Since last featured (see here) in this newsletter, Israel’s Heven Drones has launched several new models of its hydrogen-powered drones. The early model flew for 100 minutes with a 7kg payload. Its new HD250 carries 10kg for up to 8 hours and can travel 466 miles.
https://www.israel21c.org/hydrogen-power-takes-drones-to-the-next-level/