“Transponders are already so well established there is no possibility of FLARM becoming a widespread alternative.”
Do you think so? In aircraft which typically fly around below 5000ft VFR? I would have thought Transponders the exception. The Micros, LAA, Gliders etc have much bigger numbers and are mostly not Transponder equipped. The CAA tried to force Transponders on them and failed, this is a much better alternative, and you could of course have both in your IFR wonder ship…
Rod1