Heavy Wing...need help on how to proceed.

[AZBearhawk272]

First, Congratulations on your completion and first flights! Huge acomplisnment!

There is a bit of conflict in those instructions.
I would reserve working with the washer solution until a little further down the road when some more data and behaviors are observed.

How heavy is heavy? Is it unsafe to fly or just troublesome irritation?
Why do you express the situation as wing is heavy
rather than one side is light?

There is a lot going on in the first flights and not all the
observations sort out as correct.

recommend that the push rod on the heavy wing be turned out 1 at the aileron.

Examine the aileron slot slot above the aileron at the wing and the fit of the aileron to the wing at the bottom leading edge. Are the right and left relationships the same?

then fly and note change?
Try 1 and 2 notches of flaps at about 80 mph.
does the feel or heavy ness change?
can you pick up the heavy wing with application of opposite rudder? If you hold the wings level at 80 mph
and release the rudder pedals what yaw does the nose display?

wings level, ball centered, what are the ailerons position
in flight?

how is the pitch? Are you ballasted to near mid CG?
at 80 trimmed for as much hands off as possible
what happens if you slowly pitch nose down to 90
and release forward pressure? Nose pitch up or continue to tuck down?

lot of questions, lot of observations, proceed slowly, small reasoned changes otherwise you will chase your
tail and undo the just done.

the alignment and rigging is critical as a1/16 thick washer will move the hinge point about 3/32.
Raising the hingepoint up, shim on the bottom should lower light wing and overall lighten the ailerons feel.
Raising the hingepoint, reduces the “camber “ of the wing therefore reduces the lift on the light wing. ie the light wing comes down....

hope this helps

Kevin
#272

[Aero_tango]

Hi,
I did my 1st flight last weekend on my 4-place and noticed a heavy wing problem (left wing). Did a second flight today, using an un-balanced fuel condition (15 gal more in the right wing), heaviness didn’t noticeably change.

I want to proceed with the washer trick under the aileron attach weldments.

Problem is, l’m reading conflicting recommendation on how to proceed.
Mark recommends to place the washer under the UPPER leg (heavy side) and Bob says under the BOTTOM leg .
I’ve copied and paste exact wording from both sources. Bob’s recommendation is from 2006 q4 beartrack. Mark is from a forum reply, May 2014.



Mark Goldberg recommendation:
Placing 1/8" washers between the aileron attach weldments and the rear spar where it is bolted - this is what you would do on the three UPPER "legs" of the weldments. Two "legs" on the weldment where the pushrod comes out and the one on the outboard weldment. This in effect lowers the aileron a little helping "lift" the heavy wing slightly. If that isn't enough, then you can place the same 1/8" washers under the lower attach points of the weldment for the aileron on the "light" wing.

Beartrack 2006 Q4:
Bob recommendation: If your plane has a heavy wing in its initial flights, after checking the flaps are inline on both sides, and you notice that when flying hands off one aileron is high and one low. A correction should be made by putting a AN970-3 washer (wide area washer) – drilled out to 1/4” – under the bottom of the inboard and outboard aileron hinge mounts on the HEAVY WING SIDE. This effectively lifts the aileron on that side. Bob