What term denotes the speed of an airplane shown on its pitot-static airspeed indicator calibrated to reflect standard atmosphere adiabatic compressible flow at sea level, uncorrected for airspeed system errors?

What term denotes the speed of an airplane shown on its pitot-static airspeed indicator calibrated to reflect standard atmosphere adiabatic compressible flow at sea level, uncorrected for airspeed system errors?

• A. Indicated Airspeed
• B. Instrument
• C. In-Flight Shutdown
• D. Gyrodyne

Answer: (A)

The measurement shown by the pitot-static airspeed indicator is Indicated Airspeed. This value comes from the dynamic pressure of the air the airplane is moving through and is scaled to reflect standard sea‑level atmospheric conditions, assuming adiabatic compressible flow. It is read directly from the instrument and is not corrected for airspeed system errors or installation/position errors. That’s why it differs from calibrated airspeed (which corrects for instrument and position errors) and true airspeed (which also accounts for air density changes with altitude). The other options don’t describe this speed readout, so the best fit is Indicated Airspeed.

The measurement shown by the pitot-static airspeed indicator is Indicated Airspeed. This value comes from the dynamic pressure of the air the airplane is moving through and is scaled to reflect standard sea‑level atmospheric conditions, assuming adiabatic compressible flow. It is read directly from the instrument and is not corrected for airspeed system errors or installation/position errors. That’s why it differs from calibrated airspeed (which corrects for instrument and position errors) and true airspeed (which also accounts for air density changes with altitude). The other options don’t describe this speed readout, so the best fit is Indicated Airspeed.