A ground vehicle test system was designed for aerodynamic performance tests of high altitude propeller of airship,which is used to simulate to propeller's wind tunnel test at different wind speed in low density circumstance. This system is consisted of stable power supply,servo motors,a two-component balance constructed by tension-compression sensors,ultrasonic anemometer,and high speed data acquisition module,which are loaded on a truck. The graphical programming language LABVIEW for developing virtual ins...