NRL completes first flight of UAV with custom hydrogen fuel cell - Phys.Org

http://phys.org/news/2016-12-nrl-flight-uav-custom-hydrogen.html

Phys.Org

NRL completes first flight of UAV with custom hydrogen fuel cell Phys.Org Researchers from the U.S. Naval Research Laboratory's chemistry and tactical electronic warfare divisions completed the first flight of the Ion Tiger unmanned ...