Pr00ne,
Thank you. Now I've got a possible clue, I'll see what happens to be lying about the archives (assuming no weeding, flood damage, retained for xx years, etc, etc).
'Claymore' would fit in with the documents on the F-111 , since there were references in the early stages of the intended procurement of that aircraft to the possible use of 'Rapier' but this was rejected as it had been 'reserved' for a missile system (I wonder which that could have been
?) . What didn't make sense to me at the time of looking at that was the appearance of that name in amongst birds of prey (and 27 Aboriginal names). Evidently, their airships moved from weapons to birds of prey for the proposed name for the F-111.
At least they didn't try to call the thing the Harrogate B.1 (which was the fate that could've befallen the F-111!)