X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA02.emeryville.ca.mail.comcast.net ([76.96.30.24] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2771030 for flyrotary@lancaironline.net; Fri, 29 Feb 2008 11:49:46 -0500 Received-SPF: none receiver=logan.com; client-ip=76.96.30.24; envelope-from=gregw@onestopdesign.biz Received: from OMTA13.emeryville.ca.mail.comcast.net ([76.96.30.52]) by QMTA02.emeryville.ca.mail.comcast.net with comcast id vUVU1Y00617UAYkA202H00; Fri, 29 Feb 2008 16:48:34 +0000 Received: from gregoryii ([24.6.40.29]) by OMTA13.emeryville.ca.mail.comcast.net with comcast id vUp41Y00B0dkeQQ8Z00000; Fri, 29 Feb 2008 16:49:05 +0000 X-Authority-Analysis: v=1.0 c=1 a=Qb8zsypa-H0A:10 a=P4nk411nsplptnG1INkA:9 a=YhkDw4mjtr25d_kQ8oUA:7 a=zX1Nr9r2kOrr7Ag9cv56TGJhA7MA:4 a=72oxJoRhc8oA:10 a=r-G5OjtgBoBzH8FgXKkA:9 a=yploJYQfsD8luHjfmOkA:7 a=46FTbnS6dn6Elb81Rqq9qsgT_XMA:4 a=4vB-4DCPJfMA:10 a=EzXvWhQp4_cA:10 a=agiDspJIEegA:10 a=AfD3MYMu9mQA:10 Message-ID: <035901c87af3$32e9bdc0$8801a8c0@yosemite.onestopdesign.biz> From: "Greg Ward" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: New (old) guy on list Date: Fri, 29 Feb 2008 08:50:32 -0800 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0356_01C87AB0.24671FB0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0356_01C87AB0.24671FB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageI would also be really interested in seeing some others cooling = solutions. I was told that 40% of the Lancair's drag is in the cooling = drag, and I am contemplating a belly scoop A la' P-51, and have created = controversy about how much that configuration will add to the drag = factor. In other words, I might get great cooling at a slower speed? = Supposedly the P-51 configuration creates enough thrust to overcome = around 90% of the drag created, but I would like to confirm that before = I go through the process of designing and building the damn = thing.......(:-) Call me lazy... Greg Ward 20B Lancair in Progress ----- Original Message -----=20 From: Mike Wills=20 To: Rotary motors in aircraft=20 Sent: Friday, February 29, 2008 7:26 AM Subject: [FlyRotary] Re: New (old) guy on list Well, it's not as beautiful as it once was. Had to add some ugly bumps = for exhaust clearance. Finally threw in the towel on a clean oil cooler = install and added a second scoop and stock RX7 cooler below the rad = inlet. Can I attach pictures here? At the moment it appears during full power ground runs that I have = excess cooling capacity, both oil and water. Never been over 180 on = either. Which brings me to thinking (again) about oil/water heat = exchangers. Has anyone successfully implemented one? If so what are you = using? I may eventually be able to get rid of that second scoop. Mike ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Thursday, February 28, 2008 8:57 PM Subject: [FlyRotary] Re: New (old) guy on list I was on this list years ago when it first started up. Job change = and other issues slowed progress on my project and I unsubscribed.=20 Hey, Mike's Back :-) Good to hear from you again. Can't wait until all the new folks see = that beautiful cowl :-) Cheers, Rusty ------=_NextPart_000_0356_01C87AB0.24671FB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
I would also be really interested in seeing some = others=20 cooling solutions.  I was told that 40% of the Lancair's drag = is in=20 the cooling drag, and I am contemplating a belly scoop A la' P-51, and = have=20 created controversy about how much that configuration will add to the = drag=20 factor.  In other words, I might get great cooling at a slower = speed? =20 Supposedly the P-51 configuration creates enough thrust to overcome = around 90%=20 of the drag created, but I would like to confirm that before I go = through the=20 process of designing and building the damn thing.......(:-)  Call = me=20 lazy...
Greg Ward
20B Lancair in Progress
----- Original Message -----
From:=20 Mike = Wills
Sent: Friday, February 29, 2008 = 7:26=20 AM
Subject: [FlyRotary] Re: New = (old) guy on=20 list

Well, it's not as beautiful as it = once was. Had=20 to add some ugly bumps for exhaust clearance. Finally threw in the = towel on a=20 clean oil cooler install and added a second scoop and stock RX7 cooler = below=20 the rad inlet.
 
 Can I attach pictures = here?
 
 At the moment it appears during = full power=20 ground runs that I have excess cooling capacity, both oil and water. = Never=20 been over 180 on either. Which brings me to thinking (again) about = oil/water=20 heat exchangers. Has anyone successfully implemented one? If so what = are you=20 using? I may eventually be able to get rid of that second = scoop.
 
Mike
----- Original Message -----
From:=20 Russell=20 Duffy
To: Rotary motors in = aircraft=20
Sent: Thursday, February 28, = 2008 8:57=20 PM
Subject: [FlyRotary] Re: New = (old) guy=20 on list

 I was on this list = years ago when=20 it first started up. Job change and other issues slowed progress on = my=20 project and I unsubscribed. 
 
Hey, Mike's Back =20 :-)
 
Good to hear from you again.  Can't = wait until=20 all the new folks see that beautiful cowl = :-)
 
Cheers,
Rusty  
=
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