Return-Path: Received: from [65.54.169.165] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2908352 for flyrotary@lancaironline.net; Sun, 28 Dec 2003 12:40:59 -0500 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 28 Dec 2003 09:40:58 -0800 Received: from 67.24.246.137 by bay3-dav135.bay3.hotmail.com with DAV; Sun, 28 Dec 2003 17:40:58 +0000 X-Originating-IP: [67.24.246.137] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Evap cores Date: Sun, 28 Dec 2003 12:41:00 -0500 MIME-Version: 1.0 X-Mailer: MSN Explorer 7.02.0011.2700 Content-Type: multipart/alternative; boundary="----=_NextPart_001_0001_01C3CD3F.D94B99B0" Message-ID: X-OriginalArrivalTime: 28 Dec 2003 17:40:58.0443 (UTC) FILETIME=[C0AE89B0:01C3CD69] ------=_NextPart_001_0001_01C3CD3F.D94B99B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Damit Tracy, don't get me started thinking about this :-) Has anyone tri= ed using one of these for oil yet? Certainly the pressure should be OK. = Arrrrrgh... Rusty (not flying again soon, but certainly before Tracy's RV-8 ) =20 I am using one for an oil cooler, mounted up in the nose cowl. I have not= yet flown, but cooled great on ground run ups. Never went over 180 in th= e pan even when water temp went to 230. Lonnie Sorry to stir the pot Rusty! But, Glad to hear the evap core is working= well on the ground for oil cooling Lonnie. The main reason I want to u= se one is for the more efficient use of the dynamic pressure available a= t flight speeds. The stock coolers work well but I think they require mo= re CFM to do the job. Minimizing cooling drag (as many of you are tire= d of hearing me preach : ) is largely a mater of minimizing CFM used to d= o the job. =20 When I get the time, I want to correlate the excellent data that Ed has = been sharing with how I think cooling drag works. Some of it is counter= intuitive. For example, minimizing aircraft cooling drag can often me= an increasing the turbulence (drag) through the heat exchanger. Tracy Crook ------=_NextPart_001_0001_01C3CD3F.D94B99B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
 
 
 
Damit Tracy, don= 't get me started thinking about this :-)  Has anyone tried using on= e of these for oil yet?  Certainly the pressure should be OK.&n= bsp; Arrrrrgh...
 
=
Rusty (not flying again soon, but certainly before Tracy's = RV-8 <g>) 
 
 
I am using one for an o= il cooler, mounted up in the nose cowl. I have not yet flown, but cooled = great on ground run ups. Never went over 180 in the pan even when water t= emp went to 230.
Lonnie
=
 
 
<= DIV>Sorry to stir the pot Rusty!   But, Glad to hear the ev= ap core is working well on the ground for oil cooling Lonnie.  = The main reason I want to use one is for the more efficient use of the&n= bsp;dynamic pressure  available at flight speeds.  The stock co= olers work well but I think they require more CFM to do the job.&nbs= p;  Minimizing cooling drag  (as many of you are tired of heari= ng me preach : ) is largely a mater of minimizing CFM used to do the job.=   
 
 When I get the time, I want to correlate the excellent data th= at Ed has been sharing with how I think cooling drag works.  &n= bsp;Some of it is counterintuitive.    For example,  = minimizing aircraft cooling drag can often mean increasing the = turbulence  (drag)  through the heat exchanger.
 
Tracy Crook
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