On 1 July 1964, the 194th began flying the F-102A Delta Dagger, a Mach 1.25 supersonic interceptor.  In January 1968, Air Defense Command was renamed Aerospace Defense Command, and continued to maintain operational responsibility. On 25 July 1974, the 194th retired the F-102 and brought the improved F-106 Delta Dart into service, continuing to fly this aircraft until 31 December 1983. On 1 October 1978 Aerospace Defense Command was inactivated, its units being reassigned to Air Defense, Tactical Air Command (ADTAC), a sub-element of Tactical Air Command (TAC), with ADTAC being established as compatible to a Numbered Air Force under TAC.  TAC later replaced the aging F-106s on 1 January 1984 with F-4D Phantom IIs for use in the air defense interceptor mission.  On 6 December 1985, ADTAC was disestablished and its role and responsibilities assumed by the reestablished First Air Force, a TAC organization which assumed operational oversight for all Air National Guard fighter units assigned to the air defense role.