What is the purpose of the hydraulic system in the F/A-18 E/F?

The purpose of the hydraulic system in the F/A-18 E/F is to operate flight control surfaces, landing gear, and brakes. This system utilizes hydraulic fluid to transmit force, enabling precise control over various mechanical components critical for the aircraft's operation. Flight control surfaces, such as ailerons, elevators, and rudders, rely on hydraulic actuators to move efficiently and respond swiftly during flight maneuvers. Additionally, the landing gear and brake systems utilize hydraulic pressure to extend, retract, and apply braking force, which is essential for safe landings and takeoffs.

Understanding the role of the hydraulic system is crucial for the safe and effective maintenance of the aircraft, as it impacts both flight performance and ground operations. The other options do not accurately describe the primary function of the hydraulic system in the context of the F/A-18 E/F. For instance, avionics and radar are powered by electrical systems, engine thrust is controlled by engine management systems, and fuel distribution is handled by its respective fuel management systems.