Return-Path: Received: from [24.116.0.227] (HELO S1.cableone.net) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 499422 for flyrotary@lancaironline.net; Thu, 04 Nov 2004 21:39:01 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.116.0.227; envelope-from=crayd@cableone.net Received: from chuckathlon (unverified [24.117.230.246]) by S1.cableone.net (CableOne SMTP Service S1) with ESMTP id 625829 for ; Thu, 04 Nov 2004 19:40:29 -0700 Return-Path: From: "Chuck" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Voltage and noise Date: Thu, 4 Nov 2004 19:41:25 -0700 Message-ID: <000001c4c2e0$f1d97640$6401a8c0@chuckathlon> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C4C2A6.457A9E40" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.3416 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2739.300 X-Abuse-Info: Send abuse complaints to abuse@cableone.net This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C4C2A6.457A9E40 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable That voltage is OK, but I would not want to see it much above 15V for a long period of time, as it may start gassing, that would shorten life especially if it is a sealed battery. OTOH anything above 14.2 volts does nothing to increase the state of charge. =20 Chuck Dunlap RV6 13B -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al Gietzen Sent: Thursday, November 04, 2004 12:24 PM To: Rotary motors in aircraft Subject: [FlyRotary] Voltage and noise I find that my alternator is maintaining voltage at 14.6-14.8. This seems a bit high, but is it a problem? The only thing I can think of is that it may reduce battery life. =20 For you other guys with composite airplanes, especially those with the engine in the back (where it is supposed to be:-)), and battery in front; are you finding any noise problems in avionics that may be resulting from the EC2 injector/ignition leads? Anticipating the need for some filtering. =20 Al ------=_NextPart_000_0001_01C4C2A6.457A9E40 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
That=20 voltage is OK, but I would not want to see it much above 15V for a long = period=20 of time, as it may start gassing, that would shorten life especially if = it is a=20 sealed battery. OTOH anything above 14.2 volts does nothing to increase = the=20 state of charge.
 
Chuck=20 Dunlap
RV6=20 13B
-----Original Message-----
From: = Rotary motors in=20 aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Al=20 Gietzen
Sent: Thursday, November 04, 2004 12:24 = PM
To:=20 Rotary motors in aircraft
Subject: [FlyRotary] Voltage and=20 noise

I find that my = alternator is=20 maintaining voltage at 14.6-14.8.  This seems a bit high, but is = it a=20 problem?  The only thing I can think of is that it may reduce = battery=20 life.

 

For you other guys = with=20 composite airplanes, especially those with the engine in the back = (where it is=20 supposed to beJ), and=20 battery in front; are you finding any noise problems in avionics that = may be=20 resulting from the EC2 injector/ignition leads?  Anticipating the = need=20 for some filtering.

 

Al

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