The liquid-hydrogen tank in the HY4’s left fuselage supplies the fuel-cell powertrain in the central nacelle.
Credit: H2Fly
Germany’s H2Fly has completed the first flights of a hydrogen-electric aircraft using cryogenic liquid-hydrogen storage. The piloted HY4 demonstrator performed four flights from Maribor, Spain, including one lasting more than 3 hr. Powered by a fuel-cell propulsion system, the HY4 previously was...
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