X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 19 May 2011 16:45:31 -0400 Message-ID: X-Original-Return-Path: Received: from vms173013pub.verizon.net ([206.46.173.13] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTP id 4988819 for lml@lancaironline.net; Thu, 19 May 2011 14:40:20 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.173.13; envelope-from=n5zq@verizon.net Received: from p6520y ([unknown] [173.72.167.62]) by vms173013.mailsrvcs.net (Sun Java(tm) System Messaging Server 7u2-7.02 32bit (built Apr 16 2009)) with ESMTPA id <0LLG00479H5ZCH32@vms173013.mailsrvcs.net> for lml@lancaironline.net; Thu, 19 May 2011 13:39:36 -0500 (CDT) X-Original-Message-id: <135D669C2D7745D9B8D16B671DBE32A3@p6520y> From: "Bill Harrelson" X-Original-To: "Lancair Mailing List" References: In-reply-to: Subject: Re: [LML] Re: Fuel restriction or air? X-Original-Date: Thu, 19 May 2011 14:39:34 -0400 MIME-version: 1.0 Content-type: multipart/alternative; boundary="----=_NextPart_000_0268_01CC1632.927663F0" X-Priority: 3 X-MSMail-priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3508.1109 X-MIMEOLE: Produced By Microsoft MimeOLE V15.4.3508.1109 This is a multi-part message in MIME format. ------=_NextPart_000_0268_01CC1632.927663F0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Nah, sorry Colyn, no real testing. I just blew in both ends and noticed = the difference.=20 Bill Harrelson N5ZQ 320 1,900 hrs N6ZQ IV under construction From: Colyn Case=20 Sent: Thursday, May 19, 2011 11:11 AM To: lml@lancaironline.net=20 Subject: [LML] Re: Fuel restriction or air? Bill,=20 I happen to be putting these valves in now. I talked to the lady at = Andair and got an answer that approximates what you have below. ....However, it would be comforting to have some actual data. Did you = happen to do any testing? e.g. in a 2000 fpm climb you need to lose about 1.5" of mercury per = minute to avoid pressurizing. The worst case would be nearly empty = tanks because more volume of air would have to escape to maintain nearly = neutral pressure. ------=_NextPart_000_0268_01CC1632.927663F0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Nah, sorry Colyn, no real testing. I just blew in both ends and = noticed the=20 difference.
 
Bill Harrelson
N5ZQ 320 1,900 hrs
N6ZQ  IV under construction
 
 
 
 
From: Colyn Case
Sent: Thursday, May 19, 2011 11:11 AM
Subject: [LML] Re: Fuel restriction or = air?
 
Bill,=20
 
I happen to be putting these valves in now.  I talked to the = lady at=20 Andair and got an answer that approximates what you have below.
....However, it would be comforting to have some actual = data.  =20 Did you happen to do any testing?
 
e.g. in a 2000 fpm climb you need to lose about 1.5" of mercury per = minute=20 to avoid pressurizing.  The worst case would be nearly empty tanks = because=20 more volume of air would have to escape to maintain nearly neutral=20 pressure.
 
 
 
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