X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1001800 for flyrotary@lancaironline.net; Tue, 14 Jun 2005 14:27:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=sladerj@bellsouth.net Received: from ibm67aec.bellsouth.net ([65.2.92.43]) by imf22aec.mail.bellsouth.net with ESMTP id <20050614182639.IARU16779.imf22aec.mail.bellsouth.net@ibm67aec.bellsouth.net> for ; Tue, 14 Jun 2005 14:26:39 -0400 Received: from JSLADE ([65.2.92.43]) by ibm67aec.bellsouth.net with ESMTP id <20050614182638.QMEM11273.ibm67aec.bellsouth.net@JSLADE> for ; Tue, 14 Jun 2005 14:26:38 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: fuel pump mounting ( fuel system architecture) Date: Tue, 14 Jun 2005 14:26:38 -0400 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 > > I did an experiment with the pump on a 4 foot bench, and a gas can > > on the > > floor. The pump primed itself with no difficulty. Having said that, > > a > > scenario like this in a plane would be just asking for vapor lock. > > > ----------------------------------------------- > > Hi John, I like your test but do not understand your conclusion. The conclusion wasn't based on the results of the experiment :) It's my understanding that you need to replicate the temperatures and pressures for the experiment to be entirely valid. > 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. John