What is the upper curvature of the airfoil called?

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Multiple Choice

What is the upper curvature of the airfoil called?

Explanation:
Camber describes how an airfoil’s surfaces bend relative to a straight chord. The curvature of the upper surface is referred to as the upper camber, while the curvature of the lower surface would be the lower camber. The camber line is the mean line that sits between the upper and lower surfaces and represents the overall camber of the profile. The center of pressure is a separate aerodynamic concept related to where the resultant lift force acts, not to surface curvature. So the term for the curvature on the top surface is upper camber.

Camber describes how an airfoil’s surfaces bend relative to a straight chord. The curvature of the upper surface is referred to as the upper camber, while the curvature of the lower surface would be the lower camber. The camber line is the mean line that sits between the upper and lower surfaces and represents the overall camber of the profile. The center of pressure is a separate aerodynamic concept related to where the resultant lift force acts, not to surface curvature. So the term for the curvature on the top surface is upper camber.

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