Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Mon, 24 Mar 2003 18:19:12 -0500 Message-ID: X-Original-Return-Path: Received: from ms-smtp-03.southeast.rr.com ([24.93.67.84] verified) by logan.com (CommuniGate Pro SMTP 4.1b1) with ESMTP id 2084836 for flyrotary@lancaironline.net; Mon, 24 Mar 2003 12:30:59 -0500 Received: from mail5.nc.rr.com (fe5 [24.93.67.52]) by ms-smtp-03.southeast.rr.com (8.12.5/8.12.2) with ESMTP id h2OHTnm0029212 for ; Mon, 24 Mar 2003 12:29:49 -0500 (EST) Received: from nc.rr.com ([66.57.26.208]) by mail5.nc.rr.com with Microsoft SMTPSVC(5.5.1877.757.75); Mon, 24 Mar 2003 12:28:29 -0500 X-Original-Message-ID: <3E7F402F.3080200@nc.rr.com> X-Original-Date: Mon, 24 Mar 2003 12:28:15 -0500 From: Ernest Christley User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020826 X-Accept-Language: en-us, en MIME-Version: 1.0 X-Original-To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Sump tank References: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit 13brv3@mchsi.com wrote: > I am planning on having the fuel lines go from both tanks to the fuel > selector valve, then to the fuel sump, then to the pump, then to the > fuel rail, injectors, and finally to the fuel pressure regulator. After > that, is it best to have the unused fuel go back into the approximately > 2 gallon fuel sump, or directly back to one of the fuel strake tanks? > > If you're going to have a 2 gallon fuel sump anyway, I'd return the fuel > to it. Do you actually need the sump for some other reason? If not, > you could eliminate it, and run the fuel back to one or both tanks. > > Cheers, > Rusty > The Delta's 42gal tank is in the rear. It will take somewhere around 6ft of pipe to run the tube back there. Would the tubing and amount of return fuel be small enough that this would be an insignificant weight for the complexity saved, or would I be better off with a sump in this case? -- ----Because I can---- http://home.nc.rr.com/deltabuilder ------------------------