Return-Path: Received: from albatross.mail.pas.earthlink.net ([207.217.120.120] verified) by logan.com (CommuniGate Pro SMTP 4.1.5) with ESMTP id 2630472 for flyrotary@lancaironline.net; Thu, 09 Oct 2003 15:23:45 -0400 Received: from adsl-66-73-195-171.dsl.chcgil.ameritech.net ([66.73.195.171] helo=Barry) by albatross.mail.pas.earthlink.net with smtp (Exim 3.33 #1) id 1A7gNw-0006mt-00 for flyrotary@lancaironline.net; Thu, 09 Oct 2003 12:23:40 -0700 Message-ID: <008901c38e9a$d87a5730$6702020a@Barry> From: "Barry Gardner" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EWP - Success at last? Date: Thu, 9 Oct 2003 14:23:37 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2600.0000 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 It's interesting to note that the 88 liters per minute figure that is the maximum spec for the Davies Craig pump works out to 23.2 gals per minute. Barry Gardner Wheaton, IL ----- Original Message ----- From: "Bill Schertz" To: "Rotary motors in aircraft" Sent: Thursday, October 09, 2003 2:04 PM Subject: [FlyRotary] Re: EWP - Success at last? Ed's spread sheet is the basis for the following note and attached pdf file. At 5600 rpm, he shows 3901 Btu/min being rejected from the Radiators. Using 50-50 EthyleneGlycol-water, I have calculated the flow rate of water through the radiators required to remove this much heat, as a function of the temperature drop across the radiator (which is the temperature rise across the engine). You can see that for a reasonable delta-T you would like to have ~20GPM from the pump. I would be very interested in the actual delta-T that Ed gets on his engine/radiators. Bill Schertz ---------------------------------------------------------------------------- ---- > >> Homepage: http://www.flyrotary.com/ > >> Archive: http://lancaironline.net/lists/flyrotary/List.html >