After several years of working with engine-makers to test and prototype adaptive engine technologies, the Air Force is starting to take steps to field some of those capabilities -- building a roadmap for legacy system upgrades and awarding two major contracts to begin risk-reduction for a next-generation adaptive engine. Rafael Garcia, director of Air Force Materiel Command's propulsion directorate, told Inside Defense the service is working with industry partners to build a roadmap for transitioning adaptive technologies developed through...