X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 19 Jan 2010 06:19:03 -0500 Message-ID: X-Original-Return-Path: Received: from fmailhost04.isp.att.net ([204.127.217.104] verified) by logan.com (CommuniGate Pro SMTP 5.3.1) with ESMTP id 4087322 for lml@lancaironline.net; Mon, 18 Jan 2010 20:43:14 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.217.104; envelope-from=donaldgordon@bellsouth.net Received: from blueskycomputer (adsl-154-138-233.mco.bellsouth.net[72.154.138.233]) by isp.att.net (frfwmhc04) with SMTP id <20100119014236H0400rdu5ce>; Tue, 19 Jan 2010 01:42:36 +0000 X-Originating-IP: [72.154.138.233] From: X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] voltage variation X-Original-Date: Mon, 18 Jan 2010 20:42:38 -0500 X-Original-Message-ID: <41F80EFD946D437A843ADD6D6A4692E8@BlueSkyComputer> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0145_01CA987E.C66094C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6856 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 thread-index: AcqTPnCbsEC9QAiBQOCxIx/256xbIAFaKM4g Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0145_01CA987E.C66094C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable >> The voltage hovers around 14.5v with little load and drops to 12.5=20 or so with a load at cruise =20 Randy, =20 I have had a slightly similar situation on two occasions over my 1500 = hours on my Lancair 320. I am using the split style Cessna master switch in = my panel. I just replaced this switch, again, and my voltage fluctuations disappeared. If you are using this switch, I suggest you try wiggling = the switch around to see if it temporarily fixes your problem (mine did). = If it does, you might consider replacing it ($26 from ACS). I don't = understand why these style switches have this problem. Perhaps corrosion and/or pitting is a problem. For some reason, I only experienced this problem in-flight. Shutting off all of my electrical equipment during my = in-flight diagnostics, however, did not fix the voltage variations. =20 =20 Don ------=_NextPart_000_0145_01CA987E.C66094C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
>> The voltage hovers around = 14.5v with=20 little load and drops to 12.5
or so  with a load at=20 cruise
 
Randy,
 
I have=20 had a slightly similar situation on two occasions over my 1500 hours on = my=20 Lancair 320.  I am using the split style Cessna master switch in my = panel.  I just replaced this switch, again, and my voltage = fluctuations=20 disappeared.  If you are using this switch, I suggest you try = wiggling the=20 switch around to see if it temporarily fixes your problem (mine = did).  If=20 it does, you might consider replacing it ($26 from ACS).  I don't=20 understand why these style switches have this problem.  Perhaps = corrosion=20 and/or pitting is a problem.  For some reason, I only experienced = this=20 problem in-flight.  Shutting off all of my electrical equipment = during my=20 in-flight diagnostics, however, did not fix the voltage=20 variations.
 
 
Don
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