 The 366th Fighter Day Group was inactivated in September 1957 when parent wing adopted Tri-Deputate organization and assigned operational squadrons directly to the wing.In late 1957, the wing began conversion to the F-100 Super Sabre to its inventory while continuing to operate the F-84.Redesignated 366th Tactical Fighter Wing 1 July 1958 as part of Air Force-Wide naming change.