Twin Elevator Servo problem, help.
Im having problems with my elevator servos on my u can do. Its been there from the start but as I improve and try to clean up my maneuvers its beginning to get in the way. Maybe this stuff is just the nature of the beast when dealing with 2 elevator servos I dunno, Heres the deal.
I have 3001 Futabe servos on my elevators.
I have worked really hard to get the servo arms centered and setup exactly alike on the servo itself. I have got my pushrods tuned up so that I have no subtrim and perfectly centered elevator halves. All of the pushrods have no play, no bind, everything fits up nicely.
In the neutral position everythng looks right.
Problem 1.
When I begin to feed in elevator up or down the servos travel at different speeds to the desired elevator input. One actually travels faster than the other.
Problem 2.
Plus they may or may not matchup at various points in the travel between neutral and full up/down. So unless I am at full up/down the halves may be off by as much as 1/4"+. But at full throw they match on high rate.
Problem 3.
I have the high rate elevator throws lined up perfectly at the endpoints, but when I switch to low rates the two elevator surfaces do not match up at the low rate endpoint. In other words one has traveled further than the other.
What is going on here? I am going nuts. Especially the fact that 1 servo seems to actually be significantly faster than the other. I think the EP issue can be worked out on the 9Z but not on the 9C when dealing with endpoints at 2 different rates. Help..