Will flying ever be green?

On 16 December 2021, a group of men dressed in the sober, branded casual wear of the Silicon Valley startup gathered on the asphalt at an airstrip outside Salinas, California. In front of them stood a black shiny capsule on three spindly legs, which resembled the offspring of a suppository and a golf trolley, with a V-tail like a humpback whale. Its single cross-span wing had four banks of three rotor blades – six at the front and six at the back – which made the sound of a loud hairdryer.

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