Indicated Airspeed

+**Indicated Airspeed**

+Indicated Airspeed (IAS) is the speed shown directly on an aircraft's [airspeed indicator](/wiki/airspeed_indicator). It is derived from the dynamic pressure sensed by the [pitot tube](/wiki/pitot_tube) and remains uncorrected for instrument error, air density, or altitude variations.

+## See also

+- [True Airspeed](/wiki/true_airspeed)

+- [Calibrated Airspeed](/wiki/calibrated_airspeed)