What does hydraulic System A include for brake functionality?

• A. Normal brakes
• B. Alternate brakes
• C. Rudder control
• D. Yaw damper

Answer: (B)

Hydraulic System A typically refers to a specific hydraulic system that provides critical functions related to an aircraft's braking capabilities. The inclusion of alternate brakes indicates that this system is designed to ensure braking functionality even in the event of a primary system failure. Alternate brakes are a backup to normal brakes, allowing for continued operation and safety under adverse conditions.

Normal brakes usually rely on the primary hydraulic system, which can be compromised, whereas alternate brakes allow the pilot to maintain control over the aircraft’s speed and stopping power without relying solely on the main hydraulic system. This capability is crucial, particularly in emergency scenarios, where a reliable braking system is essential for safe landing and ground maneuvering.

Other options such as rudder control and yaw damper are related to flight control and stability but do not directly pertain to the primary function of braking within the hydraulic system.