Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Thu, 28 Nov 2002 01:02:44 -0500 Message-ID: X-Original-Return-Path: Received: from ncsmtp03.ogw.rr.com ([24.93.67.84] verified) by logan.com (CommuniGate Pro SMTP 4.0.1) with ESMTP id 1885707 for flyrotary@lancaironline.net; Sun, 24 Nov 2002 09:57:43 -0500 Received: from mail5.carolina.rr.com (fe5 [24.93.67.52]) by ncsmtp03.ogw.rr.com (8.12.5/8.12.2) with ESMTP id gAOEvEiZ015711 for ; Sun, 24 Nov 2002 09:57:14 -0500 (EST) Received: from o7y6b5 ([24.25.90.153]) by mail5.carolina.rr.com with Microsoft SMTPSVC(5.5.1877.757.75); Sun, 24 Nov 2002 09:56:58 -0500 X-Original-Message-ID: <000e01c293ca$b0021ac0$1702a8c0@WorkGroup> From: "Ed Anderson" X-Original-To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Pump Curves - with core pressure drop curves X-Original-Date: Sun, 24 Nov 2002 10:03:46 -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 ----- Original Message ----- From: To: "Rotary motors in aircraft" Sent: Sunday, November 24, 2002 5:15 AM Subject: [FlyRotary] Re: Pump Curves - with core pressure drop curves > In a message dated 11/23/2002 11:09:31 PM US Eastern Standard Time, > eanderson@carolina.rr.com writes: > > > This is interesting. I have my coolant pressure gauge after the evaporator > > cores and my pressure decreases by around 5-7 psi when I go from idle to > > 5500 rpm. > > > > Ed Anderson > > > Your gage is on the suction side of the loop. The engine and the cores being > the restriction. Lynn E. Hanover > > >> Homepage: http://www.flyrotary.com/ Right! Also my pressure gauge fitting is on my header tank which "T"s into the main coolant flow channel after the second evaporator core. I expect the "Siponing" effect, as the main flow rushes past the opening to the "T", adds to the decrease in pressure shown by the gauge. Ed