The575th Air Defense Group is a disbandedUnited States Air Force organization. Its last assignment was with the4708th Air Defense Wing atSelfridge Air Force Base, Michigan, where it was inactivated in August 1955. Thegroup was originally activated as the575th Air Service Group, a support unit for the4th Fighter Group after the 4th returned to the United States at the end ofWorld War II and performed that mission until it was inactivated in 1947.
The group was activated once again in 1952 as the575th Air Base Group to replace the support elements of the inactivating56th Fighter-Interceptor Wing. A year laterAir Defense Command established it as an operational headquarters forfighter-interceptor squadrons as well. It was replaced in 1955 when ADC transferred its mission, equipment, and personnel to the1st Fighter Group in a project that replaced air defense groups commanding fighter squadrons with fighter groups with distinguished records during World War II.
Thegroup was activated in 1946 as the575th Air Service Group to support the4th Fighter Group[1] atSelfridge Field, Michigan. Its 1044th Air Engineering Squadron provided maintenance that was beyond the capability of the fighter group, its 1054th Air Materiel Squadron handled all supply matters, and its Headquarters & Base Services Squadron provided other support.[2] The group moved toAndrews Field, Maryland, where it was inactivated in August 1947 and its personnel and equipment were transferred to the 4th Airdrome Group, which assumed its mission under the experimentalWing/Base reorganization.[3] It was disbanded in October 1948.[4]
The group was reconstituted, redesignated as the575th Air Base Group, and activated at Selfridge in 1952[5] in a major reorganization ofAir Defense Command (ADC) responding to ADC's difficulty under the existing wing base organizational structure in deploying fighter squadrons to best advantage.[6] It replaced the 56th Air Base Group as the USAF host unit for Selfridge. The group was assigned sevensquadrons to perform its support responsibilities.[7][8][9][10][11] It also maintained aircraft stationed at Selfridge.[12]
The group was redesignated as the575th Air Defense Group in 1953[5] and assumed responsibility for air defense of the upper Great Lakes area.[citation needed] It was assigned the56th Fighter-Interceptor Squadron (FIS), flying single seatNorth American F-86 Sabre aircraft,[13] the61st FIS, flying two-seatLockheed F-94 Starfire aircraft, armed with 20mm cannon,[14] and the431st FIS, flyingWorld War II eraNorth American F-51 Mustang aircraft[15] from the4708th Defense Wing as its operational elements.[16][17][18] The three squadrons were already stationed at Selfridge.[16][17][18] In May 1953, the 431st FIS converted to Sabres[15] and the following month moved to Libya and was assigned away from the group.[18] Meanwhile, in April 1953, the13th Fighter-Interceptor Squadron, flying a newerradar equipped andMighty Mouse rocket armed model of the F-86 aircraft[19] was activated as a fourth operational squadron.[20] In July the 56th FIS upgraded to newer radar equipped "Sabres,"[14] so that when the 61st FIS moved to Newfoundland and was transferred out of the group in August,[17] all squadrons of the 575th were flying the same aircraft, the F-86D, for the first time. In September, the group's medical squadron responsibility expanded when the nearby Percy Jones Army Hospital closed.[21]
The group was inactivated[5] and replaced by1st Fighter Group (Air Defense) in 1955[22] as part ofAir Defense Command's Project Arrow, which was designed to bring back on the active list the fighter units which had compiled memorable records in the two world wars.[23] It was disbanded again in 1984.[24]
^On 1 November 1952 the172d Fighter-Interceptor Squadron was returned to the control of theMichigan Air National Guard. Its F-51s were transferred to the newly-activated 431st Fighter-Interceptor Squadron, which continued to fly them until converting to Sabres in May 1953
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)
Coleman, John M (1950).The Development of Tactical Services in the Army Air Forces. New York, NY: Columbia University Press.
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United States
United States Air Force
This article incorporatespublic domain material from the Air Force Historical Research Agency
Strategic Air Command (SAC)
