The Pentagon plans to make "significant" research and development investments in fiscal year 2016 to preserve its Joint Strike Fighter design teams and begin work on competitive prototypes to shape the next-generation aircraft that will eventually replace the F-35, according to Frank Kendall, the Defense Department's acquisition chief. The Aerospace Innovation Initiative will be led by the Defense Advanced Research Projects Agency in coordination with the Navy and Air Force to develop prototype airframes and jet engines to shape a...