(aviation) The speed of an aircraft relative to the air through which it is flying.

plural of airspeed

(aviation) An instrument that displays an aircraft's current airspeed.

plural of airspeed indicator

plural of calibrated airspeed

plural of indicated airspeed

plural of equivalent airspeed

plural of true airspeed

(aviation) An aircraft's indicated airspeed corrected for errors introduced by instrument variations and by the position on the aircraft of the sensors of the aircraft's pitot-static system.

(aviation) The speed of an aircraft relative to the air mass within which it is flying.