X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao106.cox.net ([68.230.241.40] verified) by logan.com (CommuniGate Pro SMTP 5.3.1) with ESMTP id 4083387 for flyrotary@lancaironline.net; Fri, 15 Jan 2010 01:12:27 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.40; envelope-from=alventures@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao106.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20100115061150.QMZK18268.fed1rmmtao106.cox.net@fed1rmimpo01.cox.net> for ; Fri, 15 Jan 2010 01:11:50 -0500 Received: from BigAl ([72.192.128.205]) by fed1rmimpo01.cox.net with bizsmtp id ViBr1d0034S1t5C03iBr3t; Fri, 15 Jan 2010 01:11:51 -0500 X-VR-Score: 0.00 X-Authority-Analysis: v=1.1 cv=4cmh2gL1a6RJOvq2diO5/mV5P7W7DelkioqUudxRLMU= c=1 sm=1 a=Vegc0WxVmH5BHtpNDyThtA==:17 a=s7-07-E6_AYoejhLPqcA:9 a=S4zVBKGXyMNOKA_3H045wDrIgvAA:4 a=7r1NtxRCVOS3CgirRdAA:9 a=EWK9_g0XjwSM9IZmrAQA:7 a=bespRzLWKDwb8dwq99VCmDevFhAA:4 a=Vegc0WxVmH5BHtpNDyThtA==:117 X-CM-Score: 0.00 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Scoops Date: Thu, 14 Jan 2010 22:13:21 -0800 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0012_01CA9566.C87BF490" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6856 thread-index: AcqVYimOI2QIi6qFQbGFF5G/C2Ad7wARrFMg X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0012_01CA9566.C87BF490 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Thomas, Nice research. I found my notes on inclined radiators, they state 1. 0-20/30* will decrease cooling and increase drag. 2. Over 30* things improve. 3. At approx 55* cooling effectiveness is 30% greater than non-inclined = rads and drag is less by 20%. =20 George; do you have the source for that info? It may be a good idea to verify this information. I don't recall the specifics; but what I do = recall is that the conclusion was configuration dependant, and should not be = taken as generally applicable. Sorry, but I don't remember what the factors = were; maybe something about the configuration of the core. Or maybe my memory just isn't right. Worth checking. All ------=_NextPart_000_0012_01CA9566.C87BF490 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Thomas,

Nice research.

I found my notes on inclined radiators, they state

1. 0-20/30* will decrease cooling and increase drag.

2. Over 30* things improve.

3. At approx 55* cooling effectiveness is 30% greater than non-inclined = rads

and drag is less by 20%.

 

George; do = you have the source for that info? It may = be a good idea to verify this information. =  I don’t recall the specifics; but what I do recall is that the conclusion was configuration dependant, and should not be taken as generally = applicable.  Sorry, but I don’t remember what the factors were; maybe something = about the configuration of the core.

Or maybe my = memory just isn’t right.  Worth checking.

All

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