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