Designed in parallel with the F-111 "Aardvark" , which was adopted by the Air Force as a strike aircraft, the F-111B suffered development issues and changing Navy requirements for an aircraft with maneuverability for dogfighting . The F-111B was not ordered into production and the F-111B prototypes were used for testing before being retired. The F-111B would be replaced by the smaller and lighter Grumman F-14 Tomcat , which carried over the engines, AWG-9 / Phoenix weapons system , and similar swing-wing configuration.
The General Dynamics F-111 Aardvark was a supersonic, medium-range interdictor and tactical attack aircraft that also filled the roles of strategic nuclear bomber , aerial reconnaissance , and electronic-warfare aircraft in its various versions. Developed in the 1960s by General Dynamics , it first entered service in 1967 with the United States Air Force . The Royal Australian Air Force (RAAF) also ordered the type and began operating F-111Cs in 1973.