The stay of the B-52s assigned to the 380th was destined to be short. In 1968, plans were initiated to bring the Air Force's newest strategic aircraft, the General Dynamics FB-111 Aardvark to Plattaburgh. The FB-111A was the all-weather strategic bombing version of the F-111, intended as an interim successor to the B-52 and Convair B-58 Hustler of Strategic Air Command. On 8 October 1969, the FB-111A entered service with the 4007th Combat Crew Training Squadron of the 340th Bomb Group at Carswell Air Force Base, Texas. Even though the FB-111A was officially declared operational, it had yet to reach the combat forces. After reaching operational capability, the 4007th relocated to Plattsburg and became part of the wing.