Awblain - Cierva couldn't understand why his models flew successfully but the full size aircraft rolled over - eventually he realised that the rattan that he made the model's blades from was flexible, whereas his carefully braced full size rotor wasn't.
I think the blades tilted independently from the hub rather than the other way round
Carry on with your angular momentum theories but I think you have been pipped to the post for this year's Nobel prize by the guys validating the Big Bang theory analysing ripples within ripples of decaying light. - Their work is about as much use to a helicopter pilot as your theories of blade movement
