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From: "jesse farr" <jesse@jessfarr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-771273@logan.com>
Subject: Re: [FlyRotary] Re: Displacement - Again? Timing of the Work
Date: Mon, 17 Oct 2005 17:50:40 -0400
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Now why did I not read this before my earlier comment; I even agree with 
most of what Doug says. I think. I like it. (yeah, six strokes/cylces, four 
cycles/strokes, a bunch of ignitions, all of that; yeah that 's the ticket, 
dazzle 'em with brilliance or baffle 'em with bs {basic science}.)
jofarr, soddy tn

----- Original Message ----- 
From: "Doug Mueller" <rotaryrx6@cox.net>
>
> "The rotary engine is a 6 stroke internal combustion engine. I know, 
> people
> will probably start screaming at me for this so let's get into a little
> explanation as to why and how typical mathematical formulas for piston
> engines don't work.

> 2 stroke engine (up, down) - 1 complete crankshaft revolution.
> 4 stroke engine (up, down, up, down) - 2 complete crankshaft revolutions.
> 6 stroke (rotary) engine (up, down, up, down, up, down) - 3 complete
> crankshaft (eccentric shaft) revolutions.

> See a pattern? All of these engines though are still 4 cycle engines! They 
> are
> different stroke engines though so the amount of work they do per time is
> very different. A 2 stroke engine does twice the work per amount of time 
> that
> a 4 stroke does. Don't believe me? Go race 2-80cc motorcycles, 1-2 stroke
> and 1-4 stroke and see who wins! This must mean that the rotary engine
> does the least amount of work per time than both other engine types. Yes 
> it
> does. But, unlike a piston engine, it uses 3 sides of it's piston (rotor) 
> at a
> time. In reality it makes no difference if we have 1 rotor with 3 usable 
> faces or
> 6 rotors with 1 usable face each as in a piston engine.