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← TechnologyWhich control outcome occurs when a turboprop aircraft flies in icing conditions without activated de-icing systems?
A)Increased propeller blade stall angle✓
B)Enhanced thrust-specific fuel consumption
C)Decreased turbine inlet gas temperature
D)Improved compressor surge margin
💡 Explanation
Ice accumulation on the propeller blades distorts their airfoil shape, causing increased separation and a higher effective angle of attack via induced drag, therefore the stall angle must increase, rather than affecting fuel consumption or compressor dynamics because the primary effect is on the blade aerodynamics.
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