However, the AAF was finding that standard military units, based on relatively inflexible tables of organization, were not proving well adapted to the training mission. Accordingly, it adopted a more functional system in which each AAF base was organized into a separate numbered unit.[4] In this reorganization the squadron was disbanded in 1944 as the AAF converted to the AAF Base Unit system.[1] It was replaced, along with other units at Woodward Army Air Field, by the 267th AAF Base Unit (Combat Crew Training Station, Fighter) in a reorganization of the AAF in which all units not programmed for deployment overseas were replaced by AAF Base Units to free up manpower for assignment overseas.[5]
The 521st Group was inactivated and replaced by the 53d Fighter Group (Air Defense)[6][9] in 1955 as part of Air Defense Command's Project Arrow, which was designed to reestablish the fighter units which had compiled memorable records in the two world wars.[10] The squadron was inactivated along with the group and its equipment and personnel were transferred to the 13th Fighter-Interceptor Squadron, which was simultaneously activated.[1][11]
Lineage
Constituted as the 637th Bombardment Squadron (Dive) on 23 March 1943
Activated on 5 April 1943
Redesignated 519th Fighter-Bomber Squadron on 10 August 1943
Disbanded on 1 April 1944
Reconstituted and redesignated 519th Fighter-Interceptor Squadron on 4 November 1954
Buss, Lydus H. (ed), Sturm, Thomas A., Volan, Denys, and McMullen, Richard F., History of Continental Air Defense Command and Air Defense Command July to December 1955, Directorate of Historical Services, Air Defense Command, Ent AFB, CO, (1956)
Craven, Wesley F.; Cate, James L., eds. (1955). The Army Air Forces in World War II. Vol. VI, Men & Planes. Chicago, Illinois: University of Chicago Press. LCCN48003657. OCLC704158.
Goss, William A. (1955). "The Organization and its Responsibilities, Chapter 2 The AAF". In Craven, Wesley F.; Cate, James L. (eds.). The Army Air Forces in World War II(PDF). Vol. VI, Men & Planes. Chicago, IL: University of Chicago Press. LCCN48003657. OCLC704158. Retrieved 17 December 2016.