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Date: Tue, 8 Feb 2005 11:06:09 -0800 (PST)
From: Tom <tomtugan@yahoo.com>
Subject: Re: [FlyRotary] Re: Bad day at the airport - Ellison
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-720690@logan.com>
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That's interesting Russ.  Yes I do believe an excessively small bore-size would represent an airflow issue, even if you can get the same volume air thru it by increasing its velocity.    But let me throw another question in response.   Looking thru the results of the cozy mail-list search tool on 'Ellison', apparently a small number of CozyMKIV flyers are using the Ellison on their 360's,  (Nat, Steve Wright, David Dormier, Marc Zeitlin, and at least one or two more).  My understanding is that even the motor on Paul's bench wouldn't produce more (or much more) power than the 360.   How can the 360's produce their power if that bore-size is an issue?        I've already been seduced, Paul may have 'tried' too many things already. 
 
Tom

Russell Duffy <13brv3@bellsouth.net> wrote:
 Hi Tom,
 
Ken Welter is the one that brought this to my attention when I was thinking of using an Ellison in the past.  The bore size of the Ellison EFS-4-5 is mighty small compared to what most of us are using.  I'm not saying it won't run, but I now agree with Ken that it seems too small to be optimum for power.  It would still be interesting to try.  
 
Rusty
 
 

		
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<DIV>That's interesting Russ.&nbsp; Yes I do believe an excessively small bore-size would represent an airflow issue, even if you can get the same volume air thru it by increasing its velocity.&nbsp;&nbsp;&nbsp; But let me throw another question in response.&nbsp;&nbsp; Looking thru the results of the cozy mail-list search tool on 'Ellison', apparently&nbsp;a small number of CozyMKIV flyers&nbsp;are using&nbsp;the Ellison&nbsp;on their 360's,&nbsp; (Nat, Steve Wright, David Dormier, Marc Zeitlin, and at least one or two more).&nbsp; My understanding is that even&nbsp;the motor on Paul's bench wouldn't produce&nbsp;more (or much more) power than the 360.&nbsp;&nbsp;&nbsp;How can the 360's&nbsp;produce their power if that bore-size is an issue?&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I've already been seduced, Paul may have 'tried' too many things already. </DIV>
<DIV>&nbsp;</DIV>
<DIV>Tom</DIV>
<DIV><BR><B><I>Russell Duffy &lt;13brv3@bellsouth.net&gt;</I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">
<DIV><SPAN class=562190218-08022005><FONT face=Arial color=#ff0000>&nbsp;Hi Tom,</FONT></SPAN></DIV>
<DIV><SPAN class=562190218-08022005></SPAN>&nbsp;</DIV>
<DIV><SPAN class=562190218-08022005><FONT face=Arial color=#ff0000>Ken&nbsp;Welter is the one that brought this to my attention when I was thinking of using an Ellison in the past.&nbsp; The bore size of the Ellison EFS-4-5&nbsp;is mighty small compared to what most of us are using.&nbsp; I'm not saying it won't run, but I now agree with Ken that it seems too small to be optimum for power.&nbsp; It would still be interesting to try.&nbsp; </FONT></SPAN></DIV>
<DIV><SPAN class=562190218-08022005><FONT face=Arial color=#ff0000></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=562190218-08022005><FONT face=Arial color=#ff0000>Rusty</FONT></SPAN></DIV>
<DIV><SPAN class=562190218-08022005><FONT face=Arial color=#ff0000></FONT></SPAN>&nbsp;</DIV>
<DIV><SPAN class=562190218-08022005><FONT face=Arial color=#ff0000></FONT></SPAN>&nbsp;</DIV></BLOCKQUOTE><p>
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