H3 debuts all-in-one hydrogen powertrain pods for long-range flight

France's H3 Dynamics has presented its self-contained hydrogen propulsion pods for retrofit or line fit to drones and airplanes. They deliver enormous range and endurance figures without heavy batteries, and they mirror the approach Airbus and others are taking with commercial airliners.

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https://newatlas.com/drones/h3-hydrogen-propulsion/