Wheel 1,775 1,726 97% 1,726 97% 3rd Stage Turbine Wheel 4,550 2,890 64% 2,890 64% 4th Stage Turbine Wheel 4,550 2,890 64% 2,890 64% Compressor Impeller 7,500 5,857 78% 5,840 77% Engine Gearbox On Condition Fuel Nozzle 2,000 340 17% 345 17% Compressor Bleed Valve 1.500 364 24% 1,298