X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2c4) with ESMTP id 2636835 for flyrotary@lancaironline.net; Tue, 08 Jan 2008 19:49:38 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from edward2 ([24.74.103.61]) by cdptpa-omta03.mail.rr.com with SMTP id <20080109004859.PYUB2942.cdptpa-omta03.mail.rr.com@edward2> for ; Wed, 9 Jan 2008 00:48:59 +0000 Message-ID: <000b01c85259$74afbba0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Dennis' Muffler Date: Tue, 8 Jan 2008 19:49:13 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0008_01C8522F.8B949450" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C8522F.8B949450 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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 -----=20 From: Kelly Troyer=20 To: Rotary motors in aircraft=20 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=20 "Dyke Delta"_13B ROTARY Engine=20 "RWS"_RD1C/EC2/EM2=20 "Mistral"_Backplate/Oil Manifold=20 -------------- Original message from "Mark Steitle" = : --------------=20 Bill,=20 Here is a cutaway of the Hushpower II Resonator. I'll have to get = the dimensions this weekend. The dimensions you quoted are pretty = close, but you may need a heat shield, or some Zetex to protect the = fiberglass. =20 Mark ------=_NextPart_000_0008_01C8522F.8B949450 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

No Packing, Kelly. Basically concentric = tubes with=20 holes in them. It appears to use acoustical wave damping as a = primary=20 sound suppression technique followed by damping from the energy = lost caused=20 by the numerous holes. The HushPower resonator is = basically=20 1/2 of the regular HushPower II muffler (also 1/2 its = length)

----- Original Message -----
From:=20 Kelly = Troyer
To: Rotary motors in = aircraft

Sent: Tuesday, January 08, 2008 = 6:47=20 PM

Subject: [FlyRotary] Re: = Dennis'=20 Muffler

Mark,

Any info on what the packing is in the=20 "Hushpower"??

Thanks

--
Kelly Troyer
"Dyke = Delta"_13B=20 ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil = Manifold=20

--------------=20 Original message from "Mark Steitle" <msteitle@gmail.com>: = --------------=20

Bill,

Here is a cutaway of the Hushpower II = Resonator. =20 I'll have to get the dimensions this weekend. The dimensions = you=20 quoted are pretty close, but you may need a heat shield, or some = Zetex to=20 protect the fiberglass. =

Mark

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