The earliest kit of the F-111 I remember was the Revell kit of the F-111B (as in Bravo). At the time of the F-111 development the Government had a requirement that all air craft be usable by all of the services, that is the USN, USMC, and USAF, e.g. the F-4. The F-111 B was the Navy version. As it turned out the aircraft was to heavy and to large for carrier operations. The project was the TFX project and it was the first operational variable geometry (swing wing) aircraft to go into production. The aircraft has a lot of "NEW" technology incorporated into it and it went through a lot of developmental growing pains, e.g. the swing wing, crew ejection capsual, ground folowing radar, and a lot more. It survived several attempts by Congress to scrap the project and history has proven the aircraft a great success. I look forward to your build.