Interesting? I know that the CFS echelon moved from Cranwell to Leeming in September 1977 and that a later attempt to rename the flying element of RAF College came about on 1 February 1989 when it became 3FTS. I think that the latter was part of the command's re-organization of current flying training units but doesn't clarify why it was decided to temporarily adopt the "BFTS" title in 1978 - or was the "B" an administrative 'slip of the pen'?