Northrop Grumman and DARPA introduce the XRQ-73 SHEPARD, a hybrid stealth UAV designed for new U.S. Department of Defense missions. Northrop Grumman Corporation recently unveiled the XRQ-73 SHEPARD, a hybrid stealth UAV developed for the Defense Advanced Research Projects Agency (DARPA). Weighing approximately 567 kg, this UAV combines hybrid electric architecture with […]