F-35 AF-2 first flight
This Air Force version of the F-35 Lightning II completed a test flight April 20, 2010, from Naval Air Station Fort Worth Joint Reserve Base, Texas. The F-35 is the first aircraft to be developed to meet the needs of three services -- the Air Force, Navy and Marine Corps -- and U.S. allies, with variants being developed simultaneously by prime contractor Lockheed Martin. (Courtesy photo)