X-Virus-Scanned: clean according to Sophos on Logan.com
Return-Path: <rwstracy@gmail.com>
Received: from mail-qy0-f200.google.com ([209.85.221.200] verified)
  by logan.com (CommuniGate Pro SMTP 5.3.2)
  with ESMTP id 4119284 for flyrotary@lancaironline.net; Wed, 10 Feb 2010 08:35:31 -0500
Received-SPF: pass
 receiver=logan.com; client-ip=209.85.221.200; envelope-from=rwstracy@gmail.com
Received: by qyk38 with SMTP id 38so5193qyk.1
        for <flyrotary@lancaironline.net>; Wed, 10 Feb 2010 05:34:54 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=gamma;
        h=domainkey-signature:mime-version:sender:received:in-reply-to
         :references:date:x-google-sender-auth:message-id:subject:from:to
         :content-type;
        bh=WJx1Tv6UZnabDQkgESe3KYQp8VnsvYYZW5UeDz1iB8w=;
        b=fgXhcpic93iwzlvUat792IifZ2OtLccSPOlzQyPbn8l6qnKcr3hLW8r7y5IFCbPk+Y
         cc3P/dgSAr/MVZJSBwSeRSwOgM0vfVhIMSnAukdbborNz1wxz0QeZAZeBua0MlE1DPui
         Jwqetsqv6dMDHyMC6R3knR+GPXKBpWodtuq8o=
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:sender:in-reply-to:references:date
         :x-google-sender-auth:message-id:subject:from:to:content-type;
        b=IfreSO9HcFZA+GxqHdRMAvtp+TmGZEGg8NzpAMAVMRhnkx6Z5eE1yM4VuPqtrwvNml
         6eTjKa+mUGU6y87DaACk64jMjqHwWCeplby210QV9eF4P42nSuTUEvtZxFcGGtVv/Kn0
         BEntxAP/8KC3uykhFb9LSmJsNGVKSekovxRL0=
MIME-Version: 1.0
Sender: rwstracy@gmail.com
Received: by 10.224.65.226 with SMTP id k34mr121629qai.283.1265808894321; Wed, 
	10 Feb 2010 05:34:54 -0800 (PST)
In-Reply-To: <list-4118725@logan.com>
References: <list-4118725@logan.com>
Date: Wed, 10 Feb 2010 08:34:54 -0500
X-Google-Sender-Auth: ab6e711f47c9496b
Message-ID: <1b4b137c1002100534q393641b9xab45fcab7da88282@mail.gmail.com>
Subject: Re: [FlyRotary] Re: rpm vs Power was : Throttle limits was Re: N.A. 
	Renesis to turbo
From: Tracy Crook <tracy@rotaryaviation.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Content-Type: multipart/alternative; boundary=000feae704e07fe48a047f3f19b6

--000feae704e07fe48a047f3f19b6
Content-Type: text/plain; charset=ISO-8859-1

Sun 100 flown at 500 ft.
Top speed on a normally aspirated aircraft is always best at sealevel.
Best fuel economy is reached up high.

Tracy

On Tue, Feb 9, 2010 at 10:45 PM, Mike Wills <rv-4mike@cox.net> wrote:

>  When you guys put out these numbers (RPM, speed, etc...) would also be
> helpful to know at what altitude. I assume at or close to sea level? I
> havent yet made any speed runs at low altitude.
>
> Mike
>
>  *From:* Tracy Crook <tracy@rotaryaviation.com>
> *Sent:* Tuesday, February 09, 2010 5:27 PM
> *To:* Rotary motors in aircraft <flyrotary@lancaironline.net>
> *Subject:* [FlyRotary] Re: rpm vs Power was : Throttle limits was Re: N.A.
> Renesis to turbo
>
> Tracy, if you have the data could you give us the  RPMs you saw at the 205
> and 217.5 air speeds?
>
> Dennis H.
> Renesis RV-7A
> Austin, Tx.
>
> That was 209 and 217.5
>
> the 209 mph speed was with the 2.176 drive turning a 68 - 71 prop with
> engine turning 6300 , mixture leaned to 17 gph.  On other occasions I could
> push it to 6400 at best power mixture burning 20 gph.
>
> The 217.5 mph was with a 2.85 drive turning a 74 - 88 prop with engine
> turning 7250.  I didn't get a good read on the fuel flow but obviously it
> would have been higher.  I remember requesting priority landing after the
> race due to low fuel.
>
> Neither run was done at best power mixture but leaned a few gph less than
> max.
>
> Tracy
>

--000feae704e07fe48a047f3f19b6
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

Sun 100 flown at 500 ft. <br>Top speed on a normally aspirated aircraft is =
always best at sealevel.=A0=A0 Best fuel economy is reached up high.<br><br=
>Tracy<br><br><div class=3D"gmail_quote">On Tue, Feb 9, 2010 at 10:45 PM, M=
ike Wills <span dir=3D"ltr">&lt;<a href=3D"mailto:rv-4mike@cox.net">rv-4mik=
e@cox.net</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">



<div style=3D"padding-left: 10px; padding-right: 10px; padding-top: 15px;" =
name=3D"Compose message area">
<div><font face=3D"Calibri">When you guys put out these numbers (RPM, speed=
, etc...)=20
would also be helpful to know at what altitude. I assume at or close to sea=
=20
level? I havent yet made any speed runs at low altitude.</font></div>
<div><font face=3D"Calibri"></font>=A0</div>
<div><font face=3D"Calibri">Mike</font></div>
<div style=3D"font-family: Tahoma; font-style: normal; font-variant: normal=
; font-weight: normal; font-size: 10pt; line-height: normal; font-size-adju=
st: none; font-stretch: normal;">
<div><br></div>
<div style=3D"background: rgb(245, 245, 245) none repeat scroll 0% 0%; -moz=
-background-clip: border; -moz-background-origin: padding; -moz-background-=
inline-policy: continuous;">
<div><b>From:</b> <a title=3D"tracy@rotaryaviation.com" href=3D"mailto:trac=
y@rotaryaviation.com" target=3D"_blank">Tracy Crook</a> </div>
<div><b>Sent:</b> Tuesday, February 09, 2010 5:27 PM</div><div class=3D"im"=
>
<div><b>To:</b> <a title=3D"flyrotary@lancaironline.net" href=3D"mailto:fly=
rotary@lancaironline.net" target=3D"_blank">Rotary motors in aircraft</a> <=
/div>
<div><b>Subject:</b> [FlyRotary] Re: rpm vs Power was : Throttle limits was=
 Re:=20
N.A. Renesis to turbo</div></div></div></div>
<div><br></div><div><div></div><div class=3D"h5"><font size=3D"3" color=3D"=
black" face=3D"Times New Roman"><span style=3D"font-size: 12pt;">Tracy, if =
you have the data could you give us the=A0=20
RPMs you saw at the 205 and 217.5 air speeds?<br><br>Dennis H. <br>Renesis=
=20
RV-7A<br>Austin, Tx.<br></span></font><br>That was 209 and=20
217.5=A0=A0=A0 <br><br>the 209 mph speed was with the 2.176 drive=20
turning a 68 - 71 prop with engine turning 6300 , mixture leaned to 17=20
gph.=A0 On other occasions I could push it to 6400 at best power mixture=20
burning 20 gph.<br><br>The 217.5 mph was with a 2.85 drive turning a 74 - 8=
8=20
prop with engine turning 7250.=A0 I didn&#39;t get a good read on the fuel =
flow=20
but obviously it would have been higher.=A0 I remember requesting priority=
=20
landing after the race due to low fuel.=A0=A0 <br><br>Neither run was done=
=20
at best power mixture but leaned a few gph less than=20
max.<br><br>Tracy<br></div></div></div>
</blockquote></div><br>

--000feae704e07fe48a047f3f19b6--