All,
I am having some problems matching my elevators.

When I installed the elevator/stab assembly, the insidence was checked with an insidence meter. One side of the meter was on the stab and the other side on the elevator. The elevators were centered by matching the counterbalence to the stab. The insidence was off one was -1deg and the other was +2deg. This was corrected by adjusting the anti-rotation holes.

I am using an Hitec Eclipse and digital servos. I have a deflection meter as well as a digital servo programmer.

The plan was to tape CF rods to the elevators with the tips coming together behind the rudder then use the programmer to reverse/match the elevator servos.

With both elevators centered(counterbalence aligned with leading edge of stab) the CF rods do not line up. If I adjust the linkage to make them line up then one elevatoe is slightly up and the other slightly down in refrence to the stab/counterbalence alignment.

I used a calipar to set the control horn differences the same and I am using SWB arms.

If I make the carbon fiber rods match then they stay together with up elevator but do not stay together with down elevator.

This I should be able to adjust with the programmer but i would like to make sense of it first.



At this point I am kind of lost! Please Help



What is more important having the rods match or having the counterbalence-stab match?

Could I have misadjusted my insidence?

If you adjusted the incidence using the counter-balance as the reference, then you probably mis-adjusted it. Always match the most powerful part of the elevators (the main body). Counter balances that are off a little are a common problem in arfs... I think it winds up being cosmetic.

On mine I needed a multi-point mix to get my elevators to track together because the pre-drilled holes for the control horns were quite different... I even has to use a longer pro-link on one side.

Hey Dan,
Would a Smart fly equilizer help? I have the one that I took out of the Funtana90, that I would cut you a heck of a deal on!!!!

How can I set the insidence using the main body it the elevators are already hinged to the stab?

Not the main body of the vertical stab, the main body of the elevator... the big flat part behind the elevator.

I rechecked and fine tuned the insidence very carefully, then carefully taped on the rods, everything now lines up.