At the end of 1951, the activated units at Reading and Philadelphia returned to Pennsylvania control. The F-47s were retired and the squadrons re-equipped with F-51H Mustangs, due to the lack of jets which were being used in Korea. After the Korean War ended, originally it was planned to convert the 146th FBS from its propeller-driven F-51Hs to F-86A Sabre jet interceptors, but after receiving four Sabres, the squadron began to receive new F-84F Thunderstreaks in October 1954. The 147th switched from its F-51Hs to F-84Fs in July 1955.