There was a Master Pilot instructor on the Hunter Sim at Chivenor in early 70's. Can't emember if he moved to Brawdy when Chivenor closed and the OCU (TWU) went there.
At end of WW2 weren't there a lot of acting NCO aircrew who reverted to their substansive ranks at war end? Former F.SGt pilots with wings and medals dressed as SAC. Apparently a lot of people thought they had been demoted due to LMF or some similar 'crime'.
