The world of eVTOLs is full of eye-catching designs and imaginative systems, but the concept released this summer by CycloTech might set a new standard, since it uses what it says is a one-of-a-kind ...
Sharrow's extraordinary looped propellers were already some 30% more efficient than traditional designs – and now the company has put two of them together into a coaxial, contra-rotating prop that ...
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