An acoustic airspeed sensor system , comprising: at least one acoustic transmitter configured to provide an acoustic pulse ; a plurality of acoustic receivers (14A-14L), including at least: a first acoustic receiver positioned at a first radial distance from the at least one acoustic transmitter , the first acoustic receiver configured to: receive the acoustic pulse at a first time; and output a first receiver signal ; a second acoustic receiver positioned at a second radial distance from the at least one acoustic transmitter , the second acoustic receiver configured to: receive the acoustic pulse at a second time; and output a second receiver signal ; and an air data module operatively connected to the first acoustic receiver and the second acoustic receiver , the air data module configured to: receive the first receiver signal and the second receiver signal ; determine a first signal delay between receiving the first receiver signal and transmission of the acoustic pulse by the acoustic transmitter ; determine a second signal delay between receiving the second receiver signal and transmission of the acoustic pulse by the acoustic transmitter ; determine a wind angle based on the first signal delay and the second signal delay; determine true air speed, TAS, based upon the first signal delay, the second signal delay, and the wind angle; and output a TAS signal indicative of the TAS. at least one acoustic transmitter configured to provide an acoustic pulse ; a plurality of acoustic receivers (14A-14L), including at least: a first acoustic receiver positioned at a first radial distance from the at least one acoustic transmitter , the first acoustic receiver configured to: receive the acoustic pulse at a first time; and output a first receiver signal ; a second acoustic receiver positioned at a second radial distance from the at least one acoustic transmitter , the second acoustic receiver configured to: receive the acoustic pulse at a second time; and output a second receiver signal ; and a first acoustic receiver positioned at a first radial distance from the at least one acoustic transmitter , the first acoustic receiver configured to: receive the acoustic pulse at a first time; and output a first receiver signal ; receive the acoustic pulse at a first time; and output a first receiver signal ; a second acoustic receiver positioned at a second radial distance from the at least one acoustic transmitter , the second acoustic receiver configured to: receive the acoustic pulse at a second time; and output a second receiver signal ; and receive the acoustic pulse at a second time; and output a second receiver signal ; and an air data module operatively connected to the first acoustic receiver and the second acoustic receiver , the air data module configured to: receive the first receiver signal and the second receiver signal ; determine a first signal delay between receiving the first receiver signal and transmission of the acoustic pulse by the acoustic transmitter ; determine a second signal delay between receiving the second receiver signal and transmission of the acoustic pulse by the acoustic transmitter ; determine a wind angle based on the first signal delay and the second signal delay; determine true air speed, TAS, based upon the first signal delay, the second signal delay, and the wind angle; and receive the first receiver signal and the second receiver signal ; determine a first signal delay between receiving the first receiver signal and transmission of the acoustic pulse by the acoustic transmitter ; determine a second signal delay between receiving the second receiver signal and transmission of the acoustic pulse by the acoustic transmitter ; determine a wind angle based on the first signal delay and the second signal delay; determine true air speed, TAS, based upon the first signal delay, the second signal delay, and the wind angle; and output a TAS signal indicative of the TAS. <EOS>