X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao105.cox.net ([68.230.241.41] verified) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2347642 for flyrotary@lancaironline.net; Sun, 23 Sep 2007 17:30:06 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.41; envelope-from=dale.r@cox.net Received: from fed1rmimpo02.cox.net ([70.169.32.72]) by fed1rmmtao105.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20070923212928.DJNT23261.fed1rmmtao105.cox.net@fed1rmimpo02.cox.net> for ; Sun, 23 Sep 2007 17:29:28 -0400 Received: from [192.168.1.101] ([72.223.48.245]) by fed1rmimpo02.cox.net with bizsmtp id rxVT1X00m5HQYSo0000000; Sun, 23 Sep 2007 17:29:28 -0400 Message-ID: <46F6DAB0.8090706@cox.net> Date: Sun, 23 Sep 2007 14:29:20 -0700 From: Dale Rogers Reply-To: dale.r@cox.net User-Agent: Thunderbird 2.0.0.6 (Windows/20070728) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: RV-7A Cooling References: In-Reply-To: Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Ed Anderson wrote:

However, when you say inlet temps - do you mean inlet to your ducts or is that the inlet to your throttle body. The reason I ask is 90F seems very high for OAT at 6500 MSL and since you are using that figure to determine your Delta T across your cores, you need to insure that it is correct.

Ed, I'm not that familiar with Dennis's part of the world, but - as hot as the PHX area gets - there are places in Texas and Florida that get hotter on a given day and weather. FFZ (Mesa, AZ) is roughly 1400' elevation. If the ambient temperature at the field is 110 - which it often is,.this time of the year - the temperature at 6500' is ~95F. (And I'm glad to have that *cool* up there.)
Dale R.
COZY MkIV #497 Ch.12