No. 501 Squadron was the 14th of the 21 flying units in the Royal Auxiliary Air Force, the volunteer reserve part of the British Royal Air Force. The squadron won seven battle honours, flying Hurricane, Spitfire and Tempest fighter aircraft during World War II, and was one of the most heavily engaged units in RAF Fighter Command. In particular, the Squadron saw extensive action during the Battle of France and Battle of Britain. At present the unit is not flying any more and has a logistics role as part of No 85 Expeditionary Logistics Wing.