The Air Force is urgently seeking contractors that can train F-35 Joint Strike Fighter pilots to avoid "dense advanced surface-to-air missile threats," in response to last month's directive from Defense Secretary Jim Mattis that four fighter jet fleets need to be 80 percent mission-capable by the end of fiscal year 2019. "The Range Systems Branch at Hill Air Force Base [UT] requests information from industry related to providing training for F-35 aircraft until the Advanced Radar Threat System Family of...