X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost05.isp.att.net ([207.115.11.55] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTP id 4950075 for flyrotary@lancaironline.net; Mon, 18 Apr 2011 15:24:07 -0400 Received-SPF: none receiver=logan.com; client-ip=207.115.11.55; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-85-145-79.mco.bellsouth.net[98.85.145.79]) by isp.att.net (frfwmhc05) with SMTP id <20110418192332H0500b7m4ue>; Mon, 18 Apr 2011 19:23:33 +0000 X-Originating-IP: [98.85.145.79] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: Finally! The temps are under control! Date: Mon, 18 Apr 2011 15:23:43 -0400 Message-ID: <045C00A7521142C6A7C28D5570BB64C6@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CBFDDC.9AF43840" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acv98zIfeYMRozPiScK79fZ4lNEcsAACNavQ X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CBFDDC.9AF43840 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Tracy, Nothing! It didn't exist! The right nostril, 5.5 inch diameter, and a 3 inch scat tube, which came off the oil cooler inlet, was all the cool air inlet I had coming to the radiator. When I added the 4 inch scat tube from the left nostril, it started to cool. I now have 27 sq inches of opening feeding the oil cooler, a total of 43 sq inches of opening feeding the radiator. The cowl outlets total 110 sq inches. So 70 inches in and 110 inches out. Pressure inside the cowl is running about 5 inches of water. If I found myself in cooler weather, I might be able to make the last cowl exit opening adjustable (cowl flap). With the current and soon expected temps I would never be able to close it, so no pressure to make it adjustable right now. Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Sent: Monday, April 18, 2011 2:05 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Finally! The temps are under control! Hi Bill, I would have thought 4" scat tube would be on the small side. What was it before? Tracy On Mon, Apr 18, 2011 at 9:45 AM, Bill Bradburry wrote: I installed a 4 inch flex tube to bring air from the left nostril over to the radiator and that solved the problem! Water temps climb to around 208-9 or so on take off and then they lower to the mid 190s. Oil is running about 175. Now that I can fly without the fear that I am going to lose the temps, I can concentrate on the checks I need to do during the 40 hour flyoff! Oat was bout 88 degrees. I am flying off a Class C airport, so temps are always high before I take the active. Bill B N249B ------=_NextPart_000_0009_01CBFDDC.9AF43840 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Tracy,

 

Nothing!  It didn’t = exist!

 

The right nostril, 5.5 inch = diameter, and a 3 inch scat tube, which came off the oil cooler inlet, was all the = cool air inlet I had coming to the radiator.  When I added the 4 inch scat = tube from the left nostril, it started to cool.

 

I now have 27 sq inches of opening = feeding the oil cooler, a total of 43 sq inches of opening feeding the = radiator.  The cowl outlets total 110 sq inches.  So 70 inches in and 110 inches out.  Pressure inside the cowl is running about 5 inches of = water.  If I found myself in cooler weather, I might be able to make the last cowl = exit opening adjustable (cowl flap).  With the current and soon expected = temps I would never be able to close it, so no pressure to make it adjustable = right now.

 

Bill B

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy
Sent: Monday, April 18, = 2011 2:05 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Finally! The temps are under control!

 

Hi Bill,
   I would have thought 4" scat tube would be on the = small side.   What was it before?

Tracy

On Mon, Apr 18, 2011 at 9:45 AM, Bill Bradburry <bbradburry@bellsouth.net>= wrote:

I installed a 4 inch flex tube to bring air from the left = nostril over to the radiator and that solved the problem!  Water temps = climb to around 208-9 or so on take off and then they lower to the mid = 190s.  Oil is running about 175.  Now that I can fly without the fear that I = am going to lose the temps, I can concentrate on the checks I need to do during = the 40 hour flyoff!  Oat was bout 88 degrees.

I am flying off a Class C airport, so temps are always high = before I take the active. 

 

Bill B  N249B

 

 

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