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<DIV><SPAN class=529342011-20092002><FONT face=Arial color=#0000ff size=2>I got
around my concerns about firewall thickness. I used 1/4" Nomex coated with
Carbon fiber. Stronger that 1/4" ply and lighter than 1/8" with the extra
area for gluing. Don't think I'll ever go back to ply.</FONT></SPAN></DIV>
<DIV><SPAN class=529342011-20092002><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=529342011-20092002><FONT face=Arial color=#0000ff
size=2>rgds</FONT></SPAN></DIV>
<DIV><SPAN class=529342011-20092002><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<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>GW<BR><B>Sent:</B>
Friday, September 20, 2002 12:06 PM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> Re: Webra
Bragging<BR><BR></FONT></DIV>
<DIV>
<DIV><FONT face=Arial size=2>Great info Matt. Thanks!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have often thought about using a 1/8" firewall
for weight saving purpose, but most kits call for a 1/4".</FONT></DIV>
<DIV><FONT face=Arial size=2>I say I am going to try it each time, but back
out at the last minute. </FONT></DIV>
<DIV><FONT face=Arial size=2>Might do the 1/8" on the next fiberglass kit with
a homemade Hyde-like mount I have made from the info on Bobs site as
well.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have always thought the pipes were louder
than mufflers, you seem to prove otherwise, at least according to Mike and
Emory regarding the "Stealthness" of your plane. Gotta love
that word Stealth. I plan on using either the Bolly 480 or ES140XL
pipe. </FONT><FONT face=Arial size=2>I have not commited ,yet, to
either one.</FONT></DIV></DIV>
<DIV>Later,<BR>GW<BR>Gerald Williams<BR>Webpage : <A
href="http://www.gwair.com">www.gwair.com</A><BR>Email: <A
href="mailto:gw@gwair.com">gw@gwair.com</A></DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE
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=Rcmaster199@aol.com
href="mailto:Rcmaster199@aol.com">Rcmaster199@aol.com</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, September 19, 2002 7:46
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Webra Bragging</DIV>
<DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 face=Arial size=2
FAMILY="SANSSERIF">Gerald,<BR><BR>My set-up is straight forward as
follows:<BR><BR>Webra 145R, black head, with the standard Macs header. Both
purchased from Piedmont (Lee Davis)<BR><BR>OS/Hatori tuned pipe for the OS
140 RX or EFI. 23 1/4" from the exhaust flange to the first baffle, straight
line<BR><BR>My own soft mount I described in the March K Factor. It is based
on the HYDE mount, is all wood including the beams. Bob Pastorello has some
of the drawings on his web site. I followed his drawings for the absorber
portion. Mine differs in that the beams are glued to the front plate and a
box is built around the case with balsa and lite-ply. A standard HYDE soft
mount is a must if you don't make your own.<BR><BR>I use a ply wood nose
ring of my own design but any standard nose ring will do the job, as long as
it fits<BR><BR>Model is a ZN-Line kit, Alliance. Their construction
technique includes foam sheeting on the Kevlar for stiffness and sound
suppression. This simple technique is extremely effective. You will find
that Lance VanNostrand's and Grey Fowler's (AeroSlave) offerings have a
similar construction. Also, take a look at the new Temptation offered by
Piedmont; Lee Davis describes a similar sandwich in the shell of their
fuselages<BR><BR>My firewall is 1/8: aircraft ply for the front face plus a
1/8" lite ply "U" shaped crutch behind the firewall, extending about 4"
toward the canopy. It keeps the fuselage from drumming in this area just
behind the engine.<BR><BR>Fuel I use is a special blend of Cool Power heli
and standard fuel, to 15% nitro and 19% thinner oil. I have the details on
Ed Hartley's RCPattern page<BR><BR>Props are: take your pick, the
stealthiest is a 15.5x12 apc 4 blade. The model is practically inaudible and
a little spooky to fly because it's too quiet. The rest are about the same
17x12, 16x14 std and N, 16.5x13 std, all apc's. The 16.5x13 was used nearly
exclusively during early running. The engine turns anywhere from 7500 to
8000 r's depending on the prop. It will run faster but does not have to.
Power to burn on the 45 deg up 1 1/2 snap or the figure 9 with 3/2
rolls.<BR><BR>Should you decide on a similar set-up, please contribute your
findings to Ed Hartley's page<BR><BR>Matt Kebabjian<BR><BR><BR><BR><BR>In a
message dated 9/19/2002 7:36:02 AM Eastern Daylight Time,
emorydmd@earthlink.net writes:<BR><BR><BR>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px"
TYPE="CITE">Subj:<B>Re: Webra Bragging </B><BR>Date:9/19/2002 7:36:02 AM
Eastern Daylight Time<BR>From:<A
href="mailto:emorydmd@earthlink.net">emorydmd@earthlink.net</A><BR>Reply-to:<A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>To:<A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR><I>Sent
from the Internet </I><BR><BR><BR><BR>Gerald,</FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF"><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF">Matt's set-up is probably the most quiet I have ever
heard. It makes almost no noise when it's flying. I had a chance to fly
his Alliance and the Webra is a very strong engine. If my Tigers ever fail
me, I think that would be a good choice.</FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF"><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF">Emory.</FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF"><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF"><BR>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px"
TYPE="CITE">----- Original Message ----- <BR><B>From:</B> <A
href="mailto:gw@gwair.com">GW</A> <BR><B>To:</B> <A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>
<BR><B>Sent:</B> Wednesday, September 18, 2002 9:32
PM<BR><B>Subject:</B> Re: Webra Bragging<BR><BR><BR>Mike,</FONT><FONT
lang=0 style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF"><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF">I have very little personal experience with big 2S
engines, but I witnessed yours and Emory Schroters <sp> 2S
equipped planes this weekend at Huntsville , and was truly impressed
with the lack of "noise" these planes made. Truly amazing.</FONT><FONT
lang=0 style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF"><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF">I believe it is a combination of many things that it
took to make these 2 planes this quiet, not just a good muffler, or just
a soft mount, or any one thing. A combo of all is what seems to be the
ticket. Hope to accomplish this myself with my new T2K soon as
well.</FONT><FONT lang=0 style="BACKGROUND-COLOR: #ffffff" face=Arial
color=#000000 size=3 FAMILY="SANSSERIF"><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF">If Matt's is quieter than yours and Emory's, then it
must truly be a extremely quiet setup. </FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=3
FAMILY="SANSSERIF"><BR><BR></FONT><FONT lang=0
style="BACKGROUND-COLOR: #ffffff" face=Arial color=#000000 size=2
FAMILY="SANSSERIF">
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FAMILY="SANSSERIF"><BR></FONT><FONT lang=0
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