Return-Path: Received: from smtpauth01.mail.atl.earthlink.net ([209.86.89.61] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 775684 for flyrotary@lancaironline.net; Tue, 08 Mar 2005 15:32:44 -0500 Received-SPF: neutral receiver=logan.com; client-ip=209.86.89.61; envelope-from=jerryhey@earthlink.net Received: from [65.176.161.122] (helo=earthlink.net) by smtpauth01.mail.atl.earthlink.net with asmtp (Exim 4.34) id 1D8lN0-0002Tr-6R for flyrotary@lancaironline.net; Tue, 08 Mar 2005 15:31:58 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=simple; s=test1; d=earthlink.net; h=Date:Subject:Content-Type:Mime-Version:From:To:Content-Transfer-Encoding:In-Reply-To:Message-Id:X-Mailer; b=JUvzf9+/BbSPOQpZbYoXv5qVwCOnudse+20qsY/X7yegF94nRIACEkVwvlhuxDQA; Date: Tue, 8 Mar 2005 15:33:08 -0500 Subject: Re: [FlyRotary] Re: Tangential muffler Content-Type: text/plain; delsp=yes; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v552) From: Jerry Hey To: "Rotary motors in aircraft" Content-Transfer-Encoding: 7bit In-Reply-To: Message-Id: <4878C670-9011-11D9-A9EE-0003931B0C7A@earthlink.net> X-Mailer: Apple Mail (2.552) X-ELNK-Trace: 8104856d7830ec6b1aa676d7e74259b7b3291a7d08dfec79cbf04702676106a14a3673240b8abc62350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 65.176.161.122 Thanks for your comment Ed. The cool tube is intended to extract a lot of that heat and pump it overboard. We shall soon see if it works as Bob White will be running his engine soon. I got my fingers crossed. On Tuesday, March 8, 2005, at 03:17 PM, Ed Anderson wrote: > Jerry, Tracy Crook flew with a similar Tangential muffler for a number > of > hours. The neat thing is it does fit under the cowl and suppress sound > nicely, the un-neat thing is it acts like a large oven under the cowl > and > keeps cowl temps highly elevated. I am fairly certain that is why > Tracy > removed it. > > Ed A > > > ----- Original Message ----- > From: "Jerry Hey" > To: "Rotary motors in aircraft" > Sent: Tuesday, March 08, 2005 3:01 PM > Subject: [FlyRotary] Tangential muffler > > >> From the "other" list comes the report that someone has tested a >> similar exhaust system to what I have been building on his PowerSport >> p >> ported engine. . He reports the muffler worked well to quiet the >> exhaust note and that the engine seemed to breath freely. The neat >> thing about this exhaust system is that it fits inside the cowl. >> Here are a couple of photos showing the muffler on a Mustang 2. The >> muffler is 6" o.d. x 10 inches long. Construction is 321 16 gage. >> The cool tube running through the center is intended to cool the >> exhaust gas. Fresh air is plumbed through it. The engine mount is >> the S-beam. Jerry >> > > > ----------------------------------------------------------------------- > ----- > ---- > > >> >> >> >> >> > > > ----------------------------------------------------------------------- > ----- > ---- > > >>>> Homepage: http://www.flyrotary.com/ >>>> Archive: http://lancaironline.net/lists/flyrotary/List.html >> > > > >>> Homepage: http://www.flyrotary.com/ >>> Archive: http://lancaironline.net/lists/flyrotary/List.html >