Ford flying high with futuristic Boeing UAV.

The Boeing Company, using a Ford Motor Company-developed hydrogen engine, has successfully tested the hydrogen propulsion system of its High Altitude Long Endurance (HALE) unmanned aircraft. "This test demonstrates the technical readiness of the hydrogen engine system and confirms the capability breakthrough in flight endurance and altitude that could be realized by a variety of military and commercial customers," said Darryl Davis, vice president and general manager, Boeing Advanced Precision Engagement and Mobility Systems.