Joby Aviation says a hydrogen-powered version of its electric vertical takeoff and landing (eVTOL) aircraft successfully completed a 523-mile test flight. The only byproduct from the prototype, which has a liquid hydrogen fuel cell and hydrogen-electric propulsion system, was water vapor. The company suggested that the test flight points toward a future of emissions-free regional aviation in an industry that still relies heavily on fossil fuels.
This is believed to be the first liquid hydrogen-powered eVTOL forward flight. Joby kept the same shell and most of the guts of its battery-electric
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