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<div>Mike, how about a 20X9 so that we could do our own tweeking of pitch and dia??</div>
<div> </div>
<div>Matt</div>
<div> </div>
<div>BTW- A bit surprised you finally took the plunge but glad you did and hopefully you will stay awhile. </div>
<div> </div>
<br>
-----Original Message-----<br>
From: drmikedds@sbcglobal.net<br>
To: nsrca-discussion@lists.nsrca.org<br>
Sent: Thu, 16 Nov 2006 10:53 AM<br>
Subject: Re: [NSRCA-discussion] APC 18.1 x 10W props<br>
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<div><FONT face=Arial size=2>Ryan,</FONT></div>
<div><FONT face=Arial size=2>Yes, but you may need to go to APC online and request it.</FONT></div>
<div><FONT face=Arial size=2>Mike</FONT></div>
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<div style="FONT: 10pt arial">----- Original Message ----- </div>
<div style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=smaragdz@bellsouth.net href="javascript:parent.ComposeTo('smaragdz@bellsouth.net', '');">Ryan Smith</A> </div>
<div style="FONT: 10pt arial"><B>To:</B> <A title=nsrca-discussion@lists.nsrca.org href="javascript:parent.ComposeTo('nsrca-discussion@lists.nsrca.org', '');">'NSRCA Mailing List'</A> </div>
<div style="FONT: 10pt arial"><B>Sent:</B> Wednesday, November 15, 2006 8:51 PM</div>
<div style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] APC 18.1 x 10W props</div>
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<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Mike,</SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </SPAN></FONT></div>
<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Is the 18.5x9.5 available yet?</SPAN></FONT></div>
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<div class=MsoNormal><FONT face=Arial color=navy size=2><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">-Ryan</SPAN></FONT></div>
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<div class=MsoNormal><B><FONT face=Tahoma size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> <A href="javascript:parent.ComposeTo('nsrca-discussion-bounces@lists.nsrca.org', '');">nsrca-discussion-bounces@lists.nsrca.org</A> [mailto:nsrca-discussion-bounces@lists.nsrca.org] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>Dr. Mike Harrison<br>
<B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wednesday, November 15, 2006 5:26 PM<br>
<B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> NSRCA Mailing List<br>
<B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [NSRCA-discussion] APC 18.1 x 10W props</SPAN></FONT></div>
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<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Yeah, Yeah, Yeah.......</SPAN></FONT></div>
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<div class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">----- Original Message ----- </SPAN></FONT></div>
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<div class=MsoNormal style="BACKGROUND: #e4e4e4"><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">From:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=gfowler@raytheon.com href="javascript:parent.ComposeTo('gfowler@raytheon.com', '');">Gray E Fowler</A> </SPAN></FONT></div>
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<div class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">To:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <A title=nsrca-discussion@lists.nsrca.org href="javascript:parent.ComposeTo('nsrca-discussion@lists.nsrca.org', '');">NSRCA Mailing List</A> </SPAN></FONT></div>
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<div class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sent:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Wednesday, November 15, 2006 2:49 PM</SPAN></FONT></div>
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<div class=MsoNormal><B><FONT face=Arial size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Arial">Subject:</SPAN></FONT></B><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> Re: [NSRCA-discussion] APC 18.1 x 10W props</SPAN></FONT></div>
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</SPAN></FONT><FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif">Good God almighty! Mike Harrison on the list! Can Art Wagner be far behind?</SPAN></FONT> <br>
<FONT face=sans-serif size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: sans-serif"><br>
<br>
<br>
Gray Fowler<br>
Senior Principal Chemical Engineer<br>
Radome and Composites Engineering<br>
Raytheon</SPAN></FONT> <br>
<br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt"><A href="javascript:parent.ComposeTo('nsrca-discussion-bounces@lists.nsrca.org', '');">nsrca-discussion-bounces@lists.nsrca.org</A> wrote on 11/15/2006 02:41:42 PM:</SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<br>
<TT><FONT face="Courier New">> Thanks George!</FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> ----- Original Message ----- </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> From: george w. kennie </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> To: NSRCA Mailing List </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Sent: Wednesday, November 15, 2006 12:03 PM</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Subject: Re: [NSRCA-discussion] APC 18.1 x 10W props</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> Welcome to the list Mike!!!!!</FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> ----- Original Message ----- </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> From: Dr. Mike Harrison </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> To: NSRCA Mailing List </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Sent: Wednesday, November 15, 2006 8:31 AM</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Subject: Re: [NSRCA-discussion] APC 18.1 x 10W props</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> Peter,</FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Hi,</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> I am Mike Harrison, I worked with APC to develop these props. Let </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> me tell you the goal of the prop design. It is to fly at a moderate</FONT></TT><br>
<TT><FONT face="Courier New">> to slow constant speed under the noise limit but with good pulling </FONT></TT><br>
<TT><FONT face="Courier New">> performance. Therefore, regarding the rpm, the 8000 is about ideal </FONT></TT><br>
<TT><FONT face="Courier New">> for that prop, turn it much more and you will be above the noise limit. </FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> I find it interesting that you determine whether a prop is adequate </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> by first tacking it. I would think you would fly it first to see if</FONT></TT><br>
<TT><FONT face="Courier New">> it was adequate. I would encourage you to do that first. The OS </FONT></TT><br>
<TT><FONT face="Courier New">> 140 turns it about the same and it flies very well. </FONT></TT></SPAN></FONT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> The whole purpose was to develop a prop that would fly at a </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> deliberate pace at about 150 meters to compete with the electrics. </FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> There is also an 18.5x9.5 which I fly and it turns about 7500 rpm. </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> I like it better than the 18.1x10. I am working on a 19x9 at the moment.</FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Good luck</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Mike</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> From: Peter Pennisi </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> To: 'NSRCA Mailing List' </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Sent: Tuesday, November 14, 2006 5:48 PM</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Subject: [NSRCA-discussion] APC 18.1 x 10W props</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> </FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> I recently purchased some 18.1 x 10W APC props for my DZ160. </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> Apparently there appears to be another version 18.1 x 10.1.</FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Could someone please tell me the difference between both?</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> I tried a quick ground run on this prop (stock) this morning but </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
<TT><FONT face="Courier New">> could barely get 8000 RPM from the engine. I will take advice from a</FONT></TT><br>
<TT><FONT face="Courier New">> member on this list and lop 1/4inch of each blade. What RPM readings</FONT></TT><br>
<TT><FONT face="Courier New">> are people getting who are using either of these props on a YS DZ160 engine?</FONT></TT></SPAN></FONT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Regards,</SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT> <br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> Peter </SPAN></FONT></TT><br>
<TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt">> </SPAN></FONT></TT><FONT face="Courier New" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><br>
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