Air Force Plant 4

Air Force Plant 4 is a government-owned, contractor-operated aerospace facility in Fort Worth, Texas, currently owned by the U.S. Air Force and operated by Lockheed Martin Aeronautics. It is home of the F-16 and F-35 fighter aircraft. Military aircraft have been manufactured here since 1942. Plant 4 is adjacent to Naval Air Station Joint Reserve Base Fort Worth, formerly Carswell Air Force Base.