X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost02.isp.att.net ([207.115.11.52] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2637703 for flyrotary@lancaironline.net; Wed, 09 Jan 2008 11:14:14 -0500 Received-SPF: none receiver=logan.com; client-ip=207.115.11.52; envelope-from=keltro@att.net Received: from fwebmail17.isp.att.net ([204.127.221.117]) by isp.att.net (frfwmhc02) with SMTP id <20080109161334H0200ag02je>; Wed, 9 Jan 2008 16:13:35 +0000 X-Originating-IP: [204.127.221.117] Received: from [64.250.199.31] by fwebmail17.isp.att.net; Wed, 09 Jan 2008 16:13:33 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: Hushpower packing (was Dennis' Muffler) Date: Wed, 09 Jan 2008 16:13:33 +0000 Message-Id: <010920081613.22814.4784F2AC0006A4030000591E22228869349B0A02D29B9B0EBF019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Oct 30 2007) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_22814_1199895213_0" --NextPart_Webmail_9m3u9jl4l_22814_1199895213_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Thanks Ed !! -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Tuesday, January 08, 2008 7:49 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Dennis' Muffler No Packing, Kelly. Basically concentric tubes with holes in them. It appears to use acoustical wave damping as a primary sound suppression technique followed by damping from the energy lost caused by the numerous holes. The HushPower resonator is basically 1/2 of the regular HushPower II muffler (also 1/2 its length) Ed ----- Original Message ----- From: Kelly Troyer To: Rotary motors in aircraft Sent: Tuesday, January 08, 2008 6:47 PM Subject: [FlyRotary] Re: Dennis' Muffler Mark, Any info on what the packing is in the "Hushpower"?? Thanks -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold --NextPart_Webmail_9m3u9jl4l_22814_1199895213_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Thanks Ed !!

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Tuesday, January 08, 2008 7:49 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Dennis' Muffler

No Packing, Kelly. Basically concentric tubes with holes in them. It appears to use acoustical wave damping as a primary sound suppression technique followed by damping from the energy lost caused by the numerous holes. The HushPower resonator is basically 1/2 of the regular HushPower II muffler (also 1/2 its length)

Ed

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

From: Kelly Troyer

To: Rotary motors in aircraft

Sent: Tuesday, January 08, 2008 6:47 PM

Subject: [FlyRotary] Re: Dennis' Muffler

Mark,

Any info on what the packing is in the "Hushpower"??

Thanks

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

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