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<DIV><SPAN class=538254516-19122006>Yup, and you want about 1 square inch of
inlet, or just a little bit more.</SPAN></DIV>
<DIV><SPAN class=538254516-19122006>Dean</SPAN></DIV>
<DIV> </DIV>
<P><FONT face="Times New Roman">Dean Pappas</FONT> <BR><FONT
face="Times New Roman">Sr. Design Engineer</FONT> <BR><FONT
face="Times New Roman">Kodeos Communications</FONT> <BR><FONT
face="Times New Roman">111 Corporate Blvd.</FONT> <BR><FONT
face="Times New Roman">South Plainfield, N.J. 07080</FONT> <BR><FONT
face="Times New Roman">(908) 222-7817 phone</FONT> <BR><FONT
face="Times New Roman">(908) 222-2392 fax</FONT> <BR><FONT
face="Times New Roman">d.pappas@kodeos.com</FONT> </P>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of
</B>Rcmaster199@aol.com<BR><B>Sent:</B> Tuesday, December 19, 2006 10:12
AM<BR><B>To:</B> nsrca-discussion@lists.nsrca.org<BR><B>Subject:</B> Re:
[NSRCA-discussion] Cooling outrunners<BR><BR></FONT></DIV>
<DIV>
<DIV>One way this could be done is to allow enough annular room around the
spinner, completely bypassing the cheeks and chin. You only need about 1/8"
annular opening. Just use a smaller spinner than needed and fashion the
model nose to recess the spinner slightly into the annulus. </DIV>
<DIV> </DIV>
<DIV>I have done that on Temptress (engine powered) with good results.</DIV>
<DIV> </DIV>
<DIV>Use the cheeks and chin to route air to the bats.</DIV>
<DIV> </DIV>
<DIV>MattK</DIV>
<DIV> </DIV>
<DIV>In a message dated 12/19/2006 9:28:10 AM Eastern Standard Time,
bob@toprudder.com writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid">
<DIV><FONT face=Arial><B><I>Chad Northeast
<chad@f3acanada.org></I></B> wrote:</FONT></DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><FONT
face=Arial>The problem with a lot of composite fuse models (Twister
included) is <BR>that the inlets in the chin and cheeks are often right at
the rear or <BR>even behind an outrunner.....so ducting toward them is
very difficult. <BR>I have to agree that a proper ducting system is
crucial for cooling. I <BR>use a very simple short radius 90 bend in a
peice of depron that pulls <BR>air in from the chin, I see about a 20C
rise in temp without it, other <BR>than that I dont really do anything
special. The motor will operate at <BR>up to 170F without complaining so
as long as its 20-30F below that all <BR>is good
:)<BR><BR>Chad</FONT></BLOCKQUOTE></BLOCKQUOTE></DIV>
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