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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Tom,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Yes the 19-11 is excellent on the engine. Its sounds different
and low RPMS about 7300 or so. I have been playing with some of them modifying
the prop a little and don’t have anything specific that is better…but
I have a couple things I have done that I like…but they are not repeatable.
Sort of a 1 of a kind prop if you know what I mean.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Depending on your model and conditions the 18.11 and 12 are
really good on the CDI. In the 115deg summertime here in PHX AZ I
actually like the 18-11 it’s a light load and better power in the heat.
The 19-11 is a pretty good load on the engine. You have to be careful to get it
set properly. I’m running 5% oil content in my engines and have excellent
results so far….in the last year. I think the engines run a little cooler
and more consistent without the extra oil. The problem is the needle becomes sensitive,
in some cases very sensitive with the lower oil contents. This is one reason
the min recommended by YS is 10% oil. Its easier to set.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My idea was I wanted to see how long I could go on 5% oil. I
have one engine at about 30gallons (350+ flights) of 5% oil and another at
about 200flights. They are both just humming along awesome….I fly on
pavement all the time, so bearings are not an issue I can go 600+flights before
I change just because. I usually will put a new ring in about 300-400
flights. A ring is like $20. My first CDI is still up on power and doesn’t
need a new ring yet so I’m just running it until I have a problem. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I find the CDI is more consistent and cooler in most cases than
the glow plug version. I don’t have heating issues in the summer here in
PHX so much with the CDI. The Glow version will get temperamental at these high
ambient temps. The CDI doesn’t seem to care. Now I will say normal 30%
heli fuel performance (low vis oil) or the Low Smoke version is the 20% regular
oil. Both work excellent in the engine. I just really like the 5% oil content
is performs best for me…but you have to be a little better on the needle
valve to run the low oil content down below 10%. Takes a little bit of an ear
for the engine.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I usually will break the engine in on the regular low vis oil
30% heli and then about 1-2gallons go to the 5% oil content. I have had extremely
good results this way.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Troy<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>Koenig,
Tom<br>
<b>Sent:</b> Tuesday, August 04, 2009 7:10 PM<br>
<b>To:</b> 'General pattern discussion'<br>
<b>Subject:</b> Re: [NSRCA-discussion] YS170 at 96dB<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-AU style='font-family:"Comic Sans MS";
color:blue'>Hi Chaps,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-family:"Comic Sans MS";
color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-family:"Comic Sans MS";
color:blue'>Any of you running the 19 x 11 on the CDI?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-family:"Comic Sans MS";
color:blue'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-family:"Comic Sans MS";
color:blue'>Thanks….I’m about to order some and was wondering ( I
haven’t flown the engine yet)<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-family:"Comic Sans MS";
color:blue'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><strong><i><span lang=EN-AU style='font-size:13.5pt;
font-family:"Bradley Hand ITC";color:blue'>Tom Koenig</span></i></strong><span
lang=EN-AU style='color:blue'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:blue'> <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='color:blue'>INSTRUMENT & CONTROL
TECHNICIAN<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='color:blue'>ActewAGL <o:p></o:p></span></p>
<p class=MsoNormal><b><span lang=EN-AU style='color:blue'>Telephone</span></b><span
lang=EN-AU style='color:blue'> 02 6248 3428 <o:p></o:p></span></p>
<p class=MsoNormal><b><span lang=EN-AU style='color:blue'>Facsimile</span></b><span
lang=EN-AU style='color:blue'> 02 6248 3482 <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='color:blue'>GPO Box 366 Canberra ACT
2601 <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-AU style='color:blue'><a
href="file:///C:\Documents%20and%20Settings\maackland\Application%20Data\Microsoft\Signatures\www.actewagl.com.au"
title="file:///C:/Documents%20and%20Settings/maackland/Application%20Data/Microsoft/Signatures/www.actewagl.com.au">www.actewagl.com.au</a></span><span
lang=EN-AU><o:p></o:p></span></p>
</div>
<div>
<div class=MsoNormal align=center style='text-align:center'>
<hr size=2 width="100%" align=center>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b>On Behalf Of </b>colin
chariandy<br>
<b>Sent:</b> Wednesday, 5 August 2009 12:08 PM<br>
<b>To:</b> General pattern discussion<br>
<b>Subject:</b> Re: [NSRCA-discussion] YS170 at 96dB</span><o:p></o:p></p>
</div>
<p class=MsoNormal><span lang=EN-AU><o:p> </o:p></span></p>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0>
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<p class=MsoNormal>Wow that's low. I think "Weak signals" is asking
for 96dB so I should'nt have to dial it back much.<o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Thanks much.<br>
<br>
--- On <b>Tue, 8/4/09, AtwoodDon@aol.com <i><AtwoodDon@aol.com></i></b>
wrote:<o:p></o:p></p>
</div>
<blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
From: AtwoodDon@aol.com <AtwoodDon@aol.com><br>
Subject: Re: [NSRCA-discussion] YS170 at 96dB<br>
To: nsrca-discussion@lists.nsrca.org<br>
Received: Tuesday, August 4, 2009, 10:03 PM<o:p></o:p></p>
<div id=yiv1177432575>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>We have been doing some testing here in Sacramento over the last
couple weeks. Looks like 73-7400 on 30% is about the max to make 94db
or slightly less. Make sure the prop tips are clean, not chipped or
dinged. It makes a difference.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Don<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'> <o:p></o:p></span></p>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>In a message dated 8/4/2009 6:58:34 P.M. Pacific Daylight Time,
cchariandy@yahoo.ca writes:<o:p></o:p></span></p>
</div>
<blockquote style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;
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<div>
<p class=MsoNormal>Does anybody know what rpm will pass a noise test for a
YS170 turning 18.1X11? <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>Colin.<o:p></o:p></p>
</div>
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