The Boeing 707 is an American, long-range, narrow-body airliner, the first jetliner developed and produced by Boeing Commercial Airplanes. Developed from the Boeing 367-80 prototype first flown in 1954, the initial 707-120 first flew on December 20, 1957. Pan American World Airways began regular 707 service on October 26, 1958. With versions produced until 1979, the 707 was a swept wing, quadjet with podded engines. Its larger fuselage cross-section allowed six-abreast economy seating, retained in the later 720, 727, 737, and 757 models.
Although it was not the first commercial jetliner in service, the 707 was the first to be widespread and is often credited with beginning the Jet Age. It dominated passenger air transport in the 1960s, and remained common through the 1970s, on domestic, transcontinental, and transatlantic flights, as well as cargo and military applications. It established Boeing as a dominant airliner manufacturer with its 7x7 series.
The VC-137 variant of the Stratoliner was a special-purpose design meant to serve as Air Force One, the secure transport for the President of the United States. These models were in operational use from 1962 to 1990. The first presidential jet aircraft, a VC-137B designated SAM 970, is on display at the Museum of Flight in Seattle. Two VC-137C aircraft are on display with SAM 26000 at the National Museum of the United States Air Force near Dayton, Ohio and SAM 27000 at the Ronald Reagan Presidential Library in Simi Valley, California.
Boeing 717 was the company designation for the C-135 Stratolifter and KC-135 Stratotanker derivatives of the 367-80. (The 717 designation was later reused in renaming the McDonnell Douglas MD-95 to Boeing 717 after the company merged with Boeing.