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<DIV><FONT face=Arial size=2>Hi Tom,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>are you still @ 14 Tilley Place, McKellar,
A.C.T.2617 ?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ed</FONT></DIV>
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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=Tom.Koenig@actewagl.com.au
href="mailto:Tom.Koenig@actewagl.com.au">Koenig, Tom</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, September 23, 2003 4:09
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: ES Composite Pipe
Repair</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=098240122-23092003><FONT face="Comic Sans MS"
color=#0000ff>Sounds like a "market opening" for you Gray. If you made
it available, I 'd buy it! I first bought one of Ed's pipes not long after he
made them available. It cost me over $500 Australian at the time. It lasted
about 2-5 flights before my inlet got crushed by the teflon coupler, just
behind the aluminium insert. I need a definite fix before I touch
it!!!</FONT></SPAN></DIV>
<DIV><SPAN class=098240122-23092003><FONT face="Comic Sans MS"
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=098240122-23092003><FONT face="Comic Sans MS"
color=#0000ff>If I cant fix it, it will remain as one of my not so smart
modelling choices.</FONT></SPAN></DIV>
<DIV><SPAN class=098240122-23092003><FONT face="Comic Sans MS"
color=#0000ff></FONT></SPAN> </DIV>
<DIV><SPAN class=098240122-23092003><FONT face="Comic Sans MS"
color=#0000ff>Tom</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> Gray E Fowler
[mailto:gfowler@raytheon.com]<BR><B>Sent:</B> Wednesday, 24 September 2003
7:41 AM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Re: ES
Composite Pipe Repair<BR><BR></FONT></DIV><BR><FONT face=sans-serif
size=2>Concerning this repair, there is not a commercially available
adhesive that is going to do the job long term. The adhesive I used on
Wayne's pipe is an aerospace grade epoxy called Hysol 9394, rated at 350F.
AT 350F this epoxy exhibits about 25% of its room temperature strength-and
this is about the best room temperature curing high temp epoxy available-in
short all the stuff such as JB weld is crap at the temperatures we are
talking about. The inlet temp of our mufflers makes for a brutal environment
and unfortunately anything that cures at room temperature just is not going
to do the job very well. In reality Hysol 9394 is borderline. No easy answer
here, and is evident by the constant postings about burned out
inlets....there is a problem with the composite mufflers. Actually
there is an answer, but I do not think our pattern market can afford it.
<BR><BR><BR><BR>Gray Fowler<BR>Principal Chemical Engineer<BR>Composites
Engineering</FONT> <BR><BR><BR>
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<TD><FONT face=sans-serif size=1><B>"Wayne Galligan"
<wgalligan@goodsonacura.com></B></FONT> <BR><FONT
face=sans-serif size=1>Sent by: discussion-request@nsrca.org</FONT>
<P><FONT face=sans-serif size=1>09/23/2003 10:33 AM</FONT> <BR><FONT
face=sans-serif size=1>Please respond to discussion</FONT> <BR></P>
<TD><FONT face=Arial size=1>
</FONT><BR><FONT face=sans-serif size=1>
To: <discussion@nsrca.org></FONT>
<BR><FONT face=sans-serif size=1> cc:
</FONT> <BR><FONT face=sans-serif
size=1> Subject:
Re: ES Composite Pipe
Repair</FONT></TD></TR></TBODY></TABLE><BR><BR><BR><FONT face=Arial
size=2>Hopefully Gray Fowler will see this post. He repaired my pipe
by using a piece of 7/8" aluminum wing tub and used a special high temp
epoxy and some fiberglass. Has held up well all year.</FONT> <BR><FONT
face=Arial size=2> </FONT> <BR><FONT face=Arial size=2>Wayne G.</FONT>
<BR><FONT face="Times New Roman" size=3>----- Original Message -----
</FONT><BR><FONT face="Times New Roman" size=3><B>From:</B> </FONT><A
href="mailto:CCzarnik@arclp.com"><FONT face="Times New Roman" color=blue
size=3><U>Chuck Czarnik</U></FONT></A><FONT face="Times New Roman" size=3>
</FONT><BR><FONT face="Times New Roman" size=3><B>To:</B> </FONT><A
href="mailto:discussion@nsrca.org"><FONT face="Times New Roman" color=blue
size=3><U>discussion@nsrca.org</U></FONT></A><FONT face="Times New Roman"
size=3> </FONT><BR><FONT face="Times New Roman" size=3><B>Sent:</B> Tuesday,
September 23, 2003 10:30 AM</FONT> <BR><FONT face="Times New Roman"
size=3><B>Subject:</B> ES Composite Pipe Repair</FONT> <BR><BR><FONT
face=Arial size=2>I have one of these pipes with a damaged inlet. I
found an aluminum tube that fit inside the inlet almost perfectly and tried
to JB weld it in and clamp from the outside. That lasted about 15-20
flights, and now it leaks like crazy. Is there any kind of epoxy or
other sealant (e.g. high temp silicone) that will hold up better to the
heat? Pipe is used with a YS 140, so it gets pretty hot. I hate
to let this pipe go just yet. Any help appreciated! Chuck</FONT>
<BR><FONT face="Times New Roman" size=3> </FONT> <BR><FONT
face="Times New Roman" size=3> </FONT>
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