I'll be building the gravity furling mech. and was wondering what diameter pipe and schedule (40) I see most is working well for the slip over bearing and tail hinge. I figure the weight of my alternator, rotor and blades to be around 100-120 lbs to error on the high side. It is a 12' diameter blade. Wouldn't having the bearing surface on the lower or bottom of the pipe be stronger or more stable than hanging on the top ? I realize the advantage of having the hole for the wire with the common way and it all moves together but with over 100 lbs up there it seems that lowering the pivot point would be benificial. Thank you for your comments. Dave B.
