Sorry Al,

I was not clear, certainly was meaning to say " around the e-shaft lobe center, however, since the lobe center and the rotor center is co-located with the lobe center, it does rotate around its own center, or not?
Tricky, isn't it.

Richard Sohn
N2071U


----- Original Message ----- From: "Al Gietzen" <ALVentures@cox.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, February 09, 2008 12:28 PM
Subject: [FlyRotary] Re: Rotor Weight Codes


the rotor is not sliding "back and forth" , it only makes a clean circular
motion around its own center. The weight only is significant for the
centrifugal force on the e-shaft lobe.

Richard;

Unless I'm mistaken, or misunderstand what you're saying; the rotor does not
rotate around its own center.  And the CM of the rotor does not rotate
around the center of the e-shaft, but rather follows the center of the
e-shaft lobe.  Watch the animation on Tracy's web site.

Al


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