<P> SAM 26000 is now on display at the National Museum of the United States Air Force at Wright - Patterson AFB, Ohio . </P> <P> SAM 26000 was replaced in December 1972 by another VC - 137, Special Air Mission 27000, although SAM 26000 was kept as a backup until it was finally retired in 1998 . Richard Nixon was the first president to use SAM 27000; the newer aircraft served every president until it was replaced by two VC - 25 aircraft (SAM 28000 and 29000) in 1990 . </P> <P> After announcing his intention to resign the presidency, Nixon boarded SAM 27000 (with call sign "Air Force One") to travel to California . Colonel Ralph Albertazzie, then pilot of Air Force One, recounted that after Gerald Ford was sworn in as president, the plane had to be redesignated as SAM 27000, indicating no president was on board the aircraft . Over Jefferson City, Missouri, Albertazzie radioed: "' Kansas City, this was Air Force One . Will you change our call sign to Sierra Alpha Mike (SAM) 27000?' Back came the reply:' Roger, Sierra Alpha Mike 27000 . Good luck to the President ."' </P> <P> SAM 27000's last flight as Air Force One was on 29 August 2001 when it flew President George W. Bush from San Antonio to Waco, Texas . Following the flight, it was formally decommissioned, then flown to San Bernardino International Airport (former Norton AFB) in California . It was dismantled and taken to the Ronald Reagan Presidential Library in Simi Valley, where it was reassembled and is on permanent display . </P>

Plane with united states of america on the side