference. For security reasons, it was marked with a serial number of a C-54 which was lost in the Pacific (42-72252).

Built as VC-54C USAAF s/n 42-107451. This was the first a/c outfitted for presidential use. It was used once by Franklin Roosevelt, that being his flight to Yalta and back in 1945. On that flight it was marked with a false serial number on the vertical fin. The a/c has been restored to the markings for that flight. Later used by President Harry Truman from 1945 through 1947 when it was replaced by a VC-118. This photo was taken in the old presidential a/c hangar (the a/c were wedged in, not good for photography!). Now on display in the new Presidential Gallery in the main museum.