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For forward flight, the airfoil of the blade have fixed stall characteristics.

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in Aerodynamics by (773k points)
For forward flight, the airfoil of the blade have fixed stall characteristics.

(a) True

(b) False

I had been asked this question in an online interview.

My doubt is from Blades and Propellers in division Helicopter Dynamics of Aerodynamics

1 Answer

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Best answer
Correct option is (b) False

The best explanation: When the helicopter is in forward motion, when the blade rotates, stall occurs periodically. Therefore the airfoils have unsteady stall characteristics. Good dynamics are determined by good stall characteristics.

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