Calibrated airspeed (CAS) Calculator

Calibrated airspeed (CAS) is derived from indicated airspeed (IAS) by correcting for instrument and installation errors. While there isn’t a single mathematical formula to directly calculate CAS, it’s typically obtained by applying correction factors to the indicated airspeed. The formula to calculate Calibrated airspeed as follows:

Where:

  • CAS is the calibrated airspeed,
  • IAS is the indicated airspeed, and
  • Correction Factor is the factor applied to adjust for instrument and installation errors.

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