Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Mon, 12 May 2003 18:54:32 -0400 Message-ID: X-Original-Return-Path: Received: from droid2.spawar.navy.mil ([128.49.192.70] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with ESMTP id 2344844 for flyrotary@lancaironline.net; Mon, 12 May 2003 12:17:26 -0400 Received: from deskdog (airscoop.nosc.mil [128.49.41.135]) by droid2.spawar.navy.mil (8.11.6/8.11.6) with ESMTP id h4CGH9425441 for ; Mon, 12 May 2003 09:17:09 -0700 X-Original-Message-Id: <4.2.0.58.20030512091059.00a5fa88@mailsd1.spawar.navy.mil> X-Sender: willsm@mailsd1.spawar.navy.mil X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 X-Original-Date: Mon, 12 May 2003 09:17:09 -0700 X-Original-To: "Rotary motors in aircraft" From: Mike Wills Subject: Re: [FlyRotary] Re: 321 SS thickness In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed X-MailScanner: Found to be clean Tommy, I think you are saying that you have welded your 2 exhaust primaries into a "Y" collector? Just want to be sure that you have slip couplings, flex tubing, or some other means of allowing the 2 primaries to move relative to one another. As opposed to a header that is rigidly welded together from exhaust flange to collector. There was a recent crash discussed on the "other" list that was caused by a failed exhaust system. The failure was due (at least in part) to the builder not allowing for differential expansion of the 2 primaries. Mike Wills At 08:29 AM 5/11/2003 -0400, you wrote: >Posted for "Tommy James" : > >Hi Guys, (I'm back after a couple of weeks of business) >I had mine two ss pipe headers welded to a 'Y' collector and the whole thing >was sent off to Jet Hot for a super 2000 degree coating, inside and out, >cost $175us and is doing great. >Regards, >Tommy James<><