Return-Path: Sender: (Marvin Kaye) To: lml Date: Mon, 23 Dec 2002 18:05:14 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m02.mx.aol.com ([64.12.136.5] verified) by logan.com (CommuniGate Pro SMTP 4.0.2) with ESMTP id 1933300 for lml@lancaironline.net; Mon, 23 Dec 2002 10:25:11 -0500 Received: from Sky2high@aol.com by imo-m02.mx.aol.com (mail_out_v34.13.) id q.f6.262e3148 (3842) for ; Mon, 23 Dec 2002 10:25:04 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Mon, 23 Dec 2002 10:25:04 EST Subject: Re: [LML] Re: LCN2 fuel system cross feed, Angier Ames X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_f6.262e3148.2b3884d0_boundary" X-Mailer: AOL 8.0 for Windows US sub 460 --part1_f6.262e3148.2b3884d0_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 12/23/2002 8:03:15 AM Central Standard Time, marv@lancaironline.net writes: > Same old principle, keep it simple.. Don Skeele Angier, Keep it even simpler. As designed, the header feeds the engine pump and, if injected, an inline "boost" pump. Ergo, the only requirement is to keep the header full - thus resulting in 1 hour of flight after a variety of failures (losing fuel via cap or leak, total electrical failure, etc). Every other complex design with valves, check valves, crossovers, interconnections etc. only exist because of a mind set to continue to the destination after some failure when, for safety's sake, plan B should be utilized (land now and fix the problem). KISS = keep the header tank full. Scott Krueger N92EX Re: Don's concern about siphoning from the header tank filler tubes, I did install check valves at the header tank in those tubes. --part1_f6.262e3148.2b3884d0_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 12/23/2002 8:03:15 AM Central Standard Time, marv@lancaironline.net writes:

Same old principle, keep it simple.. Don Skeele 


Angier,

Keep it even simpler.  As designed, the header feeds the engine pump and, if injected, an inline "boost" pump.  Ergo, the only requirement is to keep the header full - thus resulting in 1 hour of flight after a variety of failures (losing fuel via cap or leak, total electrical failure, etc).  Every other complex design with valves, check valves, crossovers, interconnections etc. only exist because of a mind set to continue to the destination after some failure when, for safety's sake, plan B should be utilized (land now and fix the problem).

KISS = keep the header tank full.

Scott Krueger
N92EX

Re:  Don's concern about siphoning from the header tank filler tubes, I did install check valves at the header tank in those tubes. --part1_f6.262e3148.2b3884d0_boundary--