X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc12.worldnet.att.net ([204.127.131.116] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1128599 for flyrotary@lancaironline.net; Fri, 26 May 2006 00:53:59 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.116; envelope-from=keltro@att.net Received: from mwebmail20.att.net ([204.127.135.59]) by worldnet.att.net (mtiwmhc12) with SMTP id <20060526045304112005e3r0e>; Fri, 26 May 2006 04:53:14 +0000 Received: from [63.157.93.64] by mwebmail20.att.net; Fri, 26 May 2006 04:53:03 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Ammeter/Ivo Date: Fri, 26 May 2006 04:53:03 +0000 Message-Id: <052620060453.9858.447689AE0009B35F000026822160280651019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 28 2006) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_9858_1148619183_0" --NextPart_Webmail_9m3u9jl4l_9858_1148619183_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Bulent, When prop is at midpoint of pitch there is essentially no load on the motor. When you add pitch the ammeter needle swings one way (from 0 to ? amps). When you reduce pitch you are reversing polarity of the D.C. motor and it turns opposite direction and loads the ammeter to the opposite side........ -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from Bulent Aliev : -------------- > I need a second opinion on the ammeter setup for the Ivo prop. John > Slade is using the centering kind. I think it should be one sweep > from 0-15 or 0-20A? Anyone else using the same setup, please let me > know the details. > Buly > http://tinyurl.com/dcy36 > > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ --NextPart_Webmail_9m3u9jl4l_9858_1148619183_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Bulent,

When prop is at midpoint of pitch there is essentially no load on the motor.

When you add pitch the ammeter needle swings one way (from 0 to ? amps).

When you reduce pitch you are reversing polarity of the D.C. motor and it

turns opposite direction and loads the ammeter to the opposite side........

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from Bulent Aliev <atlasyts@bellsouth.net>: --------------

> I need a second opinion on the ammeter setup for the Ivo prop. John
> Slade is using the centering kind. I think it should be one sweep
> from 0-15 or 0-20A? Anyone else using the same setup, please let me
> know the details.
> Buly
> http://tinyurl.com/dcy36
>
>
>
>
> --
> Homepage: http://www.flyrotary.com/
> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/

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