X-Virus-Scanned: clean according to Sophos on Logan.com
Return-Path: <msteitle@gmail.com>
Received: from an-out-0708.google.com ([209.85.132.246] verified)
  by logan.com (CommuniGate Pro SMTP 5.2.0)
  with ESMTP id 2723834 for flyrotary@lancaironline.net; Sun, 10 Feb 2008 18:50:57 -0500
Received-SPF: pass
 receiver=logan.com; client-ip=209.85.132.246; envelope-from=msteitle@gmail.com
Received: by an-out-0708.google.com with SMTP id b2so1012824ana.81
        for <flyrotary@lancaironline.net>; Sun, 10 Feb 2008 15:50:17 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=gamma;
        h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references;
        bh=eC2mBgmXbYsT9aWvszyCKxwZWSRSbPXoHwysXjybckA=;
        b=c+m6jffDUK2TdpBUHD27k9nTNSEYzW6RjO0Pb5/B0h23Q4wbwpTxG3rldAZTxLE1zkGct7WCBGe4NcXBheHeyCDlBAU41WoAAKaksGIbQvheP0wRcfucUrs2hazO9X7CFi7HAnSUI+T21IuwpX9J7Pzgoq5zb1RPtgmY9N8HCZA=
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=message-id:date:from:to:subject:in-reply-to:mime-version:content-type:references;
        b=pBlSe6f7z7TKmvbNgcXEa1lBg3EPHsm3cJG/IcBkDT43aXfyu1eeR71skAMn3WB8Q8H0k/r3IQkI1Yvp7DYA8X/NdaeSwVV2DtPSIDRYXrAaA584SsP1mDykoQCawXvjbo4Fhqmr5AQ51oIjKuYBC+i4omjLOkmMG6uysKCgNNU=
Received: by 10.100.202.9 with SMTP id z9mr33015147anf.16.1202687417415;
        Sun, 10 Feb 2008 15:50:17 -0800 (PST)
Received: by 10.70.20.3 with HTTP; Sun, 10 Feb 2008 15:50:17 -0800 (PST)
Message-ID: <5cf132c0802101550m1c9cdfd4pae77d7790459297a@mail.gmail.com>
Date: Sun, 10 Feb 2008 17:50:17 -0600
From: "Mark Steitle" <msteitle@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Fuel burn
In-Reply-To: <list-2723581@logan.com>
MIME-Version: 1.0
Content-Type: multipart/alternative; 
	boundary="----=_Part_18171_29277323.1202687417409"
References: <list-2723581@logan.com>

------=_Part_18171_29277323.1202687417409
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Al,

Yes, I'm running one of Tracy's 2.85:1.00 boxes.

Mark

On Feb 10, 2008 12:20 PM, Al Gietzen <ALVentures@cox.net> wrote:

>  *Subject:* [FlyRotary] Re: Fuel burn
>
>
>
> Thanks, good data Al. I'm sure that some of the differences we're seeing
> are due to altitude.  So far, I've stayed fairly low (3000-5000').  I may
> try some higher altitude flight soon just to see how it changes my
> performance numbers.  Another difference is that I have a M/T electric
> constant speed prop.  I normally set it to 2150rpm for takeoff.  This allows
> the engine to turn around 7000 rpm, which will account some for the higher
> fuel burn I'm seeing.  My airport is at 520' msl, so there's a 1000'
> difference there from your 1500' msl airport.  Yes, she really accelerates
> down the runway.   I'm usually airborne in about 900-1000'.
>
> Mark
>
> I'm not sure I see how these correlate "set it to 2150rpm for takeoff.
> This allows the engine to turn around 7000 rpm,"; but the big difference
> is that you're putting out more horses than I am.  At 7000 you're likely
> looking at about 300 hp, so 25-26 gph would be expected.  Are you running a
> 2.85 ratio redrive; or something else?
>
> Al
>
>
>

------=_Part_18171_29277323.1202687417409
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Al, <br><br>Yes, I&#39;m running one of Tracy&#39;s 2.85:1.00 boxes.<br><br>Mark&nbsp; <br><br><div class="gmail_quote">On Feb 10, 2008 12:20 PM, Al Gietzen &lt;<a href="mailto:ALVentures@cox.net">ALVentures@cox.net</a>&gt; wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">











<div link="blue" vlink="blue" lang="EN-US">

<div>

<p style="margin-left: 0.5in;"><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">Subject:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;"> [FlyRotary]
Re: Fuel burn</span></font></p>

<p style="margin-left: 0.5in;"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">&nbsp;</span></font></p>

<div>

<div link="blue" vlink="blue">

<div>

<div>

<div bgcolor="#ffffff">

<div>

<p style="margin-left: 0.5in;"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">Thanks, good data Al. I&#39;m sure that some of the
differences we&#39;re seeing are due to altitude.&nbsp; So far, I&#39;ve stayed fairly
low (3000-5000&#39;).&nbsp; I may try some higher altitude flight soon just to see
how it changes my performance numbers.&nbsp; Another difference is that I have
a M/T electric constant speed prop.&nbsp; I normally set it to 2150rpm for
takeoff.&nbsp; This allows the engine to turn around 7000 rpm, which will
account some for the higher fuel burn I&#39;m seeing.&nbsp; My airport is at 520&#39;
msl, so there&#39;s a 1000&#39; difference there from your 1500&#39; msl airport.&nbsp;
Yes, she really accelerates down the runway.&nbsp;&nbsp; I&#39;m usually airborne
in about 900-1000&#39;.&nbsp; <br>
<br>
Mark</span></font></p>

<p><font color="blue" face="Verdana" size="2"><span style="font-size: 11pt; font-family: Verdana; color: blue;">I'm not sure I see how these correlate "</span></font>set
it to 2150rpm for takeoff.&nbsp; This allows the engine to turn around 7000
rpm,"<font face="Verdana" size="2"><span style="font-size: 11pt; font-family: Verdana;">; <font color="blue"><span style="color: blue;">but the big difference is
that you're putting out more horses than I am.&nbsp; At 7000 you're
likely looking at about 300 hp, so 25-26 gph would be expected. &nbsp;Are you
running a 2.85 ratio redrive; or something else?</span></font></span></font></p>

<p><font color="blue" face="Verdana" size="2"><span style="font-size: 11pt; font-family: Verdana; color: blue;">Al</span></font></p>

</div>

</div>

</div>

</div>

</div>

</div>

<p style="margin-left: 0.5in;"><font face="Times New Roman" size="3"><span style="font-size: 12pt;">&nbsp;</span></font></p>

</div>

</div>


</blockquote></div><br>

------=_Part_18171_29277323.1202687417409--