X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf16aec.mail.bellsouth.net ([205.152.59.64] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 946763 for flyrotary@lancaironline.net; Mon, 16 May 2005 22:05:09 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.64; envelope-from=bobperk@bellsouth.net Received: from ibm56aec.bellsouth.net ([68.19.208.32]) by imf16aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050517020424.XPRL2562.imf16aec.mail.bellsouth.net@ibm56aec.bellsouth.net> for ; Mon, 16 May 2005 22:04:24 -0400 Received: from HpPavilion310n ([68.19.208.32]) by ibm56aec.bellsouth.net (InterMail vG.1.02.00.01 201-2136-104-101-20040929) with ESMTP id <20050517020424.EMVT11479.ibm56aec.bellsouth.net@HpPavilion310n> for ; Mon, 16 May 2005 22:04:24 -0400 From: "Bob Perkinson" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Muffler was [FlyRotary] Re: Prop balancing? Date: Mon, 16 May 2005 21:04:22 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0026_01C55A5A.D5C34D70" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_0026_01C55A5A.D5C34D70 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Ed, Ever think about a pulsating air pump. Build it like a drum with one-way reed valves. Sound waves beat the drum and pumps air to the intake, and if timed right would offset wave pattern in the intake. Just a thought! Bob Perkinson Hendersonville, TN. RV9A If Nothing Changes Nothing Changes! AND give up 15HP? Nope, besides need some motivation to do some more muffler design work (play). I keep thinking about all the power in that exhaust pulse and the potential of doing something? with it {:>) ------=_NextPart_000_0026_01C55A5A.D5C34D70 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Ed= ,

Ev= er think about a pulsating air pump.  = Build it like a drum with one-way reed valves.  Sound waves beat the drum and pumps air to the intake, and if = timed right would offset wave pattern in the intake.  Just a thought!

 

Bob Perkinson

Hendersonville, = TN.

RV9A

If Nothing = Changes

Nothing = Changes!

 

 

AND give = up 15HP?  Nope, besides need some motivation to do some more muffler = design work (play).

I keep = thinking about all the power in that exhaust pulse and the potential of doing = something? with it {:>)

 

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