X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Sender: To: lml Date: Wed, 07 Feb 2007 13:59:55 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m25.mx.aol.com ([64.12.137.6] verified) by logan.com (CommuniGate Pro SMTP 5.1.6) with ESMTP id 1821634 for lml@lancaironline.net; Wed, 07 Feb 2007 11:46:11 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.6; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m25.mx.aol.com (mail_out_v38_r7.6.) id q.cf7.9027e0e (58808) for ; Wed, 7 Feb 2007 11:38:07 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: X-Original-Date: Wed, 7 Feb 2007 11:38:05 EST Subject: Re: [LML] Re: Summary - when to turn on the fuel boost pump X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1170866285" X-Mailer: 9.0 Security Edition for Windows sub 5358 X-Spam-Flag: NO -------------------------------1170866285 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 2/7/2007 9:45:17 A.M. Central Standard Time, marv@lancaironline.net writes: you forgot one more factor in the myriad of answers, the duke's fuel pump is located inside the cockpit, therefore is pressurized, pressurization in a IV-P has a factor in the fuel flow, in my IV-P I believe its the reason for the acute engine power loss when shifting tanks, the only way to avoid it is to go high in the boost prior to switching, if you get a leak in the fuel pump like it occurred to me you loose pressure. This event never happens at low altitude, therefor my small brain tells me it pressure related. One more thing to consider. Andres, Doesn't cabin pressurization just maintain a cabin altitude below 8000 feet, but no greater than sea level? If so, wouldn't that be the same as flying unpressurized below 8000 feet? Scott Krueger AKA Grayhawk Lancair N92EX IO320 SB 89/96 Aurora, IL (KARR) A man has got to know his limitations. -------------------------------1170866285 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 2/7/2007 9:45:17 A.M. Central Standard Time,=20 marv@lancaironline.net writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>you=20 forgot one more factor in the myriad of answers, the duke's fuel pump=20 is
located inside the cockpit, therefore is pressurized, pressurization= in=20 a IV-P
has a factor in the fuel flow, in my IV-P I believe its the reas= on=20 for the
acute engine power loss when shifting tanks, the only way to av= oid=20 it is to go
high in the boost prior to switching, if you get a leak in=20= the=20 fuel pump like
it occurred to me you loose pressure. This event never=20 happens at low
altitude, therefor my small brain tells me it pressure=20 related. One more thing
to consider.
Andres,
 
Doesn't cabin pressurization just maintain a cabin altitude below 8000=20 feet, but no greater than sea level?  If so, wouldn't that be the same=20= as=20 flying unpressurized below 8000 feet?=20
 
Scott Krueger=20 AKA Grayhawk
Lancair N92EX IO320 SB 89/96
Aurora, IL (KARR)

A m= an=20 has got to know his limitations.
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