X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf22aec.mail.bellsouth.net ([205.152.59.70] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTP id 1027843 for flyrotary@lancaironline.net; Thu, 30 Jun 2005 17:56:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.70; envelope-from=atlasyts@bellsouth.net Received: from ibm65aec.bellsouth.net ([68.213.226.209]) by imf22aec.mail.bellsouth.net with ESMTP id <20050630202927.KYTR2463.imf22aec.mail.bellsouth.net@ibm65aec.bellsouth.net> for ; Thu, 30 Jun 2005 16:29:27 -0400 Received: from [192.168.0.104] (really [68.213.226.209]) by ibm65aec.bellsouth.net with ESMTP id <20050630202926.MDNT6485.ibm65aec.bellsouth.net@[192.168.0.104]> for ; Thu, 30 Jun 2005 16:29:26 -0400 User-Agent: Microsoft-Entourage/11.1.0.040913 Date: Thu, 30 Jun 2005 16:29:24 -0400 Subject: Re: [FlyRotary] Re: Muffler From: Bulent Aliev To: Rotary motors in aircraft Message-ID: In-Reply-To: Mime-version: 1.0 Content-type: multipart/alternative; boundary="B_3202993766_1595369" > This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. --B_3202993766_1595369 Content-type: text/plain; charset="US-ASCII" Content-transfer-encoding: 7bit Looks good Bill. I think it will make some difference by confusing the pulses. Buly On 6/30/05 3:13 PM, "wrjjrs@aol.com" wrote: > Buly, Interestingly the muffler used by Jabaru is a tangential style with a > flat side. Fairly quiet too. I did a drawing showing how it will look on > Jerry's through-and-through cool tube style. > Bill Jepson > > -----Original Message----- > From: Bulent Aliev > To: Rotary motors in aircraft > Sent: Thu, 30 Jun 2005 14:45:27 -0400 > Subject: [FlyRotary] Muffler > > I believe if the whole thing was made by using square, or out of round pipes > and shapes it will reduce the noise better. > Maybe that?s why there is no square brass musing instruments? Their horns are > all round to amplify the sound. > Buly > > --B_3202993766_1595369 Content-type: text/html; charset="US-ASCII" Content-transfer-encoding: quoted-printable Re: [FlyRotary] Re: Muffler
Looks good Bill. I think it will make some difference by confusing the puls= es.
Buly

On 6/30/05 3:13 PM, "wrjjrs@aol.com" <wrjjrs@aol.com> wrote= :

Buly, Interestingly the muffler used by Jabaru is a tan= gential style with a flat side. Fairly quiet too. I did a drawing showing ho= w it will look on Jerry's through-and-through cool tube style.
Bill Jepson
 
-----Original Message-----
From: Bulent Aliev <atlasyts@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, 30 Jun 2005 14:45:27 -0400
Subject: [FlyRotary] Muffler

I believe if the whole thing was made by using square, or out of round pipe= s and shapes it will reduce the noise better.
Maybe that?s why there is no square brass musing instruments? Their horns a= re all round to amplify the sound.
Buly

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