The Pentagon will be a couple of months late flight testing a design fix for the Navy's version of the Joint Strike Fighter, a fix that strengthens the wing to support the weight of the AIM-9X air-to-air missile. The F-35C carrier variant test aircraft is undergoing modifications involving the proposed design change and the Defense Department expects to begin testing in January 2017 instead of the planned November date, F-35 joint program office spokesman Joe DellaVedova wrote in a Nov...