He then received conversion training to the then new Messerschmitt Me 262 jet fighter .
He then was posted to Jagdgeschwader 7 ( JG 7 -- 7th Fighter Wing ) , an all - jet fighter wing .
He then received conversion training to the then new Messerschmitt Me 262 jet fighter and was posted to Jagdgeschwader 7 ( JG 7 -- 7th Fighter Wing ) , an all - jet fighter wing .