Robbiee, you'll like this one.
A while back when this subject was running a physicist got involved, and challenged even the most experienced members on here to justify their reasoning why a rotor is not a gyroscope, or even like a gyroscope. After endless debate, some crusty old naval pilot chipped in with:
Sitting in my helicopter on a wild day with rotors running, my AI showed every heave and toss of the ship. My rotor stayed locked in its plane parallel to the deck. The AI is a gyro, the rotor is not.
That was the last post on that thread if I remember. A man after your own heart I guess !