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