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 1128588 for flyrotary@lancaironline.net; Fri, 26 May 2006 01:08:46 -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 <20060526050800112005eolte>; Fri, 26 May 2006 05:08:00 +0000 Received: from [63.157.93.64] by mwebmail20.att.net; Fri, 26 May 2006 05:07:59 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Ammeter/Ivo Date: Fri, 26 May 2006 05:07:59 +0000 Message-Id: <052620060507.16751.44768D2E0005E55E0000416F2160280651019D9B040A05@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_16751_1148620079_0" --NextPart_Webmail_9m3u9jl4l_16751_1148620079_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Bulent, Forgot to note that you need to label one side of the ammeter "pitch increase" and the other side "pitch decrease"......With a single sweep ammeter you would not always know where you were in pitch if you forgot which way your switch was wired ("Now was that up or down for more pitch??")...... -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from keltro@att.net (Kelly Troyer): -------------- 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_16751_1148620079_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Bulent,
   Forgot to note that you need to label one side of the ammeter "pitch increase"
and the other side "pitch decrease"......With a single sweep ammeter you would
not always know where you were in pitch if you forgot which way your switch
was wired ("Now was that up or down for more pitch??")......
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2




-------------- Original message from keltro@att.net (Kelly Troyer): --------------

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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