Normally controlled by one of three electrical motors which are signaled by the ELACs or SECs.

Normally controlled by one of three electrical motors which are signaled by the ELACs or SECs.

• A. Control surface actuators
• B. Terminal Horizontal Stabilizer (THS)
• C. Flap actuation system
• D. Throttle quadrant system

Answer: (B)

The Terminal Horizontal Stabilizer (THS) is indeed controlled by one of three electrical motors, which operate under the supervision of the Elevator and Aileron Computer (ELAC) or the Spoiler and Elevator Computer (SEC). In the A320 aircraft, the THS is a key component that optimizes the aerodynamic characteristics and stability of the aircraft during flight. The ELAC and SEC systems are responsible for processing flight control inputs and providing signals to the THS motors to adjust the trim of the horizontal stabilizer. This adjustment is crucial for maintaining stable flight and enhancing fuel efficiency, as it allows for fine-tuning of the aircraft's pitch attitude. The reference to controlling these systems through electrical motors signifies the modern design approach of the A320, moving away from purely mechanical systems towards more integrated electronic controls. This encapsulates the advantages of reduced weight and improved reliability in the aircraft's flight control mechanisms.

The Terminal Horizontal Stabilizer (THS) is indeed controlled by one of three electrical motors, which operate under the supervision of the Elevator and Aileron Computer (ELAC) or the Spoiler and Elevator Computer (SEC). In the A320 aircraft, the THS is a key component that optimizes the aerodynamic characteristics and stability of the aircraft during flight.

The ELAC and SEC systems are responsible for processing flight control inputs and providing signals to the THS motors to adjust the trim of the horizontal stabilizer. This adjustment is crucial for maintaining stable flight and enhancing fuel efficiency, as it allows for fine-tuning of the aircraft's pitch attitude.

The reference to controlling these systems through electrical motors signifies the modern design approach of the A320, moving away from purely mechanical systems towards more integrated electronic controls. This encapsulates the advantages of reduced weight and improved reliability in the aircraft's flight control mechanisms.