X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rwcrmhc12.comcast.net ([216.148.227.85] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1001953 for flyrotary@lancaironline.net; Tue, 14 Jun 2005 15:53:08 -0400 Received-SPF: none receiver=logan.com; client-ip=216.148.227.85; envelope-from=jesse@jessfarr.com Received: from office5 (pcp04959909pcs.midval01.tn.comcast.net[68.59.199.44]) by comcast.net (rwcrmhc12) with SMTP id <20050614195223014008me2ie>; Tue, 14 Jun 2005 19:52:24 +0000 Message-ID: <012a01c5711a$7e7dcff0$057ba8c0@farr.com> From: "jesse farr" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: fuel pump mounting ( fuel system architecture) Date: Tue, 14 Jun 2005 15:51:45 -0400 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 I agrees with that, unless you are flying that bench around with that particular fuel up to 15,000' or so on hot and cool days. All that shows is it slurps up the fuel from a 4' height on that bench on that day, time and temperature. Some of the soob folks constantly check the vapor pressure of their mogas to be sure they have some form of consistency. Might not be a bad idea. At least, if you got gas just jumping up and down to percolate off, you would kinda know you are not going to get it picked up much at all. jofarr, soddy tn ----- Original Message ----- From: "John Slade" > >> If the pump will prime with a 4 foot negative head that sounds good to >> me. > But this only proves it works on the bench under atmospheric pressure and > ambient temperature.