Sensor system for an aircraft for determining a velocity of air flowing past the aircraft, the sensor system comprising: a first sensor configured for being arranged at a structure of the aircraft; a second sensor for being arranged at the structure of the aircraft; an evaluation device; wherein the first sensor is configured for determining a first response of the structure to a first local pressure fluctuation of a boundary layer of the air flowing past the aircraft; wherein the first sensor is configured for generating a first signal on the basis of said determined first response; wherein the evaluation device is configured for processing the first signal and for determining an actual air velocity on the basis of the first signal; wherein the second sensor is configured for determining a second response of the structure to a second local pressure fluctuation of the boundary layer of the air flowing past the aircraft; wherein the second sensor is configured for generating a second signal on the basis of said determined second response; wherein the evaluation device is configured for processing the first signal and the second signal and for determining a further actual air velocity on the basis of the first signal and the second signal by: determining a correlation function between the first signal and the second signal and determining the further actual air velocity on the basis of the determined correlation function; determining a velocity of eddies of a boundary layer of the air flowing past the aircraft on the basis of the correlation function; wherein the evaluation device comprises an eddy velocity/air velocity database, which eddy velocity/air velocity database comprises a plurality of third-type entries corresponding to velocities of eddies and a plurality of fourth-type entries corresponding to air velocities, the third-type entries being linked to the fourth-type entries; looking-up an air velocity in the eddy velocity/air velocity database on the basis of the eddy velocity/air velocity. a first sensor configured for being arranged at a structure of the aircraft; a second sensor for being arranged at the structure of the aircraft; an evaluation device; wherein the first sensor is configured for determining a first response of the structure to a first local pressure fluctuation of a boundary layer of the air flowing past the aircraft; wherein the first sensor is configured for generating a first signal on the basis of said determined first response; wherein the evaluation device is configured for processing the first signal and for determining an actual air velocity on the basis of the first signal; wherein the second sensor is configured for determining a second response of the structure to a second local pressure fluctuation of the boundary layer of the air flowing past the aircraft; wherein the second sensor is configured for generating a second signal on the basis of said determined second response; wherein the evaluation device is configured for processing the first signal and the second signal and for determining a further actual air velocity on the basis of the first signal and the second signal by: determining a correlation function between the first signal and the second signal and determining the further actual air velocity on the basis of the determined correlation function; determining a velocity of eddies of a boundary layer of the air flowing past the aircraft on the basis of the correlation function; wherein the evaluation device comprises an eddy velocity/air velocity database, which eddy velocity/air velocity database comprises a plurality of third-type entries corresponding to velocities of eddies and a plurality of fourth-type entries corresponding to air velocities, the third-type entries being linked to the fourth-type entries; looking-up an air velocity in the eddy velocity/air velocity database on the basis of the eddy velocity/air velocity. determining a correlation function between the first signal and the second signal and determining the further actual air velocity on the basis of the determined correlation function; determining a velocity of eddies of a boundary layer of the air flowing past the aircraft on the basis of the correlation function; wherein the evaluation device comprises an eddy velocity/air velocity database, which eddy velocity/air velocity database comprises a plurality of third-type entries corresponding to velocities of eddies and a plurality of fourth-type entries corresponding to air velocities, the third-type entries being linked to the fourth-type entries; looking-up an air velocity in the eddy velocity/air velocity database on the basis of the eddy velocity/air velocity.