Lots of comments saying it's impractical but there are already several companies working on hydrogen (both gas and liquid) powered designs. Airbus/Delta and Zer

Lots of comments saying it's impractical but there are already several companies working on hydrogen (both gas and liquid) powered designs. Airbus/Delta and ZeroAvia/Alaska for example. https://www.airbus.com/en/innovation/zero-emission/hydrogen/zeroe https://www.airbus.com/en/innovation/zero-emission/hydrogen/... https://en.wikipedia.org/wiki/ZeroAvia https://en.wikipedia.org/wiki/ZeroAvia