john flynn

Thanks for the input fellas. So long as the pushrod that drives the bellcrank is sturdy, kept short and straight and the keeper holes for the clevises are the right size, the system will be no more suseptable to slop than any push/pull setup. A symmetrical closed loop from the bellcrank to the control horns remains in constant tension so no slop is possible that side. Swooper, what you suggest is what I want to end up with, I guess I'll have to make a mock up to achieve it. I was just going to drill a series of holes down one side of the bellcrank and try em all to find the right spot. But I was hoping someone could point out geometrical formula I could use instead of all the mucking around. Thanks again for your help men. Kind regards, John.