REFLECTOR: HIGH SPEED FLUTTER

[KeithHallsten]

Did you re-balance the aileron after adding the trim tab?  The tab will
certainly add weight to the back of the aileron, which will change the
balance significantly.  Probably not a good idea.  Do not screw up the
balance of the other aileron!


----- Original Message ----- 
From: "Tom Martino" <tmartino at troubleshooter.com>
To: <reflector at www.tvbf.org>
Sent: Saturday, May 14, 2005 9:01 AM
Subject: REFLECTOR: HIGH SPEED FLUTTER


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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