{HEAD ~ Control} of the horsepower distribution, blade row spacing and {TAIL ~ pitch} by the FADEC allows optimum downstream blade row spacing for maximum swirl recovery and efficiency varying with upstream rotor shaft horsepower and forward airspeed 
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{ HEAD ~ Control } of the horsepower distribution , blade row spacing and { TAIL ~ pitch } by the FADEC allows optimum downstream blade row spacing for maximum swirl recovery and efficiency varying with upstream rotor shaft horsepower and forward airspeed
HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH