Return-Path: Received: from corpprd-pxy2.canfor.ca ([198.162.160.3] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 765265 for flyrotary@lancaironline.net; Tue, 01 Mar 2005 15:13:19 -0500 Received-SPF: none receiver=logan.com; client-ip=198.162.160.3; envelope-from=Steve.Bartrim@canfor.com Received: from canformail1.canfor.ca (canformail1.canfor.ca [199.60.193.29]) by corpprd-pxy2.canfor.ca (Build 103 8.9.3p2/NT-8.9.3) with ESMTP id MAA08852 for ; Tue, 01 Mar 2005 12:12:32 -0800 X-MimeOLE: Produced By Microsoft Exchange V6.5.7226.0 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: RE: [FlyRotary] Re: flow measurements Date: Tue, 1 Mar 2005 12:12:32 -0800 Message-ID: <091A2D42FAF91A41B84750D269FC97E72B3124@canformail1.canfor.ca> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: flow measurements Thread-Index: AcUecrSlIkruMT54Q/epMjPEi3KgzAAJ0dwg From: "Bartrim, Todd" To: "Rotary motors in aircraft" Hi Bob; This is a differential pressure device with the dial scaled (square root) to read in flow instead of pressure. It will create a small pressure (flow) loss. These can be accurate, but it is important to ensure a straight run for 10 dia. upstream & 5 downstream. Todd See here: http://www.nciweb.net/liquids.htm My guage is for a 1 1/2 inch pipe and the orifice is around 3/4 inch or so. That may introduce some restriction, but I'm hoping it isn't enough to change the readings too much. This could be used in flight if I ignore the requirement to not change the pipe diameter for a length of 10 diameters. The guage includes a transmitter so that I could get readings remotely.=20 Bob White