X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from poplet2.per.eftel.com ([203.24.100.45] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3645095 for flyrotary@lancaironline.net; Sun, 17 May 2009 18:02:19 -0400 Received-SPF: none receiver=logan.com; client-ip=203.24.100.45; envelope-from=lendich@aanet.com.au Received: from mail.aanet.com.au (mail.aanet.com.au [203.24.100.34]) by poplet2.per.eftel.com (Postfix) with ESMTP id 7CFEA1739CF for ; Mon, 18 May 2009 06:01:39 +0800 (WST) Received: from ownerf1fc517b8 (203.171.92.134.static.rev.aanet.com.au [203.171.92.134]) by mail.aanet.com.au (Postfix) with SMTP id E3968149C48B for ; Mon, 18 May 2009 06:01:32 +0800 (WST) Message-ID: <5040C33DF2AC41F59F20F5E5FAAB722F@ownerf1fc517b8> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: 20b Exhaust Date: Mon, 18 May 2009 08:01:35 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0025_01C9D78E.DD31B500" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-Antivirus: avast! (VPS 0617-3, 04/28/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0025_01C9D78E.DD31B500 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Tracy,=20 Any significant back pressure to speak of? George (down under) ----- Original Message -----=20 From: Tracy Crook=20 To: Rotary motors in aircraft=20 Sent: Monday, May 18, 2009 12:11 AM Subject: [FlyRotary] Re: 20b Exhaust In general, the bigger the exit pipe, the louder the exhaust will be. = I used 2.25" which I think is about the minimum for a 20B. Tracy On Sat, May 16, 2009 at 9:28 AM, wrote: I have fabricated my exhaust manifold/tangential muffler for my 20b. = All I have left is to fit and weld the exhaust pipe. I would like = opinions on the size the exhaust pipe should be. This is in a pusher = application (Velocity) with a relatively short run from the muffler to = the exit point. Similar installation to Al G. Thanks, Joe -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0025_01C9D78E.DD31B500 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Tracy,

Any significant back pressure to speak=20 of?

George (down under)

----- Original Message -----

From:=20 Tracy=20 Crook

To: Rotary motors in = aircraft

Sent: Monday, May 18, 2009 = 12:11 AM

Subject: [FlyRotary] Re: 20b=20 Exhaust

In general, the bigger the exit pipe, the louder the = exhaust=20 will be. I used 2.25" which I think is about the minimum for a=20 20B.

Tracy

On Sat, May 16, 2009 at 9:28 AM, <jewen@comporium.net> = wrote:

I=20 have fabricated my exhaust manifold/tangential muffler for my 20b. = All=20 I have left is to fit and weld the exhaust pipe. I would like = opinions=20 on the size the exhaust pipe should be. This is in a pusher=20 application (Velocity) with a relatively short run from the muffler = to the=20 exit point. Similar installation to Al=20 G.

Thanks,
Joe

--
Homepage:=20 http://www.flyrotary.com/
Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.htm= l

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