scope:

This specification covers the brake system design requirements for aircraft equipped with wheel-type landing gear.

The brake systems shall be either hydraulic or pneumatic; manually operated, power operated, manual-power operated; and shall be of the following types:

Type I - Manual pressure generating: The control unit generates pressure by manual actuation.

Type II - Power pressure generating: The control unit meters pressure from a power generating system.

Type III - Manual power pressure generating; Pressure is manually generated in a slave control unit which in turn operates the main control unit which meters fluid from a pressure generating system.

Type IV - Power-boosted manual pressure generating: The control unit generates pressure by manual actuation and, in addition, the manually generated pressure is boosted by pressure from a power generating system.

Type V - Power brake valve with emergency master cylinder: One part of the control unit meters pressure from a power generating system, and another part of the control unit serves as a standby manual pressure generating unit when the power system is inoperative.

intended Use:

The design requirements specified herein are intended for use in the design of brake systems used on aircraft equipped with wheel-type landing gear.