 Military Airlift Command (MAC) operated the 625th Military Airlift Support Squadron at Torrejón to function as a major terminal for MAC transatlantic flights.In 1970 the 401st TFW upgraded to the McDonnell Douglas F-4E Phantom II.In September 1973, an equipment change to the F-4C model took place, then in 1979 to the F-4D.