If this is covered in another thread, feel welcome to delete this one. However, I would appreciate the link to the original if possible. I was wondering if someone could suggest some basic parameters for gyroplane building. For example if a friend was building a simple homebuilt fixedwing model plane, I could boil it all down and say. "Make the fuse the same length as the wing. Mount the flat bottom wing 1/3 of the way back from the front. Balance the CG around the main spar or slightly behind. Make sure your vertical and horizontal stabilizers are big enough and the control surfaces are 1/3 the size of the stab surfaces." That should fly. Build it"

I wouldnt get into tail incidence, right/down thrust of the engine, and all that kind of stuff. They can tinker with that later.

Having this state of mind, can someone give me a rundown on a Gyro? I want the engine to be in front. Main mast sits at the CG of the body right? What angle does it tilt back, about 15 degrees? Flat bottom blades (I will make) are weighted and at 0 pitch right? Ok, which setup should I consider, since I am using a discarded heli main rotor, with fixed collective.

A. Cyclic roll, Tail elevator, Fixed rudder.

B. Full cyclic, full fixed tail.

C. Fixed cyclic, Tail elevator and rudder.

D. Some combination, for example. Cyclic roll -mix- rudder.

Thanks
Mark