On modern large aircraft, which electronic device typically monitors flight parameters and performs autopilot functions?

On modern large aircraft, which electronic device typically monitors flight parameters and performs autopilot functions?

• A. Inertial reference system
• B. VHF communication radio
• C. Flight data recorder
• D. Flight management computer

Answer: (D)

The flight management computer, as part of the Flight Management System, is the device that centralizes navigation, performance planning, and guidance to drive the autopilot. It continuously compares actual flight data—such as speed, altitude, and position—against the flight plan, loads the optimal path, and sends guiding commands to the autopilot and flight guidance system. This makes it the key component that both monitors flight parameters and performs autopilot functions on modern large aircraft. The inertial reference system provides attitude and position data but doesn’t control the aircraft or manage the flight plan. The flight data recorder simply captures data for post-flight analysis, not real-time control. The VHF communications radio handles air-to-ground and air-to-air communications, not flight parameter monitoring or autopilot control.

The flight management computer, as part of the Flight Management System, is the device that centralizes navigation, performance planning, and guidance to drive the autopilot. It continuously compares actual flight data—such as speed, altitude, and position—against the flight plan, loads the optimal path, and sends guiding commands to the autopilot and flight guidance system. This makes it the key component that both monitors flight parameters and performs autopilot functions on modern large aircraft.

The inertial reference system provides attitude and position data but doesn’t control the aircraft or manage the flight plan. The flight data recorder simply captures data for post-flight analysis, not real-time control. The VHF communications radio handles air-to-ground and air-to-air communications, not flight parameter monitoring or autopilot control.