The airport was again used by the U.S. Air Force in 1951 and renamed Palm Beach Air Force Base under the control of the Military Air Transport Service (MATS). USAF operations occupied the north half of the airfield while civil operations and the airline terminal used the south half. MATS used the base for training with the host unit being the 1707th Air Transport Wing (Heavy), and its 1740th Heavy Transport Training Unit. The 1707 ATW was known as the "University of MATS", becoming the primary USAF training unit for all Air Force personnel supporting and flying heavy transport aircraft. These included C-124 Globemaster II, C-118 Liftmaster, C-97 Stratofreighter, and C-54 Skymaster maintenance training along with aircrew and transition pilot training. Nearly 23,000 airmen trained at Palm Beach AFB during the Korean War.