Horizon Energy Systems (HES), originally based in Singapore, has pursued lightweight hydrogen propulsion systems for the last 12 years, primarily for amall drones. Going larger, the company announced plans today for Element One, “the world’s first regional hydrogen-electric passenger aircraft.” A four-passenger, 14-motored (!) monoplane, Element One will carry the lucky foursome 500 to 5,000 kilometers (310 to 3,100 statute miles). This distributed power system claims “virtually no change to its current drone-scale systems,” which is a little puzzling, considering the largest of such systems produces no more than 1,000 Watts. The scale of the Element One and its power packs is ambiguous, with illustrations showing a nine-axle trailer with attached solar panels ostensibly powering the on-site production of H2. One illustration depicts a drone-launching site with fuel pods possibly approximating the size of the units that will be used on Element One. These are larger and their scale relative to the people in the illustration gives an approximation of …