I.garey No he was a Nav/Rad as they were called, known in their trade as a 'blip basher' for following the blips on the screen!
The mention of Little Rissington puts this into his history. Post war, his pilot stayed in (went up to Air Commodore) and was based at Rissington in the early 50s. We have other photographs of the two families there in July 1952. So this would have been something my father saw when visiting his old chum who was senior at the training station at the time.
Many thanks all round.