My father joined as a WOP/AG in 1941. Post training he was a Sergeant and posted to a Wellington squadron. By the end of the war he was a Wing Commander pilot. He said it was because he was good looking ! He really didn't like talking about the period, looked uncomfortable. I suspect the massive personnel losses aided his transition to pilot and promotion. He went on to work for BOAC until he took early retirement upon the merger of BOAC and BEA, then took part time jobs that interested him until his premature death.
212man may not recall me leaving for 2 weeks during our conversion course to bury him and sort out his affairs.
NEO