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 air taxi but it reduced the battery load and installed a fuel tank that can store up to 40 kilograms of liquid hydrogen. This is pumped into a fuel cell system to produce electricity, water and heat. The electricity generated from the fuel cell powers the air taxi's six electric motors while the batteries deliver extra power during take off and landing.
By Kris Holt.
Full story at Yahoo News.
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