X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mtiwmhc13.worldnet.att.net ([204.127.131.117] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTP id 1002819 for flyrotary@lancaironline.net; Wed, 15 Jun 2005 10:20:43 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.131.117; envelope-from=keltro@att.net Received: from 204.127.135.63 ([204.127.135.63]) by worldnet.att.net (mtiwmhc13) with SMTP id <2005061514195811300pcjp2e>; Wed, 15 Jun 2005 14:19:58 +0000 Received: from [209.247.222.98] by 204.127.135.63; Wed, 15 Jun 2005 14:19:56 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: planetary gear ratios Date: Wed, 15 Jun 2005 14:19:56 +0000 Message-Id: <061520051419.366.42B0390C0003B9330000016E2160376223019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Feb 14 2005) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_366_1118845196_0" --NextPart_Webmail_9m3u9jl4l_366_1118845196_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Ernest, Afterthought........Ideal ratio for that 8500 rpm P port engine !! -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from keltro@att.net (Kelly Troyer): -------------- Ernest, Sounds like you have youself a 3.17-1 redrive !! -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from Ernest Christley : -------------- > Tracy Crook wrote: > > > The formula is not the same for both locked ring gear and locked > > planetary gear. This formula is for the locked ring gear and you > > probably have the locked planetary. Remove the 1 from the equation > > and it will come out right for yours. > > > > Tracy (making a lot of assumptions about your drive) > > > > I ran across some information in one of the scientific newsgroups > > on how > > to calculate the gear ratio of a planetary gear set. > > > > ratio = 1 + r / s > > > > where: r = number of ring gear teeth > > s = number of sun gear teeth. > > > > The ring gear is actually locked. The ring gear is pressed into the > housing. > --NextPart_Webmail_9m3u9jl4l_366_1118845196_0 Content-Type: text/html Content-Transfer-Encoding: 8bit
Ernest,
   Afterthought........Ideal ratio for that 8500 rpm P port engine !!
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2




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

Ernest,
  Sounds like you have youself a 3.17-1 redrive !! 
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from Ernest Christley <echristley@nc.rr.com>: --------------


> Tracy Crook wrote:
>
> > The formula is not the same for both locked ring gear and locked
> > planetary gear. This formula is for the locked ring gear and you
> > probably have the locked planetary. Remove the 1 from the equation
> > and it will come out right for yours.
> >
> > Tracy (making a lot of assumptions about your drive)
> >
> > I ran across some information in one of the scientific newsgroups
> > on how
> > to calculate the gear ratio of a planetary gear set.
> >
> > ratio = 1 + r / s
> >
> > where: r = number of ring gear teeth
> > s = number of sun gear teeth.
> >
>
> The ring gear is actually locked. The ring gear is pressed into the
> housing.
>
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