Unbuilt F-100s

Last revised November 27, 1999

The production history of the Super Sabre came to an end when the last F-100F two-seater was delivered. However, there were several other Super Sabre variants subsequent to the F-100F which were the subject of serious design studies but which never saw the light of day.

F-100G, H

For some odd reason, the designation F-100G and F-100H were never assigned.


The F-100J (probably J for Japan) was the designation given to a projected, but unbuilt all-weather interceptor version offered to Japan through the Foreign Military Sales program. The Japanese government expressed no interest, and the project proceeded no further than the concept stage.


F-100K was to have been a version of the two-seat F-100F in which the J57-P-21A was replaced by the J57-P-55. This version was never built.


F-100L was to have been the designation of an equivalent J57-P-55-powered version of the single-seat F-100D. This version was never built either.


The designation F-100M was never assigned.


The F-100N (probably N for NATO) was to have been a "stripped" version of the F-100D with simplified electronics that would be offered to the air forces of NATO nations. It attracted little interest and was not proceeded with.


The designations F-100P,Q, and R were never assigned.


The F-100S (probably S for Spey) was a 1964 proposal for a F-100F airframe powered by a Rolls-Royce RB.168-25R Spey turbofan. North American had hoped to establish a production line in France for two hundred examples of the F-100S, but nothing ever came of the idea, and no F-100S was ever built.


  1. North American F-100 Super Sabre, David A. Anderton, Osprey, 1987

  2. The North American F-100 Super Sabre, Ray Wagner, Aircraft in Profile, 1965.

  3. United States Military Aircraft Since 1909, Gordon Swanborough and Peter M. Bowers, Smithsonian, 1989.

  4. The American Fighter, Enzo Angelucci and Peter Bowers, Orion, 1987