The impact of a proposed reduction in Air Force and Navy F-35 buys is not inconsequential for prime contractor Lockheed Martin, but it also will not have a significant impact on the Joint Strike Fighter program's cost, according to a company executive. In their fiscal year 2015 budget proposals, both services laid out plans to reduce the rate at which they buy their service-specific F-35 variants over the next several years -- the Air Force by just five aircraft and...