X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost01.isp.att.net ([207.115.11.51] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTP id 4941619 for flyrotary@lancaironline.net; Sat, 09 Apr 2011 15:44:54 -0400 Received-SPF: none receiver=logan.com; client-ip=207.115.11.51; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-85-145-79.mco.bellsouth.net[98.85.145.79]) by isp.att.net (frfwmhc01) with SMTP id <20110409194416H01007vn3oe>; Sat, 9 Apr 2011 19:44:16 +0000 X-Originating-IP: [98.85.145.79] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Principles of Duct Design [FlyRotary] Re: Tracy's Cowling/Cooling Mods Date: Sat, 9 Apr 2011 15:44:17 -0400 Message-ID: <6EF108CF4B164360ABFE170BE48A3ADF@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01CBF6CC.FCA56490" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acv2ytlRc4mSGQrGQRq01Lv7C1tCEwAI5RFg X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0021_01CBF6CC.FCA56490 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Thanks guys! Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Saturday, April 09, 2011 11:28 AM To: Rotary motors in aircraft Subject: [FlyRotary] Principles of Duct Design [FlyRotary] Re: Tracy's Cowling/Cooling Mods Here is an extract from an NACA study on ducts and the effects of heat exchanger cores in a duct and factors important to both. I put a few notes on the side in which I attempt to interpret the significance of some of the findings. But, in my opinion, this it really summarizes what is important in cooling duct design for our applications better than anything else I have found. Ed Edward L. Anderson Anderson Electronic Enterprises LLC 305 Reefton Road Weddington, NC 28104 http://www.andersonee.com http://www.eicommander.com From: Bill Bradburry Sent: Saturday, April 09, 2011 9:33 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Tracy's Cowling/Cooling Mods Here is what he said about them.. Cooling is working OK and when I install the bellmouth inlet rings on the inlets I think it will be in final form. Right now I have what amounts to 5" pitot tubes sticking out of the cowl for inlets. Not good at high angle of attack in climb Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Finn Lassen Sent: Saturday, April 09, 2011 9:25 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Tracy's Cowling/Cooling Mods He just expanded the diameter by 1/4 to 1/2" if I remember correctly. They are still round. Finn On 4/9/2011 9:14 AM, Bill Bradburry wrote: Did anyone happen to get a picture of Tracy's plane at SNF that would show what he has done to modify/improve his cooling inlets? I am in the "design/invent" mode to try and improve my cooling and I would really appreciate some ideas that work. Anyone seen it that could describe the changes? Anything would help! :>) Bill B ------=_NextPart_000_0021_01CBF6CC.FCA56490 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Thanks = guys!

Bill B

From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Saturday, April 09, = 2011 11:28 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Principles of Duct Design [FlyRotary] Re: Tracy's Cowling/Cooling Mods

Here is an extract from an = NACA study on ducts and the effects of heat exchanger cores in a duct and = factors important to both. I put a few notes on the side in which I = attempt to interpret the significance of some of the findings. But, in my = opinion, this it really summarizes what is important in cooling duct design = for our applications better than anything else I have = found.

Ed

Edward L. Anderson
Anderson Electronic Enterprises LLC
305 Reefton = Road
Weddington, = NC 28104
http://www.andersonee.com
http://www.eicommander.com=

From: Bill Bradburry

Sent: = Saturday, April 09, 2011 9:33 AM

To: Rotary motors in aircraft

Subject: [FlyRotary] Re: Tracy's Cowling/Cooling Mods

Here is what he said about = them..

Cooling is working OK and when I install the = bellmouth inlet rings on the inlets I think it will be in final form. = Right now I have what amounts to 5" pitot tubes sticking out of the cowl = for inlets. Not good at high angle of attack in = climb

Bill B

From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Finn Lassen
Sent: Saturday, April 09, = 2011 9:25 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Tracy's = Cowling/Cooling Mods

He just expanded the diameter by 1/4 to = 1/2" if I remember correctly. They are still round.

Finn

On 4/9/2011 9:14 AM, Bill Bradburry wrote:

Did anyone happen to get a picture of Tracy’s plane at = SNF that would show what he has done to modify/improve his cooling inlets? = I am in the “design/invent” mode to try and improve my cooling and I = would really appreciate some ideas that = work.

Anyone seen it that could describe = the changes? Anything would help! = :>)

Bill = B

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