North American Aviation explored FSW technology as a way to prolong the usefulness of its famed P-51 Mustang fighter design, even as more traditional
jet fighters were on the horizon. A postwar notion from North American
was a tricycle-gear, FSW variant of the Mustang, riding behind a powerful latemodel Allison liquid-cooled V-1710-G6R, and augmented with an aft ventral Westinghouse 19XB-28 jet engine. It remained an unbuilt dream machine.1
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Frederick A. Johnsen, North American P-51 Mustang, Warbird Tech,
vol. 5 (North Branch, MN: Specialty Press, 1996).
