What does the Indicated Airspeed Indicator display?

What does the Indicated Airspeed Indicator display?

• A. Altitude
• B. AirSpeed as a function of pitot and static pressure
• C. Engine RPM
• D. Fuel flow

Answer: (B)

Indicated Airspeed is determined by the dynamic pressure the aircraft experiences from the pitot-static system. The pitot tube provides ram pressure, while the static port supplies ambient pressure. The difference between these pressures is what the instrument uses to display speed, calibrated to show indicated airspeed (in knots). This reading reflects speed through the air, not altitude or engine RPM or fuel flow, and it’s influenced by air density (true airspeed can differ from IAS at altitude). So the display shows airspeed as a function of pitot and static pressure.

Indicated Airspeed is determined by the dynamic pressure the aircraft experiences from the pitot-static system. The pitot tube provides ram pressure, while the static port supplies ambient pressure. The difference between these pressures is what the instrument uses to display speed, calibrated to show indicated airspeed (in knots). This reading reflects speed through the air, not altitude or engine RPM or fuel flow, and it’s influenced by air density (true airspeed can differ from IAS at altitude). So the display shows airspeed as a function of pitot and static pressure.