[NSRCA-discussion] flutter again

[J N Hiller]

Just got home.
George attached is a drawing of a devise I used in pattern planes with
torque rods before I started using dual servos.
The rod inside the tube is oiled relying on molecular friction to disrupt hi
frequency oscillation. I just used motor oil as hi viscosity oil wasn’t
necessary. It worked well without and ‘stick-slip’ brake-away friction and
no noticeable resistance to normal servo travel.
Jim


-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of George Kennie
Sent: Friday, September 13, 2013 2:01 PM
To: General pattern discussion
Subject: [NSRCA-discussion] flutter again

Hi Guys, I'm in need of some experienced advice. I have a large foamy, about
the size of a 46 size glow model, but it has servos similar to Hitec
HS-65"s, but just a tad stronger. The model flies extremely well except for
the fact that it exhibits flutter on all surfaces at speeds above about 30
mph. Into the wind maneuvers are not bad as the speed is more easily
controlled.
I'm thinking that if I put larger servos with stronger holding power I might
be able to rectify the condition and I was wondering if someone else might
have had a similar experience and corrected the problem using the above
mentioned solution?
Thanks for any helpful advice,
 Georgie
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