sentences:  In 1956 SAC got out of the fighter business and the 506th was reassigned to Tactical Air Command on 1 July 1957.Under TAC, the wing was redesignated as the 506th Fighter-Day Wing and was re-equipped with new F-100D Super Sabres.From 1957 to 1958 the 506th participated in tactical exercises and rotated squadrons to Europe.