If an airfoil is designed to provide lift curve slope as 7.8, then fin – McqOptions

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1.	If an airfoil is designed to provide lift curve slope as 7.8, then find airfoil efficiency. The actual lift curve slope of the airfoil is 7.4.
A.	94.87%
B.	45%
C.	15.6%
D.	98.7%
Answer» B. 45%

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