Baobab,
The rotor blades are attached to the hub(which sits on top of the power delivery shaft from the gearbox/engine) the hub is sort of sat on a gimble, that is attached to the collective that is the pilots control stick( cyclic in Heli.. joystick in A/C) when you move the cyclic Left or right or forward or to the rear(or indeed any angle you command) if the rotor( thats the collective name for the group of blades attached to the hub) is spinning the flow of air being collected by the rotor blades is deflected or directed to the direction of the gimbled rotor hub which in turn is controlled by the pilot holding the stick.
In otherwords if you are in the air or on the ground, with power available to the rotor the Heli would move into the commanded position of the stick in the pilots hand.
Peter R-B
Lancashire
UK
