What do brake debooster cylinders accomplish in a power brake control system?

Brake debooster cylinders play a crucial role in a power brake control system by modulating the brake pressure according to the operational needs of the aircraft. They specifically decrease the pressure applied to the brakes while simultaneously increasing the fluid flow, which helps maintain a controlled application of braking force.

When the pilot applies the brakes, the power brake system generates high hydraulic pressure. The debooster cylinders then lower this pressure to a level that is more suitable for effective braking without overwhelming the brake system, which could cause tire skidding or excessive wear. By achieving this balance, they contribute to a smoother and more controllable braking experience.

In addition to reducing brake pressure, the enhanced fluid flow allows for quicker response times and better modulation of braking forces, ensuring that the aircraft can decelerate smoothly and safely during landing or on the runway. Thus, the function of the brake debooster cylinders is fundamental to the effective operation of the aircraft's braking system.