DARPA and Northrop Grumman start flight testing XRQ-73 hybrid-electric uncrewed demonstrator under SHEPARD
DARPA and Northrop Grumman have test-flown the XRQ-73 “Shepard” hybrid-electric flying-wing prototype at Edwards Air Force Base, using an ultra-quiet electric propulsion system powered by electricity generated from a gas turbine. The program follows DARPA’s X-Prime work and comes nearly two years after Northrop completed XRQ-73 assembly.