RE: Uncontrollable 100
Yes I have fixed the rudder tabs, that's not the problem. The rudder works. I think the problem lies in the wings (warpage) as well as the motor alignment. I used the washer trick to point the motor right after the urge to spin anti clockwise became evident. Motors are supposed to be offset to the right as far as i am aware, to counteract induced twist, but perhaps with such a large wingspan twist is immaterial. I will try going back to the motor aligned straight on and see how that works.
Yes it would be nice to have 100 acres of hay field but I only have about 12. Problem is trees on 3 sides and 11KV on the other side!