Vance Jaqua wrote:

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Ray
Several people, from a number of different web
"groups" have asked about the equation that
the PFA provided for the flutter analysis.
My feeling is that flutter is a very comlex
problem, not ameniable to direct calculation,
So I too am very curious as to the form of
this equation. Irv Culver, a well known
engineer from Lockheed, and involved with
home built sailplane designs, expressed a
very simplified approach for flutter avoidance
is to design for a torsional frequency much
higher than the "flapping" frequency, as well
as good counter balancing procedures for
control surfaces.
Please send us a copy of the PFA approach if you
can. - Vance

 
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