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True, Calibrated & Equivalent Airspeed

Inside this lesson
  • Define IAS, CAS, EAS, and TAS and the relationship between them
  • Calculate dynamic pressure and the density ratio (sigma)
  • Convert between EAS and TAS at a given altitude

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Educational content covering topics typical of an undergraduate aerospace-engineering curriculum. Not a substitute for accredited coursework, and not suitable for real aircraft or spacecraft design, operation, or maintenance decisions without review by a licensed professional engineer. Regulatory and certification references are descriptive context only. This course is not flight training and is not preparation for any pilot or regulatory examination; the capstone produces an educational paper design only.