Hydrogen-powered Drone ’Hycopter’ Stays in Flight for 4 Hours [Video]

Hydrogen-powered Drone ’Hycopter’ Stays in Flight for 4 Hours [Video]
To see the original post and the Video, click here A Singaporean company has developed a quadcopter drone that stores pressurized hydrogen in its frame rather than carrying the weight of a battery, an innovation that could increase drone autonomy and reduce overall costs. After steam, coal, and electricity, ... Watch Video