X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from lincoln.lisco.com ([69.18.32.37] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3820310 for flyrotary@lancaironline.net; Fri, 21 Aug 2009 07:41:06 -0400 Received-SPF: none receiver=logan.com; client-ip=69.18.32.37; envelope-from=rob@mum.edu Received: from DELL919SZF1 (76-76-233-100.lisco.net [76.76.233.100]) by lincoln.lisco.com (Postfix) with SMTP id 898ED2BEF6 for ; Fri, 21 Aug 2009 06:40:23 -0500 (CDT) Message-ID: <146EA6872E7B44D09ADE6FB88DB5E0D5@DELL919SZF1> Reply-To: "Rob" From: "Rob" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Tubing size for 20B Date: Fri, 21 Aug 2009 06:40:21 -0500 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Thanks Ernest. Nice work on the Delta. I agree about the triangulation. Robert Bollinger MR722 MUM Fairfield IA 52557 (641)472-7000 ex2068 (641)919-3213 cell rob@mum.edu ----- Original Message ----- From: "Ernest Christley" To: "Rotary motors in aircraft" Sent: Thursday, August 20, 2009 8:57 PM Subject: [FlyRotary] Tubing size for 20B > Robert Bollinger wrote: >> Does anyone have any suggestions about tubing size for my 300hp 20B? I >> have made several mounts for my Ford V6 in my BD4. That has given me lots >> of experience making mounts for up to 200hp. But what about 300hp? Any >> thoughts would be appreciated. > Any decent mount design can be handled by 1/2"x.035 tube, but you would be > foolish to use that. It is to prone to taking a ding from a dropped hand > tool. Use at least 1/2"x.049. I have a two pieces of 3/4"x.069, but they > are only about 4" long, and they are under intense compression. > Each point you connect to the engine should be triangulated. Three tubes > connecting to solid mounts as far apart as possible. Have to load carried > directly to the wheels if possible. > > Check out the bottom of this page: > > http://ernest.isa-geek.org/Delta/Dyke_Engine.html > > The big tube in the center is the carrier for the nose gear. > > -- > Ernest Christley, President > Ernest@TechnicalTakedown.com > > TechnicalTakedown, LLC > www.TechnicalTakedown.com > 101 Steep Bank Dr. > Cary, NC 27518 > (919) 741-9397 > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html >