FIELD: determination of characteristics of flow of fluid medium running against surface of vehicle. SUBSTANCE: given system includes at least one first pressure transducer to receive signals of dynamic pressure generated by convected boundary layer of flow of fluid medium. One row of second pressure transducers as minimum is positioned behind first pressure transducer. Acoustic transducer are used in the capacity of transducers of dynamic pressure. Transducers are mounted on surface of vehicle flush with surface. System also has aid to receive first and second output signals, to determine time of propagation of vibrations from first transducer to each transducer of second row and to compute rate of convection of variations of pressure. System provides for obtainment of true data on velocity of air flow, M number, absolute temperature, barometric height and angle of attack. EFFECT: enhanced functional efficiency of system. 9 cl, 9 dwg
