The braking control system provides dual redundant control of hydraulically
operated wheel braking for an aircraft. A primary hydraulic system
provides hydraulic power for normal operation of the plurality of wheel
brakes, and a secondary hydraulic system provides hydraulic power for
alternate operation of the plurality of wheel brakes. The primary
hydraulic system comprises at least one primary hydraulic fluid control
channel and at least one secondary hydraulic fluid control channel, the
primary and secondary fluid channels being redundant and partitioned among
the plurality of wheel brakes so that even if one of the primary hydraulic
fluid control channels and one of the secondary channels fail to apply
pressure, braking will be lost to only a portion of the wheel brakes and
the loss will be in a symmetrical pattern.
