The X-plane for DARPA’s Series Hybrid Electric Propulsion AiRcraft Demonstration (Shepard) program has received its official designation, the XRQ-73. Northrop Grumman’s Aeronautics Systems division in Redondo Beach, CA, is the program’s prime contractor. The aircraft concept specialists at the Burt Rutan-founded Scaled Composites are a major supplier. Shepard is an X-prime program that hopes to […]