{HEAD ~ The rotor assembly} 7, wherein {TAIL ~ the collective control linkage} for each of the blades comprises: 
wherein
{ HEAD ~ The rotor assembly } 7 , wherein { TAIL ~ the collective control linkage } for each of the blades comprises :
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH