Return-Path: Received: from rtp-iport-2.cisco.com ([64.102.122.149] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 620189 for flyrotary@lancaironline.net; Mon, 24 Jan 2005 17:44:29 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.102.122.149; envelope-from=echristl@cisco.com Received: from rtp-core-1.cisco.com (64.102.124.12) by rtp-iport-2.cisco.com with ESMTP; 24 Jan 2005 17:44:00 -0500 X-BrightmailFiltered: true X-Brightmail-Tracker: AAAAAA== Received: from [172.18.179.151] (echristl-linux.cisco.com [172.18.179.151]) by rtp-core-1.cisco.com (8.12.10/8.12.6) with ESMTP id j0OMhvW0020738 for ; Mon, 24 Jan 2005 17:43:58 -0500 (EST) Message-ID: <41F57A2D.4050901@cisco.com> Date: Mon, 24 Jan 2005 17:43:57 -0500 From: Ernest Christley User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20040929 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Flex plate <> Flywheel [FlyRotary] Re: flex plate References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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.