Many companies that produce eVTOLs are saying that they can not only replace some air journeys with a greener alternative, but that their main competition is in fact cars. From a green standpoint, these claims don't fully stand up to examination. LAST YEAR, while moving through the hordes of people at the first Farnborough Air Show in four years, it quickly became clear that a certain genre of stand had stolen the show. Huge crowds gathered to sit in model cockpits or walk around the fuselages of retired prototypes. Their promises were radical- a greener way to fly and the potential for a zero-emission aviation industry. According to the marketing material at least, this had the potential to change everything.
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