Back to Raasch - Reader123 asks a valid question in post 299
"Apologies if I'm barking up the wrong tree, but could a Spitfire pilot (2nd Lt) who was in the habit of pranging his crate be relieved of his pilot duties to become a bombardier? Would you normally expect a bombardier to be commissioned? "
Or if he received a minor injury in a crash which made him unfit as pilot but OK as bombardier???