The4700th Air Defense Group is a discontinuedUnited States Air Force (USAF) organization. Its last assignment was with the4709th Air Defense Wing atStewart Air Force Base, New York. It was activated in 1950 as a support unit for USAF units at Stewart. In 1954, it assumed an operational mission and was assigned twointerceptor squadrons. The group was discontinued on 18 August 1955 and its personnel and equipment were transferred to the329th Fighter Group (Air Defense) as part of Project Arrow, anAir Defense Command project to replace air defense groups with fighter units with distinguished histories fromWorld War I orWorld War II.
Thegroup was organized 1 December 1950 as the4700th Air Base Group to replace the 4400th Air Base Group as the USAF host unit atStewart Air Force Base, New York in preparation for the transfer of Stewart toAir Defense Command (ADC) fromContinental Air Command (ConAC).[1][2] It was assigned threesquadrons to perform its duties as host. The 4700th was assigned toEastern Air Defense Force.[2] It transferred with Eastern Air Defense Force from ConAC to ADC upon ADC's reactivation in January 1951.[2]
The group was replaced by the329th Fighter Group in 1955[2][6] as part of ADC'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.[7]
^Aircraft is North American F-86F-25-NH Sabre, serial 51-13383. Taken in 1954. This plane was written off atClovis Air Force Base on 16 January 1955.Dirkx, Marco (9 July 2025)."1951 USAF Serial Numbers". Joe Baugher’s Serial Number List. Retrieved19 October 2025..