X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from rwcrmhc15.comcast.net ([204.127.192.85] verified) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1317491 for flyrotary@lancaironline.net; Wed, 26 Jul 2006 19:37:12 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.192.85; envelope-from=rlwhite@comcast.net Received: from quail (c-68-35-160-229.hsd1.nm.comcast.net[68.35.160.229]) by comcast.net (rwcrmhc15) with SMTP id <20060726233626m1500dt8upe>; Wed, 26 Jul 2006 23:36:26 +0000 Date: Wed, 26 Jul 2006 17:37:45 -0600 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Joe Hull's OSH Trip - Part 2 Message-Id: <20060726173745.2fa9350f.rlwhite@comcast.net> In-Reply-To: References: X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Hi Ernest, My thinking is that the can will expand differently than the block creating some stress on the weld joint to the can. In that case, longer would be better. The problem is way too complex for me to calculate anything, so I'm just going to see what I get. Finn may be correct but I'm hoping for the best. I will be putting my 40 hours of flying time not far from an airport with a lot of wide open space around it. Bob W. On Wed, 26 Jul 2006 13:33:24 -0400 Ernest Christley wrote: > Bob White wrote: > > >Hi Mark, > > > >Your system has a little more room to flex than mine. I think the most > >likely place I will see a crack is where the short tube are welded to > >the large can. > > > > > > > > Such a short tube with no bends, probably won't be much flexing at all. > -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (first engine start 1/7/06) Custom Cables for your rotary installation - http://www.roblinphoto.com/shop/