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<DIV>Jeff, how do you increase air velocity around the motor with no increase in model airspeed? </DIV>
<DIV>Here's where our old friend Bernoulli comes in, stage left. </DIV>
<DIV> </DIV>
<DIV>And BTW, the properly designed ENTRY into and EXIT from the ducting really increases the ducting efficiency. </DIV>
<DIV> </DIV>
<DIV>Cheers,</DIV>
<DIV>Matt</DIV> <BR>-----Original Message-----<BR>From: jeffghughes@comcast.net<BR>To: NSRCA Mailing List <nsrca-discussion@lists.nsrca.org>; NSRCA Mailing List <nsrca-discussion@lists.nsrca.org><BR>Sent: Tue, 28 Mar 2006 22:10:39 +0000<BR>Subject: Re: [NSRCA-discussion] Reducing the odds...<BR><BR>
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<DIV>While I agree good ducting can be better than hanging out there, I seriously doubt if most modelers do any better than hanging it out. Plus I think an outrunner all polished up woul look pretty cool with the fuse faired into it. </DIV>
<DIV> </DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: "Dean Pappas" <d.pappas@kodeos.com> <BR>
<DIV><SPAN class=504561818-28032006><FONT face=Arial color=#0000ff size=2>Good ducting is better than hanging in the breeze, and a whole lot prettier.</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV><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> </DIV>
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<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>jeffghughes@comcast.net<BR><B>Sent:</B> Tuesday, March 28, 2006 12:49 PM<BR><B>To:</B> NSRCA Mailing List; NSRCA Mailing List<BR><B>Subject:</B> Re: [NSRCA-discussion] Reducing the odds...<BR><BR></FONT></DIV>
<DIV>I was thinking about this the other day. Why don't we change the fuse design to stick the motor out in the breeze? Kind of like a WWI rotary or a foamy. Seems like we're trying hard to keep the planes identical in design between electrics and fuel for no apparent reasons</DIV>
<DIV> </DIV>
<DIV>Also now that huge props and braking are available, will fuselages slim down some?</DIV>
<DIV> </DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">-------------- Original message -------------- <BR>From: "Dean Pappas" <d.pappas@kodeos.com> <BR><BR>> Hi Earl, <BR>> This sounds a whole lot loke the similar duct I have placed around my AXI <BR>> outrunner. <BR>> It is astounding how much a difference a real cooling duct makes. <BR>> Fans inside the motor are a band-aid. The top-down solution is good airflow <BR>> management. <BR>> <BR>> The picture is of the ductwork in the Funtana I am doing for FM. <BR>> The subject is modifying the plane for high-performance electric. (high heat and <BR>> RF generation) <BR>> The airbox in the front of the cowl encloses the front of the motor, <BR>> and feeds the internals and the 1/8" gap in the duct with high pressure air. <BR>> <BR>> <BR>> later, <BR>> Dean <BR>> <BR>> Dean Pappas <BR>> </BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></! html=""></DIV><!-- end of AOLMsgPart_3_aec4f8b8-9de4-43e2-bb47-06284fcf57d8 -->
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<TD class=FieldValue>Dean Pappas <d.pappas@kodeos.com></TD></TR>
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<TD class=FieldValue>NSRCA Mailing List <nsrca-discussion@lists.nsrca.org></TD></TR>
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<TD class=FieldValue>Re: [NSRCA-discussion] Reducing the odds...</TD></TR>
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<TD class=FieldLabel>Date:</TD>
<TD class=FieldValue>Tue, 28 Mar 2006 18:19:00 +0000</TD></TR></TBODY></TABLE></DIV>
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