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<DIV><FONT face=Arial size=2>Mark I did not use support at the end of the wing
tube because the cores came to me sheeted. In this case I let the socket go into
the panel 18" and the tube almost 16". I have about 700 flights with no
problems. If I did have a problem it would be easy to remove a precise amount of
foam and replace with a light weight filler ( SuperFill ). Forget about carbon
strips and use .5oz carbon mat to apply the epoxy to. It will be lighter by
helping controll the amount of adhesive and, most important, provide a
torsionally very stiff wing <U>and</U>
aileron. Regards
Nat</FONT></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=flyintexan@houston.rr.com
href="mailto:flyintexan@houston.rr.com">Mark Hunt</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> Thursday, April 15, 2004 9:16
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> foam core question</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Sirs:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>As a newbie to cutting foam cores, I have a
question regarding how to strengthen the wing panel. Does the preferred
method include attaching some c.f. strips to the inside of the skins?
Should they extend from the root all the way to the tip? I know some
guys feel it is a must to also use a false rib near the end of the tube sleeve
also? I hear that some guys (r u out there Nat?) are confident without
any false rib or c.f. under the skin....?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I cut the cores earlier tonight (to rebuild my 2M
after a mid-air) with the help of a friend, and they turned out just
beautiful. I have a nice plan to machine a drill jig for cutting the
spar tube hole...so that's seems to be solved.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks in advance for the
help...<BR></FONT></DIV>
<DIV><FONT face=Arial size=2> </DIV></FONT>
<DIV><FONT face=Arial size=2>Mark</FONT></DIV>
<DIV><FONT face=Arial size=2><A
href="http://www.geocities.com/markhunt_2000/INSIGHT">www.geocities.com/markhunt_2000/INSIGHT</A></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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