Question: Where in Texas is the F-35 Lightning II manufactured?
Answer: The F-35 is primarily assembled and checked out at Air Force Plant 4 in Fort Worth, a government-owned facility operated by Lockheed Martin Aeronautics. The first F-35 completed assembly there in 2006. Fort Worth is the program’s main final-assembly site, although additional F-35 final-assembly operations and international suppliers support production abroad. By early 2026, more than 1,290 F-35s had been delivered worldwide.
