REFLECTOR: HIGH SPEED FLUTTER

[Scott Derrick]

Tom,

You should carefully inspect all the hardware associated with your 
aileron's.  Flutter is very destructive and may have damaged the hinges, 
torque tube assembly,  push-pull cable mounts, etc...

Scott


Ron Brown wrote:

> Tom, I would suggest installing your trim tab on the wing instead of 
> the aileron.  As Keith and Alex have suggested, adding a trim tab to 
> the aileron upsets the balance and can lead to destructive flutter (it 
> can tear the aileron off!!!)
>
> If you have a heavy wing, the correction is to add shims to the wing 
> bolts (either the upper bolt of the heavy wing or the bottom bolt on 
> the light wing).
>
> Or you can install the trim tab on the wing between the winglet and 
> the aileron cut out.
>
> I used a Gurney Flap (See http://aerodyn.org/HighLift/gurney.html or 
> do a Google Search on Gurney Flap for more info) on my heavy wing with 
> some success.  I cut a piece of 1/8" tubing 12" long and added it to 
> the bottom of the trailing edge of the wing between the aileron and 
> winglet.  I stuck it on using silicone.  You can user a larger 
> diameter tube. say 1/4" for more serious heavy wing conditions.  It 
> doesn't add much drag and seems to work well.
>
> Ronnie
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