First Flight of the Valkyrie – a Step Closer to Manned-Unmanned Flying Formations By Tamir Eshel The US Air Force’s latest unmanned aircraft system (UAS), XQ-58A Valkyrie demonstrator completed its inaugural flight March 5, 2019, at Yuma Proving Grounds, Arizona. The Valkyrie is a long-range, high subsonic unmanned air vehicle designed to operate autonomously or …