X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 04 Jun 2012 07:54:17 -0400 Message-ID: X-Original-Return-Path: Received: from nm18.bullet.mail.bf1.yahoo.com ([98.139.212.177] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with SMTP id 5575606 for lml@lancaironline.net; Sun, 03 Jun 2012 01:56:52 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.212.177; envelope-from=mcmess1919@yahoo.com Received: from [98.139.212.153] by nm18.bullet.mail.bf1.yahoo.com with NNFMP; 03 Jun 2012 05:56:17 -0000 Received: from [98.139.211.203] by tm10.bullet.mail.bf1.yahoo.com with NNFMP; 03 Jun 2012 05:56:16 -0000 Received: from [127.0.0.1] by smtp212.mail.bf1.yahoo.com with NNFMP; 03 Jun 2012 05:56:16 -0000 X-Yahoo-Newman-Id: 965126.95496.bm@smtp212.mail.bf1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: .w81RUoVM1mG52uJ8kiUpWHn50qjwYIiXFG5o_3EY_acQrH uxsjk26zTRXUc_5Tb777hd6QpTX_kvBeieVlI82avjEf.e4gqK7Nk1VHFsZo o9NK.tyFGODPQM5697mz2ud6GFP61kFNNUaT4aC87E4t9L4R1BldyCB4edzY 2tztUilZ5MOzSjSz4MY2TSpHAc1wtm7iy6oBzK.gOHk2RLiwd_NPHQq1Vmiu sr9nzVY.J2DlNQFR7P1lr7AXS5Nygc0fLFvKrHMT.n2sS5.Zrwj_PNPyxWkA erKeLMOtnULxweJSzl2ezbADmt4l9ujydkAe3z42BwAO_FdYyC3lywwUW81g eZwGGuxhFQY8kAzsz.JMstkaTpBfLoORVyRG2thtRUOKaCvTrD.PDh3qOZF8 j9umdoLSa1crc4GAUL0Bd6vL05cM3uOXNdMFTbv_WR6jfgR_oLdvuGLac.do 6bO_t6DI14gUNp1zgwyejO2709CZVFYON7MVxLxq4T6F_qt8vhLeMBMEZdTu UUdCR5T2KPeyEo1Y1_A-- X-Yahoo-SMTP: rK4i7HqswBC7mDE8.sOiWQeO4CeReXc- Received: from StevePC (mcmess1919@98.244.5.145 with login) by smtp212.mail.bf1.yahoo.com with SMTP; 02 Jun 2012 22:56:16 -0700 PDT From: "Steve Colwell" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Re: Cooling Shroud X-Original-Date: Sat, 2 Jun 2012 22:56:08 -0700 X-Original-Message-ID: <03c501cd414d$92ccb970$b8662c50$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_03C6_01CD4112.E66DE170" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Ac1BSgwZnqBeZOfoRjGNMfCVsJIeMQAAvW9A Content-Language: en-us This is a multi-part message in MIME format. ------=_NextPart_000_03C6_01CD4112.E66DE170 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit John, Funny you would ask. I had lunch with Chris Zavatson today. He mentioned that flow thru the inlets is not laminar due to prop turbulence. I was told it was supposed to be laminar by an engineer who should have known. Maybe it would be without prop interference. Steve Colwell From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of John Cox Sent: Saturday, June 02, 2012 10:30 PM To: lml@lancaironline.net Subject: [LML] Re: Cooling Shroud Steve can you illuminate who determined the internal airfoil was "optimized for laminar flow". I have been fascinated with Bowers Induction and properly sized plenum openings. John Cox _____ From: Lancair Mailing List on behalf of Steve Colwell Sent: Fri 6/1/2012 11:12 AM To: lml@lancaironline.net Subject: [LML] Cooling Shroud Gene, My hangar-mate developed the production version of this aluminum inlet back in the 1990's and sold it to James. http://www.romeolima.com/RV8/Cowl.htm As you can see, it is captured by the upper and lower cowls and connected to the plenum with sections of tire tube. The inside is an airfoil optimized for laminar flow. Steve Colwell -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html ------=_NextPart_000_03C6_01CD4112.E66DE170 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable [LML] Cooling Shroud

John,

 

Funny you would ask.  I had lunch with Chris Zavatson = today.  He mentioned that flow thru the inlets is not laminar due = to prop turbulence.  I was told it was supposed to be laminar by an = engineer who should have known.  Maybe it would be without prop = interference.

 

Steve Colwell

 

From:= = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of = John Cox
Sent: Saturday, June 02, 2012 10:30 = PM
To: lml@lancaironline.net
Subject: [LML] Re: = Cooling Shroud

 

Steve can you = illuminate who determined the internal airfoil was "optimized = for laminar flow".  I have been fascinated with Bowers = Induction and properly sized plenum = openings.

 

J= ohn Cox

 

From:= = Lancair Mailing List on behalf of Steve Colwell
Sent: Fri = 6/1/2012 11:12 AM
To: lml@lancaironline.net
Sub= ject: [LML] Cooling Shroud

Gene,

My hangar-mate developed the = production version of this aluminum inlet back
in the 1990's and sold = it to James.  http://www.romeolima.com/R= V8/Cowl.htm
As you can see, it is captured by the upper and lower = cowls and connected to
the plenum with sections of tire tube.  = The inside is an airfoil optimized
for laminar = flow. 

Steve Colwell 



--
For archives = and unsub http://mail= .lancaironline.net:81/lists/lml/List.html

=
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