Manned multicopters have already happened. [1] MIT has also demonstrated a variable pitch quadcopter. [2] If they can use plasma laminar detachment and reattac

Manned multicopters have already happened. [1] MIT has also demonstrated a variable pitch quadcopter. [2] If they can use plasma laminar detachment and reattachment to somehow simulate a variable pitch propeller, while still getting some weight savings over a design with multiple swashplates, then yes I think it should help the quadcopter design scale up to larger propellers. That's a big if though, since to simulate a negative angle of attack I'm guessing your propeller design would have to be pretty inefficient with all plasma turned off. I'm not entirely sure why you want this though, since the single large rotor is more efficient. There was a novel design a few years ago with one large rotor for lift and three smaller ones to counter torque and provide control. [3] [1] https://www.youtube.com/watch?v=L75ESD9PBOw https://www.youtube.com/watch?v=L75ESD9PBOw [2] https://www.youtube.com/watch?v=Vy5Ky50eGJs https://www.youtube.com/watch?v=Vy5Ky50eGJs [3] http://www.geek.com/science/weve-been-designing-quadcopters-incorrectly-since-day-one-1577256/ http://www.geek.com/science/weve-been-designing-quadcopters-...