The first class of enlisted airmen who learn to fly remotely piloted aircraft will serve as a test case for potential policy changes, as the Air Force looks to the future of unmanned warfare and tries to meet a growing demand for RPA pilots. The service announced in December 2015 that career-enlisted airmen would soon be allowed to apply to fly the Northrop Grumman-made RQ-4 Global Hawk to bolster RPA pilot ranks. In August, the Air Force broadened the offer...