X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [216.211.128.10] (HELO mail-in02.adhost.com) by logan.com (CommuniGate Pro SMTP 5.1c.2) with ESMTP id 1316236 for flyrotary@lancaironline.net; Wed, 26 Jul 2006 00:56:05 -0400 Received-SPF: none receiver=logan.com; client-ip=216.211.128.10; envelope-from=joeh@pilgrimtech.com Received: from Pilgrim10 (c-67-183-14-47.hsd1.wa.comcast.net [67.183.14.47]) by mail-in02.adhost.com (Postfix) with ESMTP id 9F4912BDA45 for ; Tue, 25 Jul 2006 21:55:09 -0700 (PDT) (envelope-from joeh@pilgrimtech.com) From: "Joe Hull" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Joe Hull's OSH Trip - Part 2 Date: Tue, 25 Jul 2006 21:55:08 -0700 Message-ID: <005101c6b06f$af100940$bb02a8c0@redmond.corp.microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 Thread-Index: Acawa2dvMVMxSOQySyaw5FdlgTS1wwAAMEWQ > You definitely need expansion joints. Tubes sliding within tubes, or > some other type of flex joints. > The thermal expansion/contraction simply kills those short runners. > > Finn Yep, I'm re-doing the whole exhaust system. No more inconel and no more tangential collector. It's probably going to be 2" x .065 wall, 321 Stainless tubes going to a collector and muffler of some sort. I seriously like the idea of non-welded joints - nothing to break off! Joe Hull Cozy Mk-IV N31CZ (65 hrs - Rotary 13B NA) Redmond (Seattle), Washington