X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail19.syd.optusnet.com.au ([211.29.132.200] verified) by logan.com (CommuniGate Pro SMTP 4.3.5) with ESMTPS id 1027841 for flyrotary@lancaironline.net; Thu, 30 Jun 2005 18:14:40 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.200; envelope-from=lendich@optusnet.com.au Received: from george (d211-31-107-82.dsl.nsw.optusnet.com.au [211.31.107.82]) by mail19.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j5UMDqJp019499 for ; Fri, 1 Jul 2005 08:13:53 +1000 Message-ID: <00a501c57dc1$0971f2f0$526b1fd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Muffler Date: Fri, 1 Jul 2005 08:14:08 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00A2_01C57E14.DACE8360" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_00A2_01C57E14.DACE8360 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MufflerBulent, I was just thinking the same thing. Some one suggested that the Jabiru = muffler had a flat plate angled opposite the inlet and it worked very = well. I now wondering what would happen with all square tube. Something to think about that's for sure! George ( down under) 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 ------=_NextPart_000_00A2_01C57E14.DACE8360 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Muffler
Bulent,
I was just thinking the same thing. = Some one=20 suggested that the Jabiru muffler had a flat plate angled opposite the = inlet and=20 it worked very well. I now wondering what would happen with all square=20 tube.
Something to think about that's for=20 sure!
George ( down under)
I = believe if=20 the whole thing was made by using square, or out of round pipes and = shapes it=20 will reduce the noise better.
Maybe that=92s why there is no square = brass=20 musing instruments? Their horns are all round to amplify the=20 sound.
Buly ------=_NextPart_000_00A2_01C57E14.DACE8360--