X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from poplet2.per.eftel.com ([203.24.100.45] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3906745 for flyrotary@lancaironline.net; Fri, 30 Oct 2009 23:38:58 -0400 Received-SPF: none receiver=logan.com; client-ip=203.24.100.45; envelope-from=lendich@aanet.com.au Received: from sv1-1.aanet.com.au (sv1-1.per.aanet.com.au [203.24.100.68]) by poplet2.per.eftel.com (Postfix) with ESMTP id 231A21737A9 for ; Sat, 31 Oct 2009 11:38:19 +0800 (WST) Received: from ownerf1fc517b8 (203.171.92.134.static.rev.aanet.com.au [203.171.92.134]) by sv1-1.aanet.com.au (Postfix) with SMTP id 3E112BEC00B for ; Sat, 31 Oct 2009 11:38:17 +0800 (WST) Message-ID: <223F171C880D421D99AC89BCA59A4EDA@ownerf1fc517b8> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Cooling report Date: Sat, 31 Oct 2009 13:38:19 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0023_01CA5A2F.6893CD40" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-Antivirus: avast! (VPS 091030-0, 10/30/2009), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0023_01CA5A2F.6893CD40 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Al, Looks good, I will certainly consider that when the time comes. Just = goes to show you can't believe all that you hear. George (down under) Oops - intended to attach a photo of the fan installation. Al -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Al Gietzen Sent: Friday, October 30, 2009 3:14 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Cooling report=20 Rino, any comments on the Griffin oil cooler location and inlet = ducting Vs the RX7 oil cooler location and ducting? If oil flow was not the problem it must have been air flow. Jeff If there was not sufficient air flow, then the air outlet temp = would be very high, not very low - unless the temp number is not = correct, or there was a great deal of by-pass flow. Re: Here is my fan installation. It is a 4-blade, pull, high = flow, Spall. The inlet scoop is sealed to the other side of the rad. I = don't know whether it spins in flight when turned off, but there is no = evidence that it does. It works fine after 160 hours in flight. If it is = a concern, one could always use a relay that shorts the leads when = turned off serve as electromagnetic brake. A spinning fan would be more = restrictive to flow being forced through it than one that is stationary = - contrary to one's intuition. Al -------------------------------------------------------------------------= ----- -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0023_01CA5A2F.6893CD40 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 Al,
Looks good, I will certainly consider = that when the=20 time comes. Just goes to show you can't believe all that you = hear.
George (down under)

Oops =96 = intended to=20 attach a photo of the fan installation.

 

Al

 

-----Original=20 Message-----
From: = Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al = Gietzen
Sent: Friday, October 30, 2009 = 3:14=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: Cooling report

 

Rino, = any=20 comments on the Griffin oil cooler location and inlet ducting Vs the = RX7 oil=20 cooler location and ducting?

If=20 oil flow was not the problem it must have been air = flow.

Jeff

If = there was=20 not sufficient air flow, then the air outlet temp would be very = high, not=20 very low =96 unless the temp number is not correct, or there was a = great=20 deal of by-pass flow.

 

Re: = Here is my=20 fan installation.  It is a 4-blade, pull, high flow, Spall. =  The=20 inlet scoop is sealed to the other side of the rad.  I = don=92t know=20 whether it spins in flight when turned off, but there is no = evidence that=20 it does. It works fine after 160 hours in flight. If it is a = concern, one=20 could always use a relay that shorts the leads when turned off = serve as=20 electromagnetic brake.  A spinning fan would be more = restrictive to=20 flow being forced through it than one that is stationary =96 = contrary to=20 one=92s intuition.

 

Al

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Homepage:  http://www.flyrotary.com/
Archive and=20 UnSub:  =20 = http://mail.lancaironline.net:81/lists/flyrotary/List.html
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