What is the primary function of the AFCS?

The primary function of the Automatic Flight Control System (AFCS) is flight guidance. The AFCS helps to control various aspects of an aircraft's flight path, providing stability and precision in managing the aircraft's attitude, altitude, and speed. This system allows the aircraft to maintain a set course through automation, enabling the crew to focus on other critical tasks during flight.

In the context of aviation, flight guidance encompasses various automated tasks such as maintaining level flight, following a specific flight plan, and adhering to navigation protocols. The system uses inputs from various sensors and instruments to adjust the control surfaces of the aircraft accordingly, ensuring optimal performance and safety.

While emergency landing guidance, cabin pressure control, and fuel management are crucial elements in aircraft operation, they serve different purposes and are not the primary function of the AFCS. Emergency landing guidance may be part of the broader safety protocols but does not define the core role of the flight control system. Similarly, cabin pressure control and fuel management involve separate systems that are vital for operational efficiency and safety, but they do not relate directly to the automated guidance of the aircraft in flight.