<html><body bgcolor="#FFFFFF"><div>Just curious, where do you guys get the end grain balsa? I can't imagine you're cutting your own?</div><div><br></div><div>Thx, Jerry<br><br>Sent from my iPhone</div><div><br>On Apr 13, 2010, at 11:46 PM, "Wayne Galligan" <<a href="mailto:wcgalligan@att.net">wcgalligan@att.net</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
<div><font face="Arial">I'll ditto Bob's response on the 1/64 over 1/4"
endgrain. More surface area there to glue to fuse. I use a lt. ply ring
behind the soft mount to hold the blind nuts. Works....gerrrrrrrr...
ate!</font></div>
<div><font face="Arial"></font> </div>
<div><font size="2" face="Arial">Wayne Galligan<br>Skyblazers R/C Club<br>Waxahachie
Texas</font></div>
<blockquote style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><b>From:</b>
<a title="getterflash@yahoo.com" href="mailto:getterflash@yahoo.com">Bob
Kane</a> </div>
<div style="FONT: 10pt arial"><b>To:</b> <a title="nsrca-discussion@lists.nsrca.org" href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</a>
</div>
<div style="FONT: 10pt arial"><b>Sent:</b> Tuesday, April 13, 2010 9:29
AM</div>
<div style="FONT: 10pt arial"><b>Subject:</b> Re: [NSRCA-discussion] Composite
Firewalls</div>
<div><br></div>
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<td valign="top">I have had very good results with a firewall made of
1/64" plywood laminated on both sides of 1/4" end-grain balsa using
polyurethane glue. Lightly spray water on the balsa, smear the
poly glue on the balsa and a light, even coat of glue on the plywood.
Press everything together, lay a sheet of wax paper on a flat surface,
set the firewall on the paper, cover with another sheet of wax paper,
and stack a LOT of books on top. The poly glue will foam and penetrate
the plywood, the weight is necessary to keep the plywood from being
pushed away from the balsa by the foaming glue. The resulting
structure is very light, very strong, and offers a wide gluing surface
inside the fuselage.<br><br>My setup uses a Hyde mount, so I glued 3/32"
plywood disks approximately 3/4" diameter to hold the blind nuts on the
backside of the fire wall. Nothing is needed on the front, the
Hyde mount has a large back surface to spread the load.<br><br>I have
been flying this in my YS160DZ powered Temptation for 4 seasons now
without any problems.<br><br>Bob
Kane<br><a href="mailto:getterflash@yahoo.com">getterflash@yahoo.com</a><br><br>--- On <b>Tue, 4/13/10, colin
chariandy <i><cchariandy@yahoo.ca></i></b> wrote:<br>
<blockquote style="BORDER-LEFT: rgb(16,16,255) 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><br>From:
colin chariandy <cchariandy@yahoo.ca><br>Subject:
[NSRCA-discussion] Composite Firewalls<br>To: "NSRCA Mailing List"
<nsrca-discussion@lists.nsrca.org><br>Date: Tuesday, April 13,
2010, 9:57 AM<br><br>
<div id="yiv1731158857">
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<div>Can anyone advise me on the appropriate composite panel
size and material for Glow powered firewalls? My Xigris came
with 1/8 ply that I'd like to replace. </div>
<div> </div>
<div>Colin.</div></td></tr></tbody></table><br>
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