2023
Another world’s first: Liquid hydrogen
Laying the final piece of technical ground work before commercial hydrogen-electric aviation can take off, H2FLY together with it’s partner Air Liquide, is the first company to successfully run its hydrogen-electric powertrain on liquid, cryogenic hydrogen.
2022
Breaking the world record
Our hydrogen-electric demonstrator aircraft HY4 sets a record crossing the altitude of 7,000 feet, proving the potential of hydrogen and fuel cells to make sustainable air travel a reality. In the same flight testing campaign, our team realized the world’s first cross-country flight, showcasing that the technology can be embedded in today’s airspace and ground operations.
2021
Partnership with Deutsche Aircraft
Our partnership with Deutsche Aircraft to achieve the goal of zero carbon in-flight emissions, by developing a hydrogen fuel cell-powered Dornier 328 aircraft demonstrator in 2025, is announced.
2021
Onboarding of strategic investor
H2FLY is acquired by the world’s leading eVTOL company Joby Aviation and gains a strong, long term strategic partner. Furthermore, H2FLY wins German and European government-backed research grants to realize the future of sustainable air tavel.
2020
Demo flights with redundant architecture
The sixth generation of our powertrain is tested in-flight. The long-endurance flight and highly redundant powertrain architecture, prepares us for the coming type certification processes.
2016
HY4 is airborne
The HY4 celebrates its maiden flight. A test campaign of 32 flights over four days proves the scalability of H2FLYs fuel cell powertrain and demonstrates the fast-refueling capability of our hydrogen propulsion system.
2015
Founding H2FLY
Josef Kallo and his team focus their research and found H2FLY out of the University of Ulm and the German Aerospace Center (DLR).
2009
The first hydrogen-powered flight
The world’s first manned and purely hydrogen-powered aircraft takes off. Developed by a team of engineers at the German Aerospace Center (DLR), Antares allows a glimpse into the future of aviation.