Mailing List flyrotary@lancaironline.net Message #17392
From: Ernest Christley <echristl@cisco.com>
Subject: Re: [FlyRotary] Re: PSRU - hub/prop end
Date: Thu, 17 Feb 2005 15:15:13 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Kelly Troyer wrote:

Ernest,
    What ratio are the gearset in your redrive ? If the outer (ring gear) of
the drive is fixed (pressed into housing) and the planet has four gears
and if they are Ford (C6 or E4OD) the ratio will be 2.85 to 1....... You
need to ask Tracy if the E4OD six pinion planetary will retrofit the to the
four pinion planetary ring gear and sun gear........FWIW  --
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

The ring gear is fixed.  Prop shaft is driven off the planet gear assembly.  It is a 3-planet gear set.  I seem to remember Joe saying that it was the Ford gearset.  But that was a long time ago, and it all seems so fuzzy now.  Jeesh, am I getting old?

Tracy, can you swap out the planet set willy-nilly like that, or is it asking for trouble sho-nuff?
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