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).