Airfoil

From Wikipedia, a free encyclopedia written in simple English for easy reading.

Various components of the aerofoil.
Enlarge
Various components of the aerofoil.

An airfoil (in American English, or aerofoil in British English) is the shape of a wing or blade (of a propeller or ship's screw or sail) as seen in cross-section. It is passed through a fluid in order to provide either lift or downforce, depending on its application.

This short article can be made longer. You can help Wikipedia by adding to it.