Wahid,

Thanks for the link. I tryed using gutter pipe scrap for a hinge today ona 48 inch rotor and it didnt fly[:@] The plane had a 44x13 wing on it so i thought it would stablize it but it didnt. It did takeoff but kept rolling hard into the ascending blade. Thats weird because it shoud roll into the decending blade. My wing has 3 inh alierons with barn door throws and it just wouldnt over come the right tilting even with full rudder assistance.

Blades can flap 45 degrees up and about the same down. When the plane is standing still the blades droop a good 30 degrees. once spinning they form a nice coning angle. the pvc is very flexable and tough but it just want work for some reason.

Now are hinges suppose to be somewhat stiff or floppy? The pics i see look like the rotors are not drooping much at all when the planes are standing still.