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<DIV><STRONG><FONT face="MS Sans Serif" color=#008080 size=2>Playing the devils
advocate here Matt I suspect their is still vibration with electrics.. Just at a
significantly less problem issue for us. Maybe I am clinging to my current
technology base as I sure can't afford the change again.</FONT></STRONG></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Rcmaster199@aol.com
href="mailto:Rcmaster199@aol.com">Rcmaster199@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, February 21, 2004 4:35
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: aileron servo instl vs
vibration</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 face=Arial size=2
FAMILY="SANSSERIF" PTSIZE="10">Xavier, Jerry's obsrevations are similar to
mine.<BR><BR>To counter the effects of the vibration a little more, what I try
<BR>to do is to build the aileron as light as possible. The best I have been
able to achieve is an aileron weight of about 30 grams for a typical aileron
found on a 2 meter plane. The idea is to reduce the amount of force translated
back to the servo . <BR><BR>Another thing I have tried recently is statically
counterbalancing the ailerons. The system I used wasn't stiff enough however,
and shook more than I wanted at idle. But the idea has merit and I will pursue
it further with a stiffer system<BR><BR>Yet another area to work on is the
engine mounting system, such that the transferred vibration is minimized. The
system Earl Haury was talking about the other day would be serendipidous for
pattern modellers<BR><BR>Of course, as Jerry stated and Tony F and Jason
S. have already found out, a well thought out, balanced, electric set-up
should eliminate the vibration completely<BR><BR>Matt
K<BR><BR><BR></BLOCKQUOTE></FONT></FONT></BODY></HTML>