For all the energy and excitement being put into hydrogen-powered flight development, even now in 2024, the companies to have taken to the skies, relying solely on hydrogen electric powertrains remains extremely limited.
Being fortunate enough to attend one of those test flights, H2 View in September 2023 on a sunny airfield in Maribor, Slovenia, witnessed H2FLY’s HY4 prototype aircraft take to the skies using liquid hydrogen for the very first time.
The liquid hydrogen test flight followed over 110 successful flights using gaseous hydrogen since 2016. In 2022 it set a world record, flying at 7,230ft on a 77-mile journey between Stuttgart and Friedrichshafen.
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