The
General Dynamics/Grumman F-111B was a long-range
carrier-based interceptor aircraft that was planned to be a follow-on to the
F-4 Phantom II. The F-111B was developed in the 1960s by
General Dynamics in conjunction with
Grumman for the
United States Navy (USN) as part of the joint Tactical Fighter Experimental (TFX) with the
United States Air Force (USAF) to produce a common fighter for the services that could perform a variety of missions. It incorporated innovations such as variable-geometry wings, afterburning turbofan engines, and a long-range radar and missile weapons system.