RE: My Shiney New Kirara Gyrocopter
No hinge by definition. The fiberglass plate that they attach to is super stiff. The only "flap" in the blade comes from the blade itself. The blades are all balsa with a thin steel rod imbedded in the leading edge. There is a little play in the bearing block. As a heli pilot I am tempted to insert some green locktite to eliminate this. I think this would tighten up the rotor response in all aspects. However, I also think this mod would result in some stripped aileron servo gears and I'm not in the mind to invest in some 9252s or better for this autogyro.
If you need a better pic than this let me now.