An airfoil or aerofoil is a streamlined body that is capable of generating significantly more lift than drag. Wings, sails and propeller blades are examples of airfoils. Foils which work in a similar
Lift and drag curves for a typical airfoil
An airfoil section is displayed at the tip of this Denney Kitfox aircraft, built in 1991.
Airfoil profile of a Kamov Ka-26 helicopter's lower rotor blade
Downforce is a downwards lift force created by the aerodynamic features of a vehicle. If the vehicle is a car, the purpose of downforce is to allow the car to travel faster by increasing the vertical
Three different styles of front wings from three different Formula One eras, all designed to produce downforce at the front end of the respective race cars. Top to bottom: Ferrari 312T4 (1979), Lotus 79 (1978), McLaren MP4/11 (1996)
The CFRP floor of the Panoz DP01 ChampCar exhibiting complex aerodynamic design.
The underside curves of the Panoz DP01 Champ Car.
The rear wing of a 1998 Formula One car, with three aerodynamic elements (1, 2, 3). The rows of holes for adjustment of the angle of attack (4) and installation of another element (5) are visible on the wing's endplate.