For example, in the exemplary embodiment, control system are coupled to {TAIL ~ a rotor control} 41 for generally controlling {HEAD ~ rotor} 18 
For example , in the exemplary embodiment , control system are coupled to { TAIL ~ a rotor control } 41 for generally controlling { HEAD ~ rotor } 18
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH