REFLECTOR: HIGH SPEED FLUTTER

Tom Martino tmartino at troubleshooter.com
Sat May 14 11:01:38 CDT 2005


I recently added a ground adjustable trim tab to the right aileron.  I
is 10 inches long and 2 inches wide.

 

After that the aileron started fluttering at around 150 KIAS.

 

I timed it down by on-half inch ... then got flutter at 180 KIAS.

 

I am going to trim it more ... does anyone have a trim tab on their
aileron?  Have they experienced this phenomenon?

 

Should I have added a little weight to the other aileron to "balance
them out"? 

 

Prior to this I have tested my plane up to 195 KIAS and did not get any
vibration or flutter.  So I suspect it IS the trim tab.

 

Any thoughts?

 

Tom

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