H2Fly Preparing To Fly Liquid-Hydrogen Fuel-Cell Propulsion

H2Fly’s fuel-cell-powered HY4 testbed undergoes gaseous-hydrogen refueling between test flights.
Credit: H2Fly
With 15 years of experience with hydrogen propulsion over six generations of fuel-cell powertrain, Germany’s H2Fly is preparing to take the next steps: flying on liquid hydrogen and moving up to a 40-seat regional airliner. H2Fly’s test aircraft, the HY4, is being prepared for long-range flights on...
Graham Warwick

Graham leads Aviation Week's coverage of technology, focusing on engineering and technology across the aerospace industry, with a special focus on identifying technologies of strategic importance to aviation, aerospace and defense.

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