A couple of Captains of the Queen's Flight would surely win the oldest aircrew actively flying at that time - they were on the crew list, on the imprest, Gen Decs, etc. They didn't actually fly the aircraft, but...they were the most fantastic people to converse with, and an absolute advertisement for the RAF.
Sir Archie Winskill flew Spits in the BoB, 603 Sqn, I believe...retired 1980's
Sir John Severne joined 1949 (??) retired 1989.
One Andover pilot retired aged 60, with the aircraft. Another top chap.
