Returning to FIG4F, control of blade row spacing, {HEAD ~ pitch} and applied shaft horsepower is accomplished through the combined actions of {TAIL ~ the airplane flight management system} and the full authority digital engine control unit which control blade scheduling system 60 
Returning to FIG4F , control of blade row spacing , { HEAD ~ pitch } and applied shaft horsepower is accomplished through the combined actions of { TAIL ~ the airplane flight management system } and the full authority digital engine control unit which control blade scheduling system 60
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH