Return-Path: Received: from imo-m14.mx.aol.com ([64.12.138.204] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 776388 for flyrotary@lancaironline.net; Wed, 09 Mar 2005 02:09:41 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.138.204; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m14.mx.aol.com (mail_out_v37_r3.8.) id q.13d.ea1524d (3890) for ; Wed, 9 Mar 2005 02:08:47 -0500 (EST) From: WRJJRS@aol.com Message-ID: <13d.ea1524d.2f5ffafe@aol.com> Date: Wed, 9 Mar 2005 02:08:46 EST Subject: Re: [FlyRotary] Re: Different Tangential Mufflers To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1110352126" X-Mailer: 9.0 SE for Windows sub 5005 -------------------------------1110352126 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 3/8/2005 7:51:57 PM Pacific Standard Time, lors01@msn.com writes: 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 Tracy, On the small muffler (2 rotor) the cool tube goes all the way thru. The front of the tube needs a feed from the cowl. The exit needs a pipe to the cowl exit although it could be very thin. This is a sealed style like Jerry Hey and Ed Klepis have come up with. On the 3 rotor pipe the cool tube stops just inside the tailpipe. The section might be a little confusing as it shows a small support bar that was suggested to prevent the internal pipe from sagging. The sections I included should give a good indication. The intent is to form a annulus that should draw air through the tube venturi style. This needs only some clear space in front of the muffler. The idea is that you should mix air in the tailpipe to A; cool the exhaust and not burn the paint off the belly, and B; lessen the exhaust note by absorbing some of the exhaust energy by mixing cooler air with the exhaust. Bill Jepson -------------------------------1110352126 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 3/8/2005 7:51:57 PM Pacific Standard Time,=20 lors01@msn.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DVerdana color=3D#000000 siz= e=3D2>
Bill, from the picture you sent, it isn't clear to me where the 'cool= =20 tube' ends inside the muffler.  Give me a clue!
 
Tracy
Tracy, On the small muffler (2 rotor) the cool tube goes all the way th= ru.=20 The front of the tube needs a feed from the cowl. The exit needs a=20 pipe to the cowl exit although it could be very thin. This is a se= aled=20 style like Jerry Hey and Ed Klepis have come up with. On the 3 rotor pipe th= e=20 cool tube stops just inside the tailpipe. The section might be a little=20 confusing as it shows a small support bar that was suggested to prevent the=20 internal pipe from sagging. The sections I included should give a good=20 indication. The intent is to form a annulus that should draw air through the= =20 tube venturi style. This needs only some clear space in front of the muffler= .=20 The idea is that you should mix air in the tailpipe to A; cool the exhaust a= nd=20 not burn the paint off the belly, and B; lessen the exhaust note by absorbin= g=20 some of the exhaust energy by mixing cooler air with the exhaust.
Bill Jepson
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