X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 01 Apr 2007 23:47:53 -0400 Message-ID: X-Original-Return-Path: Received: from vms048pub.verizon.net ([206.46.252.48] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 1961525 for lml@lancaironline.net; Sun, 01 Apr 2007 23:30:55 -0400 Received: from jacky0da39824a ([71.111.147.183]) by vms048.mailsrvcs.net (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0JFU00C2ZPR66PA8@vms048.mailsrvcs.net> for lml@lancaironline.net; Sun, 01 Apr 2007 22:30:44 -0500 (CDT) X-Original-Date: Sun, 01 Apr 2007 20:30:34 -0700 From: "Tom Gourley" Subject: Re: [LML] Legacy Useable Fuel X-Original-To: "Lancair Mailing List" Reply-to: "Tom Gourley" X-Original-Message-id: <004501c774d7$46ee1ff0$640610ac@jacky0da39824a> MIME-version: 1.0 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Mailer: Microsoft Outlook Express 6.00.2900.3028 Content-type: multipart/alternative; boundary="----=_NextPart_000_0042_01C7749C.99ED3B90" X-Priority: 3 X-MSMail-priority: Normal References: This is a multi-part message in MIME format. ------=_NextPart_000_0042_01C7749C.99ED3B90 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable "I had my eyes glued on the fuel pressure gage and my hand on the fuel = selector. I thought the fuel pressure would fluctuate in advance of the = tank running dry, but the (metered) pressure went from 11 psi to about 5 = psi in the blink of an eye." I've only run a tank dry one time, and it was intentional. This was a = long time ago in a Grumman Traveler running a Lycoming O-320 at cruise = settings. After the fuel gauge hit empty I listened intently for any = sound that might indicate I was about to run out of fuel. I was = expecting a sputter, miss, surge, something. (Guess I've watched too = many airplane movies.) Instead the engine sound quit like somebody = flipped a switch. Even though I was expecting something to happen the = sharp sudden cutoff caught me by surprise. After a second or so of PIT = (Pilot Induced Turbulence) caused by the pilot being rather startled I = switched tanks, the engine sound immediately returned to normal, and I = landed at a nearby airport that I already had in sight. One other = thing. When I sumped the tanks after refueling the first sample from = the tank I had run dry had quite a number of small particles in it. = This was a rental that I flew fairly often and I never saw that kind of = debris in the fuel sample before or after. Tom Gourley ------=_NextPart_000_0042_01C7749C.99ED3B90 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
"I had my=20 eyes glued on the fuel pressure gage and my hand on the fuel = selector.  I=20 thought the fuel pressure would fluctuate in advance of the tank running = dry,=20 but the (metered) pressure went from 11 psi to about 5 psi in the = blink of=20 an eye."
 
I've only run a tank dry one time, and = it was=20 intentional.  This was a long time ago in a Grumman Traveler = running a=20 Lycoming O-320 at cruise settings.  After the fuel gauge hit empty = I=20 listened intently for any sound that might indicate I was about to run = out of=20 fuel.  I was expecting a sputter, miss, surge, something.  = (Guess I've=20 watched too many airplane movies.)  Instead the engine sound quit = like=20 somebody flipped a switch.  Even though I was expecting something = to happen=20 the sharp sudden cutoff caught me by surprise.  After a second or=20 so of PIT (Pilot Induced Turbulence) caused by the pilot being = rather=20 startled I switched tanks, the engine sound immediately returned to = normal, and=20 I landed at a nearby airport that I already had in sight.  One = other=20 thing.  When I sumped the tanks after refueling the = first sample from=20 the tank I had run dry had quite a number of small particles in = it. =20 This was a rental that I flew fairly often and I never saw that kind of = debris=20 in the fuel sample before or after.
 
Tom Gourley
 
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