What is Boeing 747SP?
{|{{Infobox aircraft begin | name = Boeing 747SP | image = File:N347SP Pan American World Airways Boeing 747SP inflight.jpg | caption = Boeing 747SP of launch customer [[Pan Am]] }}{{Infobox aircraft type | type = Wide-body [[jet airliner]] | national origin = United States | manufacturer = [[Boeing]] Airplane Company | designer = | first flight = July 4, 1975 | introduced = 1976 with Pan Am | retired = | status = In limited service<!--See Produced field for production status --> | primary user = [[Pan Am]] (historical) | more users = [[United Airlines]] (historical) <br /> [[South African Airways]] (historical) <br />[[Iran Air]] (historical) | produced = 1976–1982, 1987–1989 | number built = 45<ref>{{Cite web |title=747 Model Summary |url=http://active.boeing.com/commercial/orders/displaystandardreport.cfm?cboCurrentModel=747&optReportType=AllModels&cboAllModel=747&ViewReportF=View+Report |url-status=deviated |archive-url=https://web.archive.org/web/20180928195003/http://active.boeing.com/commercial/orders/displaystandardreport.cfm?cboCurrentModel=747&optReportType=AllModels&cboAllModel=747&ViewReportF=View+Report |archive-date=September 28, 2018 |access-date=December 29, 2010 |publisher=Boeing |archivedate=September 28, 2018 |archiveurl=https://web.archive.org/web/20180928195003/http://active.boeing.com/commercial/orders/displaystandardreport.cfm?cboCurrentModel=747&optReportType=AllModels&cboAllModel=747&ViewReportF=View+Report }}</ref> | developed from = Boeing 747-100 | variants with their own articles = Stratospheric Observatory for Infrared Astronomy - SOFIA }} |} [[File:Boeing 747SP-21 AN0355463.jpg|thumb|A Boeing 747SP]] The '''Boeing 747SP''' is a [[jet airliner]], a variant of the [[Boeing 747]]. Compared to the original 747, the 747SP has a shortened fuselage. Because of this, it can carry fewer passengers but is able to fly longer distances. The 747SP first flew in 1975 and entered service in 1976. A total of 45 747SPs was built until 1987. [[File:United Boeing 747SP Maiwald.jpg|thumb|A 747 SP in