A design fix for the F-35C that strengthens the wing to support the weight of the AIM-9X air-to-air missile will cost about $8.8 million, Inside Defense has learned. The initial cost estimate assumes that flight testing the design fix this month will be successful, according to a Dec. 28 Navy information paper viewed by Inside Defense . Thirty-two F-35C jets will require the modification and the Pentagon anticipates the retrofits will be completed by the end of 2018, the paper...