The seventh Lockheed Martin F-35 Lightning II flight test aircraft took to the skies for the first time today, with the overall objective of validating the F-35A conventional takeoff and landing (CTOL) variant’s weapons suite.The jet, known as AF-2 and piloted by Lockheed Martin F-35 Test Pilot Jeff Knowles, took off at 5:27 p.m. CDT from Naval Air Station Fort Worth Joint Reserve Base and flew for 1 hour and 23 minutes. “The first flight of AF-2 is a significant achievement for the F-35 program, the U.S. Air Force and our international partners who will operate the F-35A,” said James...