Indicated airspeed (IAS) is the measure of an aircraft’s speed relative to the air around it as displayed on the airspeed indicator. It is a crucial parameter for pilots, providing real-time information on the aircraft’s velocity during flight. The formula to calculate Indicated airspeed (IAS) as follows:
Where:
- Vc is the Calibrated airspeed (CAS) in m/s.
- ΔVp is the Velocity Change in m/s.
- Vi is the Indicated airspeed in m/s.