Now THAT is a helpful diagram. I saw it clearly.. The lift on the airfoil at first is quite forward causing the blade to move forward. Then as the blade spins faster and faster due to this, the AOA gets closer to blade directiong of travel than plane direction of travel and the lift angle moves closer to mast angle and therefore ceases to continue accelerating the blade, and a balance point is found. The rotor continues to turn.

I was really happy about this until I studied the drawing too long. If that diagram had drag angles included where would they be and why wouldn't they stop the blade. Isn't drag about 90 degrees from lift? Maybe one blade wouldnt move forward by itself without the balancing drag on the other side of the rotor from the other blade?

The wing out the car window thing still has me hung up. I just can't get it.. Here is another drawing showing you whats going on in my mind. Look at the drawing and please tell me what angle you would have to set the AOA of the airfoil so that when the air nozzle is turned on, the blade moves forward, toward the nozzle. I can't imagine there exists such an angle since drag would blow it away from the nozzle in all situations.

http://i5.photobucket.com/albums/y17...Autorotate.jpg

Sorry for being so dense, but I guess I'm the kind of guy that cant rest just knowing that something works, I have to know why. Thanks for your patience.