Derived from the F-111B??
I think not!
As with everything this guy writes theres some truth ... just not a lot. Cut from here.
The Navy recognized the advantages of applying the variable-sweep wing concept to multimission aircraft.<snip> Defense Secretary McNamara said the Navy's requirements should be met by the new Air Force fighter, the TFX. in the Air Force terminology. The Department of Defense selected General Dynamics to develop two versions of the TFX, the F-111A for the Air Force and the F-111B for the Navy. Roll out took place on October 15, 1964. <snip> However, the Navy canceled its portion of the program, in August 1968, having concluded the plane was too heavy for use on aircraft carriers. <snip> Following the disastrous attempt to achieve interservice aircraft commonality with the F-111, the Navy issued a request for proposals (RFP) for a new VFX fighter in July 1968. <snip> On January 14, 1969, the Navy announced the award of the contract for the VFX fighter, now designated F-14, to Grumman. --Rabid Hams 10:01, 25 November 2006 (UTC)