Return-Path: Received: from [65.33.167.37] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WebUser 4.1.5) with HTTP id 2629162 for flyrotary@lancaironline.net; Wed, 08 Oct 2003 18:00:37 -0400 From: "Marvin Kaye" Subject: Re: [FlyRotary] Re: True Displacement of the 13B rotary Egnine Take 2 To: flyrotary X-Mailer: CommuniGate Pro WebUser Interface v.4.1.5 Date: Wed, 08 Oct 2003 18:00:37 -0400 Message-ID: In-Reply-To: <002e01c38dd7$5f4a5d60$1702a8c0@WorkGroup> MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Transfer-Encoding: 8bit Posted for "Ed Anderson" : Your right of course, Leon. A per revolution comparison is a valid comparison, but there is just something that bothers me about getting to count the volume of all the cylinders in a reciprocating engine toward its displacement - yet, we dont' with the rotary. I certainly agree and have no issue with the equivalence comparison with a 2 or 4 stroke - but with them we do count all the volume displace in an engine cycle toward the total displacement. We simple don't with the rotary. But, as you said - does it make a difference? And of course it does not. You get what you get out of the engine. Hadn't heard or see you on the list in such a while I was a bit concerned. I had just forward JJ Johnson's interest in a 20B your way when you came on the list. I've been busy getting my Dynamic Effect Intake Presentation ready for a flyin in late October. It turns out there is a lot more to it than manifold length, RPM and the speed of sound {:>) Its going to open some eyes and prove some folks dead wrong - fortunately it has nothing to do with displacement {:>). Best Regards Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com > I sorta KNEW this would create contovesy. As I alluded to last > time, this whole capacity question is a can of worms, and it tends > to just keep going around and aound and back and forth }:>) . > > I can appreciate the point you make that all three rotor faces each > going though a Wankel Cycle, and needing 3 revs of the eccentric > shaft to do so..