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Having a different zero angle of attack along span-wise locations is termed as______(a) Washout(b) Geometric twist(c) Aerodynamic twist(d) WashinI have been asked this question in an online interview.Enquiry is from The Vortex Filament, the Biot-Savart Law, Helmholtz Theorem topic in section Flow over Airfoils over Finite Wing of Aerodynamics

Answer»

The correct answer is (c) AERODYNAMIC twist

For explanation: For a finite wing, the zero LIFT angle of attack can VARY along the span-wise DIRECTION for different airfoil sections. This condition is known as aerodynamic lift.



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