Multiple choice

___ is the indicated airspeed corrected for installation, position and instrument errors.

  1. IAS

  2. CAS

  3. TAS

  4. GS

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Calibrated Airspeed (CAS) is Indicated Airspeed (IAS) corrected for installation and instrument errors. IAS is what the airspeed indicator shows directly, while TAS (True Airspeed) and GS (Ground Speed) account for other factors like altitude and wind.