Return-Path: Received: from capitol.mail.pas.earthlink.net ([207.217.120.180] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 609076 for flyrotary@lancaironline.net; Sun, 16 Jan 2005 12:35:41 -0500 Received-SPF: none receiver=logan.com; client-ip=207.217.120.180; envelope-from=j-winddesigns@thegrid.net Received: from sdn-ap-016ilchicp0437.dialsprint.net ([65.176.161.183] helo=thegrid.net) by capitol.mail.pas.earthlink.net with esmtp (Exim 3.33 #1) id 1CqEIw-00011o-00 for flyrotary@lancaironline.net; Sun, 16 Jan 2005 09:35:11 -0800 Date: Sun, 16 Jan 2005 12:35:55 -0500 Subject: Re: [FlyRotary] Re: Engine mounts Content-Type: multipart/alternative; boundary=Apple-Mail-80-888220559 Mime-Version: 1.0 (Apple Message framework v552) From: Jerry Hey To: "Rotary motors in aircraft" In-Reply-To: Message-Id: <138D0208-67E5-11D9-9787-0003931B0C7A@thegrid.net> X-Mailer: Apple Mail (2.552) --Apple-Mail-80-888220559 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=WINDOWS-1252; format=flowed On Sunday, January 16, 2005, at 12:18 PM, Al Gietzen wrote: > The short answer is Yes.=A0 The engine mount I build is called an = S-beam > > (Schertz Beam) mount.=A0 The concept was first developed by Bill = Schertz > > and was modified by Paul Lamar and others until it evolved into the > > present configuration.=A0 The S-beam mount only supports the front of = the > > engine.=A0 The rear engine support is provided by a adjustable=A0 = strut > > that runs=A0 from "someplace" on the back of the engine to "someplace" = on > > the firewall.=A0=A0 > > =A0 > > I guess which is the =93front=94 of the engine is a relative term. =A0I=20= > conclude it primarily supports the flywheel end. It appears=20 > structurally very sound, but I wonder why there are struts along the=20= > engine bulkhead between the support points.=A0 Those would only be=20 > needed if the bulkhead (or structure between the attach points) was=20 > not structurally sound. > > > Al That structure is part of the Tailwind landing gear mount. RV tail=20 dragger is the same. Jerry > > =A0 > --Apple-Mail-80-888220559 Content-Transfer-Encoding: quoted-printable Content-Type: text/enriched; charset=WINDOWS-1252 On Sunday, January 16, 2005, at 12:18 PM, Al Gietzen wrote: The short answer is Yes.=A0 The engine mount I build is called an S-beam (Schertz Beam) mount.=A0 The concept was first developed by Bill Schertz and was modified by Paul Lamar and others until it evolved into the present configuration.=A0 The S-beam mount only supports the front of the engine.=A0 The rear engine support is provided by a adjustable=A0= strut that runs=A0 from "someplace" on the back of the engine to "someplace" on the firewall.=A0=A0 = Verdana0000,0000,0000=A0 = Verdana0000,0000,0000I guess which is the =93front=94 of the engine is a relative term. =A0I conclude it primarily supports the flywheel end. It appears structurally very sound, but I wonder why there are struts along the engine bulkhead between the support points.=A0 Those would only be needed if the bulkhead (or structure between the attach points) was not structurally sound. = Verdana0000,0000,0000Al That structure is part of the Tailwind landing gear mount. RV tail dragger is the same. Jerry =A0 = --Apple-Mail-80-888220559--