Return-Path: Received: from fed1rmmtao04.cox.net ([68.230.241.35] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 520176 for flyrotary@lancaironline.net; Sat, 06 Nov 2004 00:46:02 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.35; envelope-from=ALVentures@cox.net Received: from BigAl ([68.107.116.221]) by fed1rmmtao04.cox.net (InterMail vM.6.01.04.00 201-2131-117-20041022) with ESMTP id <20041106054533.TXJS5007.fed1rmmtao04.cox.net@BigAl> for ; Sat, 6 Nov 2004 00:45:33 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Voltage and noise Date: Fri, 5 Nov 2004 21:45:38 -0800 Message-ID: <000001c4c3c3$d88ee920$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C4C380.CA6BA920" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C4C380.CA6BA920 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Al, What are you using for a voltage regulator? -- Kelly Troyer=20 I am using the internal regulator, but I went in and disconnected the internal power connection so it is powered externally by the field = circuit. That way I could wire in a overvoltage protection circuit. Al=20 =20 -------------- Original message from "Chuck" : --------------=20 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_01C4C380.CA6BA920 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Al,

  What are you using for a voltage = regulator?

--
Kelly Troyer

I am using the internal regulator, but I went in and disconnected the = internal power connection so it is powered externally by the field circuit. That way I = could wire in a overvoltage protection circuit.

Al =

 

-------------- Original message from "Chuck" <crayd@cableone.net>: --------------

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.

 

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.

 

For you other guys with = composite airplanes, especially those with the engine in the back (where it is = supposed to beJ), 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.

 

Al

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