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<DIV><FONT face=Arial size=2>Thanks David, <FONT face=Arial size=2>Nedim and
others</FONT></FONT></DIV>
<DIV><FONT face=Arial size=2>The firewall is now cut and fit nicely. It went
better than I expected thanks to your informations. I should have tough about
the book and Dave's website :-)</FONT></DIV>
<DIV><FONT face=Arial size=2>I hope to fly the plane this next
weekend.</FONT></DIV>
<DIV><FONT face=Arial size=2>Xavier</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=davidflynt@earthlink.net href="mailto:davidflynt@earthlink.net">David
Flynt</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=xavier.mouraux@sympatico.ca
href="mailto:xavier.mouraux@sympatico.ca">xavier.mouraux@sympatico.ca</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, June 22, 2003 11:54
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: firewall installation in
fiberglass fuse</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2>Xavier,</FONT></SPAN></DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff size=2>I
usually make a dry run with a piece of light ply to find the shape of the
firewall. I just take my time; the fit of the firewall
is correct when there is no pressure between the fuse and the firewall,
and no large gaps. A millimeter gap around then entire circumference is
what I am looking for. If I make a mistake, then I start over
with another piece of light ply. Once I have a good
shape, I trace it onto the firewall. I find this especially
important with a kit that has a nice carbon fiber honeycomb
firewall.</FONT></SPAN></DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff size=2>I do
the nose ring after the firewall is glued in, and after the engine mount
has been fastened to it. </FONT></SPAN><SPAN
class=084112603-23062003><FONT face=Arial color=#0000ff size=2>When gluing the
firewall to the fuse, I tack it in place on top, bottom, and both sides.
When this is dry, I follow it up with a clean fillet of low viscosity epoxy
and micro balloons. I mix it into a toothpaste consistency,
and clean off excess with the corner of a credit card. I
don't find it necessary to add fiberglass reinforcement, but you
could.</FONT></SPAN></DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2>There is probably more than one way to do this, however I
have always followed the method that is described in Bruce Thomson and Don
Atwood's book "Building a Pattern Plane".</FONT></SPAN></DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2>David Flynt</FONT></SPAN></DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=084112603-23062003><FONT face=Arial color=#0000ff
size=2> </FONT></SPAN></DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org]<B>On
Behalf Of </B>Anne & Xavier<BR><B>Sent:</B> Sunday, June 22, 2003 7:36
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> firewall
installation in fiberglass fuse<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>Hello all expert builders...</FONT></DIV>
<DIV><FONT face=Arial size=2>I have to install a new firewall in the
fiberglass fuse of my Nova and I want to do it right. I have a few
questions.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>What is the more efficient/easy way to
figure the exact contour to cut the firewall?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Once the firewall is properly cut, I am
intending to:</FONT></DIV>
<DIV><FONT face=Arial size=2>Glue a shim behind the backplate</FONT></DIV>
<DIV><FONT face=Arial size=2>Install the engine on the engine
mount</FONT></DIV>
<DIV><FONT face=Arial size=2>Install the nose ring</FONT></DIV>
<DIV><FONT face=Arial size=2>Install the backplate and cone</FONT></DIV>
<DIV><FONT face=Arial size=2>Suspend the plane nose up to locate the
firewall</FONT></DIV>
<DIV><FONT face=Arial size=2>Tape the cone to the fuselage</FONT></DIV>
<DIV><FONT face=Arial size=2>Tack glue the engine mount on the firewall with
CA</FONT></DIV>
<DIV><FONT face=Arial size=2>Glue the firewall with epoxy and fiberglass on
aft face</FONT></DIV>
<DIV><FONT face=Arial size=2>Once dry, remove the engine and engine
mount</FONT></DIV>
<DIV><FONT face=Arial size=2>Add fiberglass on foward face of firewall.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Do I forget something ?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thank you</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Xavier</FONT></DIV>
<DIV><FONT face=Arial
size=2></FONT> </DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>