This pilotless VTOL took its first hydrogen-fueled test drive

Australian researchers are replacing compressed and liquid hydrogen in long-range drones with traditional electric batteries. These new fuel cells are lighter and can travel farther than traditional electric power, giving their unmanned drones a range of over 500 miles with just 55 pounds of hydrogen on board.
https://mashable.com/video/hydrogen-powered-aircraft This pilotless VTOL took its first hydrogen-fueled test drive