A pilot assigned to the 63rd Fighter Squadron prepares an F-35A Lighting II for flight at Luke Air Force Base, Ariz., Dec. 1, 2017. Before every flight pilots perform a series of aircraft tests, with the help from a crew chief, to ensure the aircraft is functioning properly. ( Air Force photo/Staff Sgt. Jensen Stidham)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -35