X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 11 Oct 2007 21:33:19 -0400 Message-ID: X-Original-Return-Path: Received: from [143.85.199.18] (HELO ddcoavsgwhub002.conus.army.mil) by logan.com (CommuniGate Pro SMTP 5.1.12) with ESMTP id 2382177 for lml@lancaironline.net; Thu, 11 Oct 2007 18:40:02 -0400 Received-SPF: softfail receiver=logan.com; client-ip=143.85.199.18; envelope-from=james.gigliotti@us.army.mil X-IronPort-AV: E=Sophos;i="4.21,261,1188777600"; d="scan'208,217";a="53743424" Received: from unknown (HELO DDCOBH101HUB004.nanw.ds.army.mil) ([143.82.248.35]) by ddcoavsgwhub002.conus.army.mil with ESMTP; 11 Oct 2007 22:39:09 +0000 Received: from RUCKBH011000001.nase.ds.army.mil ([155.147.252.91]) by DDCOBH101HUB004.nanw.ds.army.mil with Microsoft SMTPSVC(6.0.3790.1830); Thu, 11 Oct 2007 18:39:19 -0400 Received: from RUCKBE011C8MB03.nase.ds.army.mil ([155.147.252.34]) by RUCKBH011000001.nase.ds.army.mil with Microsoft SMTPSVC(6.0.3790.3959); Thu, 11 Oct 2007 17:38:58 -0500 Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C80C57.836B686B" Disposition-Notification-To: "Gigliotti, James M CTR USA" X-MimeOLE: Produced By Microsoft Exchange V6.5 Subject: Fuel transfer problem on Lancair 320 X-Original-Date: Thu, 11 Oct 2007 17:38:57 -0500 X-Original-Message-ID: <3D198611D82D094D898E5F5CCF22050A01B8CE16@RUCKBE011C8MB03.nase.ds.army.mil> X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: Fuel transfer problem on Lancair 320 Thread-Index: AcgMV4Lcl0/L8eXlT0aN8yzWXZcxsA== From: "Gigliotti, James M CTR USA" X-Original-To: X-Original-Return-Path: james.gigliotti@us.army.mil X-OriginalArrivalTime: 11 Oct 2007 22:38:58.0594 (UTC) FILETIME=[83615020:01C80C57] This is a multi-part message in MIME format. ------_=_NextPart_001_01C80C57.836B686B Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Hello folks, Once again I find myself needing your help. I have a Lancair 320 that transfers fuel from the wings to the header tank, which has the typical sight tube to verify header quantity. Level switches in the header tank typically turn the transfer pumps on as header fuel drops below approximately 5 gallons, and off as the fuel rises to around 8 gallons in the header. On a long cross country flight last weekend I was distressed to observe one cycle where the pumps weren't turned on untill 3 gallons, and another cycle where they didn't turn on until 2.5 gallons. Each time they turned off at only approximately 4.5 gallons. That made me nervous, so I began manually transferring. I wanted to fill the header to around 10 gallons, however I could only get 8 gallons into the header (according to the sight tube). I figured something was wrong with my pumps, and that perhaps they were only transferring as fast as I was burning fuel. As I was considering looking for a place to land (after about 20 minutes of transferring), I observed first my right wing, and then shortly thereafter my left wing ran out of fuel, about 2 hours early. I figure I must have pumped 14 gallons overboard somehow, since I topped off prior to the flight and had ample fuel to complete the flight. 1. Can anyone offer suggestions as to why my transfers are beginning at lower values suddenly? 2. Does anyone have any thoughts as to how I could transfer fuel overboard, even though my header read at max 8 gallons? (Later, on the ground, I pumped the header up to 12 gallons without venting any fuel overboard.) 3. Can anyone point me to a better system, perhaps with a real gage, and a more reliable (accurate) system for automatically transferring fuel? Thanks very much, Jim. LNC2 N91LS, approximately 310 hrs. KEDN James M. Gigliotti=20 Support Contractor (Camber) Concepts & Requirements Directorate Requirements Division, AGSE Fort Rucker, AL 36322=20 Commercial (334) 255-1459=20 DSN 558, FAX 1008=20 ------_=_NextPart_001_01C80C57.836B686B Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Fuel transfer problem on Lancair 320

Hello folks,

Once again I find myself needing your = help.

I have a Lancair 320 that transfers = fuel from the wings to the header tank, which has the typical sight tube = to verify header quantity.  Level switches in the header tank = typically turn the transfer pumps on as header fuel drops below = approximately 5 gallons, and off as the fuel rises to around 8 gallons = in the header.

On a long cross country flight last = weekend I was distressed to observe one cycle where the pumps weren't = turned on untill 3 gallons, and another cycle where they didn't turn on = until 2.5 gallons.  Each time they turned off at only approximately = 4.5 gallons.  That made me nervous, so I began manually = transferring.  I wanted to fill the header to around 10 gallons, = however I could only get 8 gallons into the header (according to the = sight tube).  I figured something was wrong with my pumps, and that = perhaps they were only transferring as fast as I was burning fuel.  = As I was considering looking for a place to land (after about 20 minutes = of transferring), I observed first my right wing, and then shortly = thereafter my left wing ran out of fuel, about 2 hours early.  I = figure I must have pumped 14 gallons overboard somehow, since I topped = off prior to the flight and had ample fuel to complete the = flight.

1.  Can anyone offer suggestions = as to why my transfers are beginning at lower values suddenly?
2.  Does anyone have any thoughts = as to how I could transfer fuel overboard, even though my header read at = max 8 gallons? (Later, on the ground, I pumped the header up to 12 = gallons without venting any fuel overboard.)

3.  Can anyone point me to a = better system, perhaps with a real gage, and a more reliable (accurate) = system for automatically transferring fuel?

Thanks very much,

Jim.
LNC2 N91LS, approximately 310 = hrs.
KEDN

James = M. Gigliotti
Support = Contractor (Camber)

Concepts & = Requirements Directorate
Requirements = Division, AGSE
Fort Rucker, = AL 36322
Commercial = (334) 255-1459
DSN 558, FAX = 1008


------_=_NextPart_001_01C80C57.836B686B--