What happens if NAV mode is not selected on the EGI knob before taxiing?

What happens if NAV mode is not selected on the EGI knob before taxiing?

• A. The aircraft will remain in manual mode
• B. The aircraft will automatically switch to NAV mode
• C. The aircraft will issue a warning
• D. The aircraft will shut down

Answer: (B)

The scenario described relates to the functionality of the EGI (Embedded GPS/Inertial) system used in aircraft navigation. If NAV mode is not selected on the EGI knob before taxiing, the aircraft does not default to automatic navigation mode; instead, it would remain in its existing operational mode, which is typically manual mode. In most avionics configurations, certain settings need to be intentionally set by the operator before taxiing to ensure the aircraft is in the desired mode for safe operation. If the aircraft were to switch to NAV mode automatically without user intervention, it could introduce significant risks if the pilot has not fully prepared or checked the equipment. The correct understanding is that when NAV mode is not selected, the avionics system is designed to maintain the current mode of operation until the pilot actively chooses to engage NAV mode. Therefore, it is crucial for pilots to confirm that the navigation settings are correctly configured before starting the taxi process to ensure operational safety.

The scenario described relates to the functionality of the EGI (Embedded GPS/Inertial) system used in aircraft navigation. If NAV mode is not selected on the EGI knob before taxiing, the aircraft does not default to automatic navigation mode; instead, it would remain in its existing operational mode, which is typically manual mode.

In most avionics configurations, certain settings need to be intentionally set by the operator before taxiing to ensure the aircraft is in the desired mode for safe operation. If the aircraft were to switch to NAV mode automatically without user intervention, it could introduce significant risks if the pilot has not fully prepared or checked the equipment.

The correct understanding is that when NAV mode is not selected, the avionics system is designed to maintain the current mode of operation until the pilot actively chooses to engage NAV mode. Therefore, it is crucial for pilots to confirm that the navigation settings are correctly configured before starting the taxi process to ensure operational safety.