Question on attack points for airfoils

[ar81]

What are attack points of airfoils?
1.Point where air hits first in aerodynamic flow
2.A point in the middle of the airfoils
3.A point where aerosurface is attached to other parts
4.A point where force is applied
5.Other??

[Urwumpe]

The attack point of a airfoil is also called the centre of pressure (COP). It is the point where the force is applied. The point is practically speaking calculated by summing up all pressure forces of the airfoil.



Message modifié ( 30-01-2008 14:40 )

[ar81]

For a rectangular airfoil, we could say it is in near the middle point between the 4 cornerns of the rectangle?