I'm working with data across an airfoil and need some help. We've got Kulite sensor data along 3 chord lengths of a certain NACA airfoil. The case is of an incompressible flow. I need to determine the coefficient of pressure at these sensor locations using total pressure measured and I, therefore, require the static pressure. What we have: Free stream static pressure Free stream total pressure Surface total pressure What I need: Surface static pressure Is this possible in any way? Thanks in advance.