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<DIV><FONT face=Arial size=2>Scared of the Kevlar or the Wayne?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Amir</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- </DIV>I hear ya, I hear ya, but I'm still
scared. <BR>G.
<P>Wayne Galligan wrote:
<BLOCKQUOTE TYPE="CITE"> <FONT face=Arial><FONT
size=-1>Georgie</FONT></FONT> <FONT face=Arial><FONT size=-1>I had
kevlar pull/pull on my Prophecy for over two years with no incidence at
all. Don't be afraid.... kevlar is good! Its so easy
to use and if you every did need a field repair it is so easy to re
rig. Tie it off and a drop of c/a on the knot and go flying
again.</FONT></FONT> <FONT face=Arial><FONT size=-1>Wayne</FONT></FONT>
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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=geobet@gis.net href="mailto:geobet@gis.net">george
kennie</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> Tuesday, November 25, 2003
11:57 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: CTE</DIV> Sorry to
disagree here, but it would appear that the conclusion being drawn by the
respondants is that the pushrod expansion and contraction is the major
cause of the problem. Not so, in my experience! Going to pull-pull cables,
whether they be steel or kevlar thread will not get rid of the elevator
trim change under consideration here.The coefficient of thermal expansion
between the cables, which is very small, and the balsa in the fuse, which
is significantly greater(glass too) will generate a differential of
sufficient magnitude that the "devil" will still attack you when you least
expect it. <BR>The best solution that I have observed is to put the servos
in the stabs. Short of this, I have been using servos mounted just at the
L.E. of the stab and using a very short pushrod(approx. 6"). My current
thinking is that I will still mount the servo in the same area and go with
cables.Very light and direct. As regards Kevlar, I currently have a
pattern practise ship that I do almost all of my flying with that has
kevlar on the rudder and it has two years of mucho sequences to it's
credit with no apparent wear or abrasions to the thread. At this point in
time I have still not acquired the necessary intestinal fortitude to use
kevlar on the elevator. <BR>Georgie
<P>Amir Neshati wrote:
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<FONT face=Arial><FONT size=-1>Pull-pull will eliminate the trim
change...</FONT></FONT> <FONT face=Arial><FONT
size=-1>Amir</FONT></FONT>
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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=natpenton@centurytel.net
href="mailto:natpenton@centurytel.net">Nat Penton</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> Monday, November 24, 2003
7:24 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> CTE</DIV> <FONT
face=Arial><FONT size=-1>Gray what is the CTI for balsa ? I have
carbon push rods / balsa fuse and my elev trim moves around
considerably. I suppose it is because of humidity variation between
the shop and outdoors ?? The pushrods are 50"
long.
NatPenton</FONT></FONT></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>