Boeing 747SP

An underrated member of the 747 family, it was designed to compete with the McDonnell Douglas DC-10 and Lockheed L-1011 TriStar, introduced in 1971/1972. Pan Am wanted a 747-100 derivative to fly nonstop between New York and the Middle East, a request also shared by Iran Air, and the first order came from Pan Am in 1973. Boeing shortened a 747-100 by 14 metres by eliminating fuselage sections fire and aft. Out of all 45 airframes built, one was acquired by NASA and turned into a flying space telescope/observatory and two others were acquired by Pratt and Whitney to function as engine testbeds.
The Boeing 747SP is an intriguing member of the 747 family.
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