Linked from
The 25 pages that link to Airfoil, each with the reason it gives.
Aerodynamic liftNarrower topic: An airfoil section is the basic shape whose lift is analyzed.
PropellerNarrower topic: Each propeller blade is an airfoil that generates force as it rotates.
Helicopter rotorNarrower topic: Rotor blades use airfoil sections to generate lift while rotating.
Turbine bladeNarrower topic: Turbine blades use airfoil sections to turn flow while limiting losses.
Leading-edge slatNarrower topic: A slat modifies the effective leading-edge shape of an airfoil.