X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 23 Jan 2010 15:20:21 -0500 Message-ID: X-Original-Return-Path: Received: from imr-mb02.mx.aol.com ([64.12.207.163] verified) by logan.com (CommuniGate Pro SMTP 5.3.1) with ESMTP id 4092590 for lml@lancaironline.net; Fri, 22 Jan 2010 18:14:24 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.207.163; envelope-from=CavittP@aol.com Received: from imo-ma01.mx.aol.com (imo-ma01.mx.aol.com [64.12.78.136]) by imr-mb02.mx.aol.com (8.14.1/8.14.1) with ESMTP id o0MNDeof005150 for ; Fri, 22 Jan 2010 18:13:40 -0500 Received: from CavittP@aol.com by imo-ma01.mx.aol.com (mail_out_v42.5.) id q.c21.65b319c6 (43889) for ; Fri, 22 Jan 2010 18:13:38 -0500 (EST) Received: from smtprly-dc02.mx.aol.com (smtprly-dc02.mx.aol.com [205.188.170.2]) by cia-dc05.mx.aol.com (v127.7) with ESMTP id MAILCIADC052-d35b4b5a311824f; Fri, 22 Jan 2010 18:13:37 -0500 Received: from magic-m22.mail.aol.com (magic-m22.mail.aol.com [172.20.22.195]) by smtprly-dc02.mx.aol.com (v127.7) with ESMTP id MAILSMTPRLYDC024-d35b4b5a311824f; Fri, 22 Jan 2010 18:13:28 -0500 From: cavittp@aol.com X-Original-Message-ID: <16658.2a9b2a95.388b8b18@aol.com> X-Original-Date: Fri, 22 Jan 2010 18:13:28 EST Subject: Re: [LML] Re: Automatic header tank feeder X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_16658.2a9b2a95.388b8b18_boundary" X-Mailer: AOL 9.1 sub 5009 X-AOL-ORIG-IP: 72.207.41.51 X-AOL-IP: 172.20.22.195 X-Spam-Flag:NO X-AOL-SENDER: CavittP@aol.com --part1_16658.2a9b2a95.388b8b18_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit My Lancair-235/320 has a float switch in the header tank which provides the ground for the control circuit of a relay that activates a pair of Facet pumps which transfers fuel from the wing tanks. If the circuit is energized, the pumps come on when the level in the header reaches around 10.5 gallons and then turns off when the level comes up to about 11.5 gallons and cycles between those two levels. Whenever the demand calls for an activation of the system, a light illuminates adjacent to the switch labeled AUTO FUEL. When the wing tanks are dry, the light remains illuminated and there is a loud audible "rattling" of the transfer pumps which prompts me to turn off the system. Most of the time I use the above described automatic fuel transfer system, but I have the capability of opening an interconnect valve which allows for transferring all the wing fuel to the header by either transfer pump via separate pump switches, or I can feed the engine directly from the wings via a fuel selector valve and opening the interconnect valve. All 54-gallons (except for about a pint of fuel per side below the wing finger strainers) are usable. 12-gallons in the header and 21/21 in the wings. Pete Cavitt - N320PL Lancair 235/320 619-701-0784 Cell cavittp@aol.com _www.petecavitt.com_ (http://www.petecavitt.com) --part1_16658.2a9b2a95.388b8b18_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

My Lancair-235/320 has a float switch in the header tank which provid= es the=20 ground for the control circuit of a relay that activates a pair of Facet= pumps=20 which transfers fuel from the wing tanks. If the circuit is=20 energized, the pumps come on when the level in the header reaches around= 10.5=20 gallons and then turns off when the level comes up to about 11.5 gallons= and=20 cycles between those two levels. Whenever the demand calls for an=20 activation of the system, a light illuminates adjacent to the switch label= ed=20 AUTO FUEL. When the wing tanks are dry, the light remains illuminate= d and=20 there is a loud audible "rattling" of the transfer pumps which prompts me= to=20 turn off the system.

Most of the time I use the above described automatic fuel transfer sy= stem,=20 but I have the capability of opening an interconnect valve which allows fo= r=20 transferring all the wing fuel to the header by either transfer pump via= =20 separate pump switches, or I can feed the engine directly from the wings= via a=20 fuel selector valve and opening the interconnect valve.

All 54-gallons (except for about a pint of fuel per side below the wi= ng=20 finger strainers) are usable. 12-gallons in the header and 21/21 in= the=20 wings. =20

Pete Cavitt - N320PL
Lancair=20 235/320
619-701-0784 Cell
cavittp@aol.com
www.petecavitt.com

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