Two very different hydrogen-powered aerial vehicles have come to our attention, each with a different mission, but both with endurance and range as primary functions. Both use a fairly straightforward fuel cell/motor arrangement to power their flights. Vicor/DMI Fuel Cell Drones Doosan Mobility Innovation (DMI) is a major drone manufacturer, and their largest products push against the FAA’s 55-pound (24.97-kilogram) weight limit. Their DM30, powered with a DS30 fuel cell and a 10.8 liter H2 tank weighs 21 kilograms and can carry a five kilogram (11 pound) payload. Carrying a full payload may require using the smaller seven-liter tank. Alessandro Mascellino, writing in EE Power, describes recent combination of resources that makes long-range drone deliveries possible. “The first machines built as part of the collaboration can fly two hours on a single charge and have already transported masks and emergency supplies between US Virgin Islands. The drones feature a number of power components by Vicor.” Partnering with Vicor, Doosan provides …
