- Period:
- Second World War (1939-1945)
- Rank:
- Acting Wing Commander
- Unit:
- No. 90 Squadron, Royal Air Force
- Awarded on:
- February 15th, 1944
"This officer has participated in many sorties, involving attacks on targets in the Ruhr and many other important centres. He has displayed great skill throughout and, although his aircraft has been hit by anti-aircraft fire on several occasions, Wing Commander Wynne-Powell has invariably pressed home Lis attacks with great determination. By his personal example of courage and resolution this officer has contributed materially to the high standard of morale of the squadron he commands."