X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp109.sbc.mail.ne1.yahoo.com ([98.138.84.175] verified) by logan.com (CommuniGate Pro SMTP 5.4c3j) with ESMTPS id 4957321 for flyrotary@lancaironline.net; Mon, 25 Apr 2011 23:19:27 -0400 Received-SPF: softfail receiver=logan.com; client-ip=98.138.84.175; envelope-from=echristley@nc.rr.com Received: from [192.168.1.2] (localhost [127.0.0.1]) by smtp109.sbc.mail.ne1.yahoo.com (8.14.4/8.14.4) with ESMTP id p3Q3IpNC010690 for ; Mon, 25 Apr 2011 20:18:52 -0700 (PDT) (envelope-from echristley@nc.rr.com) Message-ID: <4DB63994.9050601@nc.rr.com> Date: Mon, 25 Apr 2011 23:18:44 -0400 From: Ernest Christley Reply-To: echristley@att.net User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.14) Gecko/20110223 Lightning/1.0b2 Thunderbird/3.1.8 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: DNA Mufflers No Longer Available References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------020702090708080807050104" This is a multi-part message in MIME format. --------------020702090708080807050104 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 04/25/2011 11:07 PM, Bill Bradburry wrote: > > Hi Bobby, > > The cutaway drawing I saw shows the "Vs" welded to two spiral strips > that are then inserted into the muffler. That is why I was wondering > about the marks on the outside of the muffler. The 4 inch inlet on a > 4 inch diameter muffler would lead one to believe that you could weld > the "Vs" up inside a pipe and produce a muffler. > > How would one weld up inside the pipe anyway??? > > Cut square holes with a die, and then weld in square tube. At least, that is how I would do it. --------------020702090708080807050104 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit On 04/25/2011 11:07 PM, Bill Bradburry wrote:

Hi Bobby,

The cutaway drawing I saw shows the “Vs” welded to two spiral strips that are then inserted into the muffler. That is why I was wondering about the marks on the outside of the muffler. The 4 inch inlet on a 4 inch diameter muffler would lead one to believe that you could weld the “Vs” up inside a pipe and produce a muffler.

How would one weld up inside the pipe anyway???

Cut square holes with a die, and then weld in square tube.

At least, that is how I would do it.
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