Measurement of Airfoil sectional properties Objective   The basic information from which all aerodynamic section properties can be evaluated is the pressure distribution around the profile. In this experiment, an airfoil model instrumented with appropriate pressure taps on the surface shall be used to measure the pressure distribution around an aerofoil and then calculate the section properties such as lift, drag and pitching moment coefficients. In addition total drag of the airfoil will be measured using a wake rake.