{HEAD ~ The air vehicle propulsion system} 10 wherein the outer blade row is upstream of the inner blade row in a tractor configuration and power distributed by the power shaft to {TAIL ~ the outer blade row} as controlled by the outer blade row pitch control unit is less than power distributed to the inner blade row as controlled by the inner blade row pitch control unit with the outer blade row in an extended position 
{ HEAD ~ The air vehicle propulsion system } 10 wherein the outer blade row is upstream of the inner blade row in a tractor configuration and power distributed by the power shaft to { TAIL ~ the outer blade row } as controlled by the outer blade row pitch control unit is less than power distributed to the inner blade row as controlled by the inner blade row pitch control unit with the outer blade row in an extended position
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH