Hydrogen-powered drone completes second test flight, lands well with redesigned landing gear

摘要

A hydrogen-powered unmanned drone built by the Boeing Co. Defense, Space & Security segment in St. Louis completed its second test flight in late February during which the twin-engine propeller-driven unmanned aerial vehicle (UAV) demonstrated capabilities that will enable it to perform intelligence, surveillance, and reconnaissance (ISR) missions for up to four days without refueling, Boeing officials say. The flight, at NASA's Dryden Flight Research Center at Edwards Air Force Base, Calif., saw Phantom Eye climb higher than 8,000 feet and cruise for 66 minutes at 62 knots before landing.