What type of airspeed will always be displayed with the gear down?

What type of airspeed will always be displayed with the gear down?

• A. True airspeed (TAS)
• B. Ground speed (GS)
• C. Calibrated airspeed (CAS)
• D. Indicated airspeed (IAS)

Answer: (C)

Indicated airspeed (IAS) is the type of airspeed that is always displayed when the landing gear is down. This measurement reflects the airspeed shown directly on the aircraft’s airspeed indicator and is derived from the dynamic pressure of the air and the local atmospheric pressure as sensed by the pitot-static system. When the gear is extended, the aircraft's systems typically ensure that IAS is prominently displayed because it directly informs the pilot about the speed of the aircraft relative to the ambient air, which is critical for safe operation during phases of flight such as landing or approach. IAS is particularly important for maintaining control and ensuring that the aircraft is flying within its operational limits while configuring for landing. The other types of airspeed listed have specific uses that may not apply as directly when the gear is down. For instance, True Airspeed (TAS) is more relevant for determining the aircraft's speed over the ground in relation to the actual air density, which varies with altitude; Ground Speed (GS) measures the speed relative to the ground, which can differ significantly from airspeed due to wind; and Calibrated Airspeed (CAS) is adjusted for instrument error but is not displayed as prominently as IAS in the cockpit during landing configurations. Hence,

Indicated airspeed (IAS) is the type of airspeed that is always displayed when the landing gear is down. This measurement reflects the airspeed shown directly on the aircraft’s airspeed indicator and is derived from the dynamic pressure of the air and the local atmospheric pressure as sensed by the pitot-static system.

When the gear is extended, the aircraft's systems typically ensure that IAS is prominently displayed because it directly informs the pilot about the speed of the aircraft relative to the ambient air, which is critical for safe operation during phases of flight such as landing or approach. IAS is particularly important for maintaining control and ensuring that the aircraft is flying within its operational limits while configuring for landing.

The other types of airspeed listed have specific uses that may not apply as directly when the gear is down. For instance, True Airspeed (TAS) is more relevant for determining the aircraft's speed over the ground in relation to the actual air density, which varies with altitude; Ground Speed (GS) measures the speed relative to the ground, which can differ significantly from airspeed due to wind; and Calibrated Airspeed (CAS) is adjusted for instrument error but is not displayed as prominently as IAS in the cockpit during landing configurations. Hence,