 After the war years Filton again became home to No.501 Squadron RAF, which was reformed in May 1946 as a Royal Auxiliary Air Force day-fighter squadron equipped with Spitfire XVI (LF)s. These were followed in 1948 by de Havilland Vampire F1s, and the FB5 from Spring 1951.501 Squadron continued at Filton until it was disbanded in March 1957, when the remaining Royal Auxiliary Air Force flying units were stood down.