Excuse me interrupting - but - the GR1/3 was supersonic!
Memory cells are once again activated. Towards the end of '75, the Belize alert state was for the first time relaxed enough to permit A Flt of 1(F) Sqn to venture out on a cayes trip. The idyllic tranquility of the tiny tropical island (Goff's or English Caye?) was disturbed by the efforts of a certain B Flt pilot showing that he was still at work, and how fast the jet could go. Now who was that ......? Was he called Boomer, or something like that? Fortunately, there was at that time no building with glass windows there.