Centre of Pressure

The centre of pressure is the theoretical point on an aerofoil's chord line where the total sum of all aerodynamic pressure forces — both lift and drag — is considered to act. As the angle of attack increases during normal flight, the centre of pressure typically moves forward along the chord line.

Key Points

• •It is the focal point of the total aerodynamic reaction on the wing.
• •Its position moves forward as the angle of attack increases, until the point of stall.
• •The distance between the centre of pressure and the <strong>centre of gravity</strong> strongly influences longitudinal stability.

Related Terms