Spencer Flack's FB11 G-FURY went in at Waddington on 2 Aug 81. Engine seized in transit after a long delay before take-off following a display at Humberside. The term '5-bladed airbrake' was mentioned.
As SATCO I was an early attender on the scene [I beat the Crash Ambulance!] and helped Spencer on to a stretcher. I also occupied an adjacent room at RAFH Norton Hall during his stay there for an unrelated reason, and chatted briefly.