X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [216.211.128.10] (HELO mail-in04.adhost.com) by logan.com (CommuniGate Pro SMTP 5.0.7) with ESMTP id 965697 for flyrotary@lancaironline.net; Thu, 02 Feb 2006 20:25:13 -0500 Received-SPF: none receiver=logan.com; client-ip=216.211.128.10; envelope-from=joeh@pilgrimtech.com Received: from Pilgrim10 (c-67-183-14-47.hsd1.wa.comcast.net [67.183.14.47]) by mail-in04.adhost.com (Postfix) with ESMTP id 4243ECA9FE for ; Thu, 2 Feb 2006 17:25:06 -0800 (PST) (envelope-from joeh@pilgrimtech.com) From: "Joe Hull" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Muffler options Date: Thu, 2 Feb 2006 17:24:19 -0800 Message-ID: <006b01c62860$9601ce30$bb02a8c0@redmond.corp.microsoft.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006C_01C6281D.87DE8E30" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcYoWikyhAgdtAeHQl+rdRDjkIB70AABfTOQ In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670 This is a multi-part message in MIME format. ------=_NextPart_000_006C_01C6281D.87DE8E30 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I'm NA and built a tangential muffler from 6" inconel. I haven't run the engine over 3000 RPM - but so far it isn't bad at all - and that was inside my garage. I'm moving the plane to the airport in a few days (took the wings and canard up there today!) - so I guess I'll find out what it sounds like at higher RPM once I get her all put back together. Thanx Joe Hull Cozy Mk-IV #991 (Done Building! In Phase1 Flight Test - 0 hrs flown) Redmond (Seattle), Washington _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of John Slade Sent: Thursday, February 02, 2006 4:21 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Muffler options I'm thinking that with all this spare space I could sneak in one of these. http://www.burnsstainless.com/UltraliteMuffler/ultralitemuffler.html An added advantage is that this would help form a venturi inside the augmenter. I know you NA guys have all kinds of trouble with mufflers, but could the turbo actually help by smoothing out all the nasty pulses? Thoughts? John ------=_NextPart_000_006C_01C6281D.87DE8E30 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

I’m NA and built a tangential muffler from 6” inconel.  I haven’t run the engine over = 3000 RPM – but so far it isn’t bad at all - and that was inside my = garage.  I’m moving the plane to the airport in a few days (took the wings and canard = up there today!) – so I guess I’ll find out what it sounds like = at higher RPM once I get her all put back = together.

 

Thanx

Joe = Hull

Cozy Mk-IV #991 (Done Building! In = Phase1 Flight Test - 0 hrs flown)

Redmond (Seattle), Washington

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of John Slade
Sent: Thursday, February = 02, 2006 4:21 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Muffler options

 

I'm thinking that with all this = spare space I could sneak in one of these.

 

 

An added advantage is that this = would help form a venturi inside the augmenter.

 

I know you NA guys have all kinds = of trouble with mufflers, but could the turbo actually help by = smoothing out all the nasty pulses?

Thoughts?

John

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