Return-Path: Received: from fed1rmmtao05.cox.net ([68.230.241.34] verified) by logan.com (CommuniGate Pro SMTP 4.2.8) with ESMTP id 609038 for flyrotary@lancaironline.net; Sun, 16 Jan 2005 12:18:29 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.34; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao05.cox.net (InterMail vM.6.01.04.00 201-2131-117-20041022) with ESMTP id <20050116171757.SMWZ14815.fed1rmmtao05.cox.net@BigAl> for ; Sun, 16 Jan 2005 12:17:57 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Engine mounts Date: Sun, 16 Jan 2005 09:18:07 -0800 Message-ID: <000901c4fbef$58c75330$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000A_01C4FBAC.4AA41330" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C4FBAC.4AA41330 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit The short answer is Yes. The engine mount I build is called an S-beam (Schertz Beam) mount. The concept was first developed by Bill Schertz and was modified by Paul Lamar and others until it evolved into the present configuration. The S-beam mount only supports the front of the engine. The rear engine support is provided by a adjustable strut that runs from "someplace" on the back of the engine to "someplace" on the firewall. I guess which is the "front" of the engine is a relative term. I 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. Those would only be needed if the bulkhead (or structure between the attach points) was not structurally sound. Al ------=_NextPart_000_000A_01C4FBAC.4AA41330 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

The short answer is Yes. The engine mount I build is called an S-beam =

(Schertz Beam) mount. The concept was first developed by Bill Schertz =

and was modified by Paul Lamar and others until it evolved into the =

present configuration. The S-beam mount only supports the front of the =

engine. The rear engine support is provided by a adjustable strut =

that runs from "someplace" on the back of the engine to "someplace" on

the firewall.

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I guess which = is the “front” of the engine is a relative term. I 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. Those = would only be needed if the bulkhead (or structure between the attach points) = was not structurally sound.

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