Hi Lu,
You provoke thought, thanks.
You're hitting on a number of subjects. Here are a couple of answers. I'll get back on the others.
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The enclosed segment has been moved to [Gyroscopic Precession - Revisited] and is about to be cut from here.
"If you have an infinitely rigid rotor you in effect have a gyroscope."
You have to forget gyroscopic precession & the helicopter rotor. For gyroscopic precession to take place, the rotating device must have considerable [Angular Momentum] A helicopter's rotor does not have enough.
Consider a toy gyroscope on a vertical axis. Bring it up to speed. A minute later it is still spinning, and the disk is still horizontal.
Now lets consider a 'type' of 2-bladed helicopter rotor, which has round 'no lift' blades. We'll make it from a 30-foot long by 2" diameter steel pipe. Drill a hole through both walls at 15-feet from the end and weld in a rod (axle), which extends out both holes. Now spin the horizontal pipe, somehow, on its vertical (rod) axis to about 400 rpm. When released, it will slow and fall over within a second or two.
They ain't the same thing.
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"If I understand it correctly the advancing blade or rotation on the right side is counter clockwise as viewed from above and the left rotor is rotating clockwise as viewed from above. "
A small point. Flettner originally had them rotating in the direction you mention. He then changed them so that the higher inside blades are advancing. (i.e. Port ~ CCW and Starboard - CW). This was done to give speed stability.
Back with more.
