In the case of aerodynamical resultant forces acting on the airfoil,
the resultant force can be decomposed into two sets of components:

Question

In the case of aerodynamical resultant forces acting on the airfoil, 
 the resultant force can be decomposed into two sets of components:

Accepted Answer

relative to the chord line:  N - normal force; A - axial force  relative to te freestream velocity: L- lift, D - drag

Answer

relative to the chord line: L- lift, D - drag 
 
 relative to te freestream velocity: N - normal force; A - axial force

Answer

"x" wise, "y" wise and "z" wise forces according to an arbitrary chosen reference frame

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