The FB-111B was proposed in 1979 as an improved version of the FB-111A powered by General Electric F101 turbofan engines in place of the Pratt & Whitney TF30s. The fuselage was to be lengthened to 88 feet 2 1/2 inches, and additional SRAMs were to be carried on underwing pylons. According to the proposal, 155 FB-111Bs were to have been converted from existing F-111Ds and FB-111As. However, the project was abandoned as being too costly and nothing was every produced.
Sources:
-
United States Military Aircraft Since 1909, Gordon Swanborough and
Peter M. Bowers, Smithsonian, 1989.
-
General Dynamics Aircraft and their Predecessors, John Wegg,
Naval Institute Press, 1990.
-
Post-World War II Fighters: 1945-1973, Marcelle Size Knaac,
Office of Air Force History, 1986.
- The American Fighter, Enzo Angelucci and Peter Bowers, Orion, 1987.
