What is FAC on Airbus A320? (Flight Augmentation Computer)

The Flight Augmentation Computer (FAC) is a vital component of the Airbus A320 aircraft. It plays a crucial role in ensuring the safety and stability of the aircraft by providing advanced control and decision-making capabilities. The FAC is responsible for processing and interpreting various flight control inputs, as well as executing and monitoring the aircraft’s flight control laws. In simpler terms, it can be seen as the “brain” behind the aircraft’s flight control system, constantly analyzing data and making adjustments to ensure a smooth and controlled flight.

How does the Flight Augmentation Computer work?

The Flight Augmentation Computer works in tandem with other flight control systems and sensors on the Airbus A320 to provide a comprehensive flight control solution. It receives input signals from various sources, including the pilot’s control inputs, inertial sensors, air data sensors, and other avionics systems. These inputs are analyzed in real-time, allowing the FAC to calculate and generate appropriate control commands for the aircraft’s control surfaces.

One of the key functions of the Flight Augmentation Computer is to implement the aircraft’s flight control laws. These laws define the aircraft’s behavior and response to different flight conditions, such as normal flight, approach and landing, and abnormal situations. The FAC continuously monitors the aircraft’s flight parameters and adapts the control laws accordingly to provide optimal control and stability.

Advantages of the Flight Augmentation Computer

The Flight Augmentation Computer offers several advantages that enhance the overall performance and safety of the Airbus A320 aircraft.

1. Precise Control and Stability

One of the primary benefits of the Flight Augmentation Computer is its ability to provide precise control and stability to the aircraft. It uses advanced algorithms and control laws to analyze and process flight data, allowing for accurate and timely adjustments to the control surfaces. This ensures that the aircraft maintains its desired flight path and response, even in challenging conditions such as turbulence.

Additionally, the FAC constantly monitors the aircraft’s flight parameters, such as airspeed, altitude, and attitude, to detect and correct any deviations from the desired values. It automatically adjusts the control surfaces to maintain stability and prevent the aircraft from exceeding its operational limits.

2. Fault Detection and Redundancy

The Flight Augmentation Computer is equipped with extensive fault detection and redundancy features. It constantly checks the integrity of its own hardware and software, as well as the inputs from other systems and sensors. If it detects a fault or discrepancy, it takes appropriate actions to ensure the safety of the aircraft.

In the event of a failure or loss of functionality in one of the FACs, the Airbus A320 is designed to have multiple redundant systems. These redundant FACs take over the responsibilities of the failed unit, ensuring that the aircraft remains controllable and safe. This redundancy greatly enhances the overall reliability and resilience of the flight control system.

3. Flexibility and Customization

The Flight Augmentation Computer on the Airbus A320 allows for flexibility and customization based on specific airline requirements and pilot preferences. It offers various modes and settings that can be adjusted to optimize the aircraft’s performance for different flight profiles and operational needs.

Furthermore, the FAC provides pilots with the ability to make manual control inputs and overrides, giving them a high degree of control authority if needed. This feature ensures that the aircraft can be flown safely and effectively in manual flight situations or during abnormal conditions.

In summary, the Flight Augmentation Computer (FAC) is an integral part of the Airbus A320 aircraft, providing advanced control and decision-making capabilities. Its precise control and stability, fault detection and redundancy features, and flexibility and customization options make it an essential component for safe and efficient flight operations.

For More: What is CPCU on Airbus A320? (Cabin Pressure Controller Unit)