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MoU to demonstrate the might of German hydrogen power
Having grown out of a partnership between the German Aerospace Center and the University of Ulm, H2Fly has demonstrated hydrogen fuel cell technology in aviation. It will draw on the expertise of Deutsche Aircraft.
H2Fly co-founder and CEO Josef Kallo and Deutsche Aircraft CTO Martin Nuesseler.

H2Fly, a German start-up developing hydrogen fuel cell systems for aircraft, and Deutsche Aircraft, a new German manufacturer putting climate change centrestage, have signed a memorandum of understanding to work together on the research and development of hydrogen fuel cell technology for commercial regional aircraft.

The partnership will see the two companies convert the Dornier 328 aircraft for hydrogen flight, with the demonstrator aircraft expected to take to the skies in 2025. The programme is expected to validate the potential for hydrogen to deliver climate neutral regional air travel with up to 40 seats, while demonstrating German leadership in this important field.

Having grown out of a partnership between the German Aerospace Center and the University of Ulm, H2Fly has demonstrated hydrogen fuel cell technology in aviation. The four-seater hydrogen-electric-powered HY4 has proved successfully in multiple flight campaigns and over 70 takeoffs the applicability of this technology in aviation. With its range of up to 750 km, regional markets can be developed.

The announcement marks the next step on the journey towards making climate neutral regional flight a reality, with the teams planning to equip the demonstrator aircraft with a 1.5MW hydrogen system, making it the most powerful hydrogen-electric-powered aircraft to date.

The project will see the companies work together on integrating the power system into the aircraft as well as defining the specific technical and certification requirements for fuel cell systems in EASA's large aircraft class (CS25). The project is designed to complement the German Federal Government's aviation strategy.

H2Fly co-founder and CEO Josef Kallo says: “Flying provides an incredibly important opportunity for humankind, but today that opportunity comes at a significant cost to our planet. Hydrogen fuel cell technology provides an opportunity for us to completely eliminate carbon and NOx emissions from regional flights, and the technology to make that happen is closer than most people think. Over the last 16 years we have worked hard to demonstrate our technology on smaller aircraft, completing record breaking flights based six powertrain generations. Today we're pleased to be taking that to the next level with Deutsche Aircraft as we scale our efforts up to regional aircraft.”

Deutsche Aircraft CTO Martin Nuesseler adds: “We are convinced that the higher propulsive efficiency of propeller powered aircraft will drive the change in propulsion technology and will result in reducing fuel consumption and emissions even further in the future. Combining modern propeller aircraft design with zero carbon energy sources is central to achieving climate-neutral air transportation.

“We are looking forward to partner with companies that not only share our passion for the environment but also have the technical expertise to ensure that climate-optimised aviation stays safe and reliable. We are convinced the partnership with H2Fly will move us forward on the path to applying hydrogen fuel cells in larger aircraft.”

Thomas Jarzombek, member of the German Bundestag, coordinator of the Federal Government for German Aerospace, concludes: “From 2035 onward hybrid-electric flying has to be the new standard in Germany. I am happy about the agreed technological cooperation for sustainable aviation made in Germany. The German Government will continue to support this path to innovation with its R&D funding programme, aiming to let the vision of a zero-emission aircraft become reality.”

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