Multiple choice

The speed corrected for density variation is called as

  1. CAS

  2. EAS

  3. TAS

  4. GS
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

EAS (Equivalent Air Speed) is the airspeed corrected for density variations. It represents the speed at sea level that would produce the same dynamic pressure as the true airspeed at altitude. CAS is Calibrated Air Speed (instrument error corrected), TAS is True Air Speed (actual speed through air), and GS is Ground Speed (speed relative to ground).

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