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A good pair to my previous post - a nice summary of what needs to happen for electric propulsion in aviation. Four concepts are discussed: air taxis, 20-passenger commuter aircrafts, 50-passenger regional jets and 150-passenger, single-aisle 737 class aircraft.

ZeroAvia announced a development collaboration with Alaska Air Group, the parent company of Alaska Airlines, for a hydrogen-electric powertrain capable of flying 76-seat regional aircraft in excess of 500 NM. Alaska is also joining the list of top investors for the company, alongside a fellow Seattle-based Amazon Climate Pledge Fund and Bill Gates's Breakthrough Energy Ventures. Alaska Airlines has also secured options for up to 50 kits to begin converting its regional aircraft to hydrogen-electric power through ZeroAvia's zero-emission powertrain. Zero emission would be a huge step, and nice to see Bezos and Gates both involved.