Afaik it's one of the three H2 airframe options Airbus is pursuing. https://www.airbus.com/en/innovation/low-carbon-aviation/hydrogen/zeroe https://www.airbus.

Afaik it's one of the three H2 airframe options Airbus is pursuing. https://www.airbus.com/en/innovation/low-carbon-aviation/hydrogen/zeroe https://www.airbus.com/en/innovation/low-carbon-aviation/hyd... The general idea is to use liquid H2, like the old KN-88 design. https://en.wikipedia.org/wiki/Kuznetsov_NK-88 https://en.wikipedia.org/wiki/Kuznetsov_NK-88