X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from QMTA07.emeryville.ca.mail.comcast.net ([76.96.30.64] verified) by logan.com (CommuniGate Pro SMTP 5.2.11) with ESMTP id 3414177 for flyrotary@lancaironline.net; Wed, 07 Jan 2009 02:09:41 -0500 Received-SPF: none receiver=logan.com; client-ip=76.96.30.64; envelope-from=cbarber@texasattorney.net Received: from OMTA14.emeryville.ca.mail.comcast.net ([76.96.30.60]) by QMTA07.emeryville.ca.mail.comcast.net with comcast id 0WVR1b00E1HpZEsA7X93WX; Wed, 07 Jan 2009 07:09:03 +0000 Received: from ChristopherNB ([98.200.27.148]) by OMTA14.emeryville.ca.mail.comcast.net with comcast id 0X901b0063Bjvle8aX93h5; Wed, 07 Jan 2009 07:09:03 +0000 Message-ID: From: "Christopher Barber" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: muffler design Date: Wed, 7 Jan 2009 01:08:58 -0600 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=response Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Windows Mail 6.0.6001.18000 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 Yeah, what John Slade said.....I hope All the best, Chris ----- Original Message ----- From: "John Slade" To: "Rotary motors in aircraft" Sent: Tuesday, January 06, 2009 10:12 PM Subject: [FlyRotary] Re: muffler design > How about sending the exhaust into a circular chamber with a spinning > wheel at the end to slow the exhaust down and absorb some of the energy? > Of course the chamber would have to be very strong, and the wheel would > have to have very good bearings and be made of something like inconel. > Perhaps you could even harness some of the energy captured by the wheel to > do useful work.... > > Hey! Hold on a minute.... there's such a device on the market - A > Turbonetics turbo. :) > > John (quieter than a C172) Slade > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: > http://mail.lancaironline.net:81/lists/flyrotary/List.html >