How interesting! My father was a flying instructor during WW2 and spent a year at Trenton in Canada on the examining wing. He always told me that more were killed in flying training at one stage than were lost in action!
He himself survived an accident flying a Miles Magister with his student when they hit a tree low flying! I got the feeling he learned a lot about flying from the accident and luckily he only came away with a broken nose which when you see the wreckage on the photograph was a miracle!