I was thinking that maybe the F-111 had too many development problems and never panned out beyond prototype stage so when the RAF cancelled F-111K the USAF cancelled theirs too and went for (a jointly developed?) TSR 2 Thunderstrike instead.
Hence we get the USAF/USN/USMC versions too.
As F-111 was already being used (and the Aardvark was a strike aircraft/bomber despite the F- designation) would they have stuck to the sequence and used F-112?
BTW - Ian, as part of your update do you think you could do a nation specific Iranian version with these skins and the Iranian weapons you were working on? Sundowner did the skins and they would look great in a what-if Operation Darius mod.
http://combatace.com/files/file/10853-bac-tsr2-imperial-iranian-air-force/
http://combatace.com/topic/55117-bac-tsr2-islamic-republic-of-iran-air-force/
http://combatace.com/files/file/10855-bac-tsr2-islamic-republic-of-iran-air-force-grey-scheme/