Return-Path: Received: from fed1rmmtao05.cox.net ([68.230.241.34] verified) by logan.com (CommuniGate Pro SMTP 4.2b6) with ESMTP id 230231 for flyrotary@lancaironline.net; Tue, 29 Jun 2004 01:11:10 -0400 Received: from cx541590d ([68.5.29.159]) by fed1rmmtao05.cox.net (InterMail vM.6.01.03.02 201-2131-111-104-20040324) with SMTP id <20040629051038.OFSG26142.fed1rmmtao05.cox.net@cx541590d> for ; Tue, 29 Jun 2004 01:10:38 -0400 From: "Ron Milligan" To: "Rotary motors in aircraft" Subject: Fuel System Question Date: Mon, 28 Jun 2004 22:01:22 -0700 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" 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) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 In-Reply-To: Importance: Normal Trying to get a few of the details ironed out. I am building an RV7 with a rotary engine. After much thought I decided Tracy Crooks fuel system would work very well. The only other alternative I considered meant buying an Andair fuel valve and they are just too expensive for a manual valve. My question is, if I plumb the transfer line (one tank to the other) into the fuel return line (coming from the engine) will the facet fuel pump have enough pressure to over come the returning fuel? Is the returning fuel under any pressure at all or just flowing back to the tank? I do know I will have to have a check valve to prevent fuel returning to the wrong tank. Thanks in advance. Ron Milligan RV7 QB Fuselage Aliso Viejo CA Thanks to Ed for all the help on the coils.