Alternate rotor

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Alternate rotor

Post by nrhenderson » Sun Jan 02, 2011 7:11 am

Many years ago, while in college, I saw an alternate rotor that seemed to be way more efficient than a helicopter rotor. I have never seen it demonstrated or described anywhere else.

Basically, imagine a voith-schneider like propeller rotating around an axis. Imagine that axis pointed in the direction of flight and then elevated upto 45 from the direction of flight. (It was a bit like an American football.) With that elevation you have lift and propulsion. It seemed to me at the time to be far, far superior to helicopter rotors, but no one ever seems to have heard about it or tried it.

Does anyone know what these rotors are called?

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Re: Alternate rotor

Post by tex4056 » Fri Jan 07, 2011 3:56 am

Cyclogyros come close, although their rotor axes are perpendicular to the direction of flight.


They look somewhat like flying grain harvesters.
In theory, theory and practice are the same; but in practice, they're different.

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