Center of Pressure by NASA Glenn Research Center
= Center of Pressure by NASA Glenn Research Center
https://www1.grc.nasa.gov/beginners-guide-to-aeronautics/center-of-pressure/[Official NASA Glenn Research Center article]. Sections Center of Pressure and Angle of Attack give the pressure-moment ratio and explain why its location changes with the pressure field. The Aerodynamic Force section distinguishes using that point from retaining a force and pitching moment about an aerodynamic center.