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Is airfoil can be characterized by the relation between the angle of attack, lift coefficient and drag coefficient?

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Is airfoil can be characterized by the relation between the angle of attack, lift coefficient and drag coefficient?

(a) True

(b) False

The question was asked in final exam.

My question is taken from Airfoil Characteristics topic in section Incompressible Flow over Airfoils of Aerodynamics

1 Answer

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Best answer
Correct option is (a) True

For explanation: Airfoil can be characterized by the relation between an angle of attack, lift coefficient and drag coefficient. Where a propeller can be described in terms of advance ratio, thrust coefficient and power coefficient. The efficiency which corresponds to the lift-drag ratio of a wing can be calculated from these coefficients.

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