Military rank List view Sqn Ldr Michael Randrup Military rank Airforce Date Plt Off. Pilot Officer (on probation) RAF Royal Air Force 04.09.1940 Plt Off. Pilot Officer RAF Royal Air Force 04.09.1941 Fg Off. Flying Officer RAF Royal Air Force 04.09.1941 Flt Lt Flight Lieutenant RAF Royal Air Force 04.09.1942 Sqn Ldr Squadron Leader RAF Royal Air Force 07.04.1958