Rudder counterbalance ?

[Gray E Fowler]

"Why not mass balance for flutter elimination. When most full scale 
aircraft
get painted they have to check balance of the surface ( ie Piper
Cherokee's). 

Bill "


Because most spend hundreds of dollars removing ounces of weight.

Flutter is natural frequency-speed driven. If you have flutter it is 
usually an indication of a serious stiffness problem, either in the set up 
or the structure itself. Instead of counter balances and otehr tricks, 
just increase the stiffness. That will be the biggest bang for the weight 
buck.



Gray Fowler
Principal Chemical Engineer
Composites Engineering
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