Calibrated Airspeed


Calibrated Airspeed (CAS) is the speed of an aircraft as measured by its pitot-static system and then corrected for position and instrument error to reflect the speed of the aircraft through undisturbed air. CAS is the most accurate indication of the speed of an aircraft in flight, as it is not affected by altitude, temperature, or other environmental factors. It is used by pilots to determine the aircraft's performance, such as takeoff and landing speeds, and to maintain safe flight operations. CAS is typically displayed in knots or miles per hour.


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