New navigational satellites being built by Lockheed Martin Corp are “on schedule, on target,” the head of U.S. Air Force Space Command said on Thursday, dismissing a new congressional report that cited an 18 percent cost increase on the program. Air Force General William Shelton told a defense writers group that Lockheed’s Global Positioning System (GPS) III satellite program was doing well and was “not even close” to breaching cost thresholds that would trigger a mandatory notification to Congress under the Nunn-McCurdy law. Read More