Return-Path: Received: from [65.54.169.59] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 776249 for flyrotary@lancaironline.net; Tue, 08 Mar 2005 22:51:44 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.169.59; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 8 Mar 2005 19:50:58 -0800 Message-ID: Received: from 4.171.150.75 by BAY3-DAV29.phx.gbl with DAV; Wed, 09 Mar 2005 03:50:58 +0000 X-Originating-IP: [4.171.150.75] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Different Tangential Mufflers Date: Tue, 8 Mar 2005 22:50:57 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00FA_01C52431.4AFA4400" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Tue, 8 Mar 2005 22:50:57 -0500 X-OriginalArrivalTime: 09 Mar 2005 03:50:58.0400 (UTC) FILETIME=[340FC600:01C5245B] This is a multi-part message in MIME format. ------=_NextPart_000_00FA_01C52431.4AFA4400 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bill, from the picture you sent, it isn't clear to me where the 'cool = tube' ends inside the muffler. Give me a clue! Tracy Group, I am attaching several JPEGS of tangential mufflers. The smaller = muffler is a variant on the cool tube theme, with the bounce panel = added. The Jabaru uses a muffler of this style without the cool tube, = and it's very quiet. I think the cool tube is a good idea on the rotary = to help control temps. The second set of JPEGS is the original VAM = concept. Note that the layout is setup for a 20B since that is what I'll = be running. The pic with the text shows where the idea was "got wrong" = for the test unit. I believe ED K. did a good job of building it but = then they ran it sans tailpipe which skewed the result. Bill Jepson ------=_NextPart_000_00FA_01C52431.4AFA4400 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Bill, from the picture you sent, it isn't clear to me where the = 'cool tube'=20 ends inside the muffler. Give me a clue!

Tracy

Group,
I=20 am attaching several JPEGS of tangential mufflers. The smaller muffler = is a=20 variant on the cool tube theme, with the bounce panel added. The = Jabaru uses a=20 muffler of this style without the cool tube, and it's very quiet. I = think the=20 cool tube is a good idea on the rotary to help control temps. The = second set=20 of JPEGS is the original VAM concept. Note that the layout is setup = for a 20B=20 since that is what I'll be running. The pic with the text shows where = the idea=20 was "got wrong" for the test unit. I believe ED K. did a good job of = building=20 it but then they ran it sans tailpipe which skewed the result.
Bill = Jepson

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