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John, Joseph & Carl,
Thank you for your input.  I think I'll add some extra weight just to be
sure.
Carl, the 28 oz-in were measured one foot aft of the hinge line.  A small
weight balanced the rudder at that point so I simply multiplied that weight
by twelve inches to get the in-oz couple.
Rob, who has a Phd in aero design (?) thinks the rudder is the least
suceptable to flutter with the ailerons being most worrysome.  He thinks
what I have will be ok.  I just remember the Army flight school at Ft
Wolters where they showed us all the old films, one of which showed an
aileron departing a wing after much less than one second of diverging
flutter.  The only film worse was the one Sikorsky made with the camera
mounted on the rotor hub watching one blade as it made its way around in
cyclic and collective pitch, flapping, leading and lagging and feathering
and flexing in very scary ways.  For many years the engineers (management)
refused to show it to the test pilots.
Thanks,
Walter Dodson  IV-P with too many wires

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