Thin Airfoil Theory

Learning Goal: I’m working on a aerospace engineering multi-part question and need an explanation and answer to help me learn.

Review chapter 1.5 of Fundamental of Aerodynamics by John D. Anderson.

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Review thin airfoil theory and answer the following questions:

Question 1: If the zero-lift angle of attack of GA(W)-1 airfoil is α=𝛼=-4.2 deg, what are the lift coefficients at α=𝛼=4 and 10 deg? (4 pts)

Question 2: If the moment coefficient around the aerodynamic center of the airfoil is -0.09 at zero angle of attack, what is the moment coefficient at α=𝛼=10 deg? (2 pts)

Question 3: Calculate the moment coefficient around the leading edge for zero angle of attack. (4 pts)


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