Mailing List flyrotary@lancaironline.net Message #15941
From: Ernest Christley <echristl@cisco.com>
Subject: Re: [FlyRotary] Re: Flex plate <> Flywheel [FlyRotary] Re: flex plate
Date: Mon, 24 Jan 2005 17:43:57 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Paul wrote:


What do the bolts screw into?  Rivnuts? A backing plate?


The bolts screw directly into the existing holes on the automatic transmission flex plate. (which I used to think was a flywheel, until several helpful members of the Fly Rotary list helped to educate me).  Paul Conner


I've read this several times, and still not quite sure I can believe it.  The flex plate I have is thin.  In the .040" range thin.  I realize that it will all be shear forces, but can 9 threaded holes be expected to take the 800ft/lb of reaction forces that a typical NA engine is expected to put out?
(I believe I got the 800ft/lb number out of the discussion of the Schwertz beam motor mount on PL website).  Just doesn't seem like it could hold up.
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