Its main deck doors are reduced to four on each side to compensate for its lower capacity. The SP is 47 ft (14 m) shorter than all other 747 variants. The variant first flew on July 4, 1975, was approved by the Federal Aviation Administration on February 4, 1976, and entered service that year with Pan Am. Pan Am requested a 747-100 derivative to fly between New York and the Middle East, a request also shared by Iran Air, and the first order came from Pan Am in 1973. The Boeing 747SP (for Special Performance) is a shortened version of the Boeing 747 widebody airliner, designed for a longer range.īoeing needed a smaller aircraft to compete with the McDonnell Douglas DC-10 and Lockheed L-1011 TriStar trijet widebodies, introduced in 1971/1972. In limited service as governmental, charter or VIP aircraft, one in service as SOFIA.
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