An F-35A Lightning II flies through the sky at Eglin Air Force Base, Florida, July 30, 2020. The F-35’s engine produces 43,000 pounds of thrust and consists of a three-stage fan, a six-stage compressor, an annular combustor, a single-stage high-pressure turbine, and a two-stage low-pressure turbine. (U.S. Air Force photo by Airman 1st Class Heather Leveille)