Return-Path: Sender: (Marvin Kaye) To: flyrotary Date: Thu, 22 May 2003 09:51:15 -0400 Message-ID: X-Original-Return-Path: Received: from web41309.mail.yahoo.com ([66.218.93.58] verified) by logan.com (CommuniGate Pro SMTP 4.1b6) with SMTP id 2358337 for flyrotary@lancaironline.net; Wed, 21 May 2003 20:33:11 -0400 X-Original-Message-ID: <20030522003307.86674.qmail@web41309.mail.yahoo.com> Received: from [67.40.15.195] by web41309.mail.yahoo.com via HTTP; Wed, 21 May 2003 17:33:07 PDT X-Original-Date: Wed, 21 May 2003 17:33:07 -0700 (PDT) From: John Overman Subject: Re: [FlyRotary] Tuned induction X-Original-To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii --- Al Gietzen wrote: > Further to my recent response to Tracy's posting, I > wanted to clarify > that I was not disagreeing that there benefits to be > gained from tuned > induction. Clearly there are. I would just like to > see some hard data > to support that the way it is being done with the > "wrap-over" tubes is > really giving significant benefits. Is anybody > really getting more than > about 85 hp/rotor at 6000 rpm in their NA engine. > > > > I question it based of theory; not on fact. There > is a reason why pipe > organ pipes are straight Oh Contraire Mon Amie: As a lad I lelped my father remove a pipe organ from a theater and install it in our house. Even though it had twelve foot ceilings some of the pipes had to be mitered to go up and then across the ceiling, in fact some of them were mitered twice and went back down towards the floor.There was no descernable loss in clairity. John __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com