The last time hydrogen-laden flying vessels zipped around the heavens didn’t end all that well, but that isn’t stopping Heven Drones from fueling up its H2D55 drone. The company claims the octacopter can fly for over an hour and a half, with a payload of 7 kg (15 lbs). The drones are built to spec, and […]
Targeted at commercial and military, hydrogen-powered drones are coming by Haje Jan Kamps originally published on TechCrunch...