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<DIV><SPAN class=580134700-15122007><FONT face=Arial color=#0000ff>Just throwing
this out there, but at one time I was told that if you freeze DB wheels, you
could reshape them. What would happen if you froze the pieces of rubber before
cutting and drilling them?</FONT></SPAN></DIV>
<DIV> </DIV>
<P><FONT
size=2>Regards,<BR>Jason<BR>www.jasonshulman.com<BR>www.shulmanaviation.com<BR>www.composite-arf.com</FONT>
</P>
<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>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of </B>Paul
LaChance<BR><B>Sent:</B> Friday, December 14, 2007 7:38 PM<BR><B>To:</B> NSRCA
Mailing List<BR><B>Subject:</B> Re: [NSRCA-discussion] Soft Mounts
(Beam)<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>Lance and others interested,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Find a bet that is bigger than the isolator in
all direction. Mine was for the blade drive on a riding mower. I
cut the pieces to the original dimentions using a scroll saw. The I
drilled the holes in the rubber with a small drill bit and worked my way up to
the right size. It takes SEVERAL times drilling with the correct size
drill bit to actually open the hole properly. The rubber will keep
trying to strech instead of letting the bit drill cleanly. Then, mount
as usual. I have used these home made isolator for about 20 flights with
no sign of wear. Until that time they were cracking or turning into
gummy bears about 1 a day, so every 4 days of flying required all 4 isolators
to be replaced. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Strangly I never had this problem about 10 years
ago. I do not know if they changed the rubber they were made from, but
the new rubber does not last like the old rubber did. Also the ones for
World Engines brand mounts work but are VERY hard and stiff. They shook
the plane terribly and had to be removed after 2 flights. </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Paul</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=patterndude@tx.rr.com href="mailto:patterndude@tx.rr.com">Lance Van
Nostrand</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, December 14, 2007 7:28
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Soft
Mounts (Beam)</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Paul, intersted in more details of how you
fabricated an isolator from a belt.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Still, anyone melting vulcanized rubber has
some serious cooling problems.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>--Lance</FONT></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=plachance@cox.net href="mailto:plachance@cox.net">Paul
LaChance</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, December 14, 2007 6:10
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Soft
Mounts (Beam)</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>I had the same thing happen. Even a new
set just purchased did the same thing. I ended up making my own out
of a belt for a riding mower. The belt was $10 and you could
probably make about 100 isolators out of it. The good thing is it is
designed to take the heat and be break resistant. The cloth molded
into it makes it almost impossible to tear. Just make sure you cut
the piece to shape and drill the holes accurately. I used the home
made isolators at the Triple Tree contest this year. Give it a
try. It seemed to have the damping as the priginal
isolators.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Paul</FONT></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=billt2@verizon.net href="mailto:billt2@verizon.net">Bill
Thompson</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, December 14, 2007
6:47 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Soft
Mounts (Beam)</DIV>
<DIV><BR></DIV>
<DIV><FONT face="MS Serif" size=2>Has anyone had the rubber for these
mounts soften and melt. This is the second time in the last year it
happened.The mounts are MK using Dave Brown VibaDamp 4/C
Isolators.</FONT></DIV>
<DIV><FONT face="MS Serif" size=2>BillT</FONT></DIV>
<P>
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