ORIGINAL: Norfolk Flyer
This has given me an idea for a 2 - rotor concentric arrangement like we find on some micro helis, but on an autogyro, with 2 * 2 blade contra rotating rotors, each one with teetering. The rotors would have to be spaced some distance apart to avoid blade collisions.
Any thoughts anyone?
Hi John. I have some thoughts about your idea. 1) If you are going to use directly head tilt cyclic control, the height of the co-axial arrangement is going to place a very high load in the servos used for cyclic to the point where it might be unworkable. 2) I can't say for sure, but I have read somewhere that a co-axial arrangement will compromise the blade efficiency, so it dosen't have a real benefit for autogyro use.