T-45A UJPT, E2-C2, ADV & IUT Eng-13
The brakes/anti-skid system is designed to
provide maximum effective braking power
on all runway surfaces. When engaged, the
anti-skid system regulates brake pressure.
Speed sensors continuously monitor the
rate at which the wheels are spinning down.
If one wheel is spinning down more rapidly
than the other (skid starting), the anti-skid
system acts by dumping pressure to both
wheel brakes until both wheels are again
spinning at the same rate.
HYD 1 produces the hydraulic pressure
used by the brakes/anti-skid system. If HYD
1 fails, operation of the brake system
depends on the wheel brake/emergency flap
accumulator for hydraulic pressure, in which
case the anti-skid system must be set to
OFF or it will rapidly deplete the hydraulic
pressure maintained in the wheel brake/
emergency flap accumulator. Cockpit
controls and indicators used to operate the
brakes/anti-skid system include; the brake
pedals, the BRAKE (wheel brake/
emergency flap accumulator) pressure
gauge, the PARK BRAKE caution light, the
PARKING BRAKE handle, the ANTI-SKID
switch, the ANTI-SKID caution light, the
ANTI-SKID advisory light, and the BRAKE
PRESSURE indicator lights. An additional
wheel brake/emergency flap accumulator
pressure gauge is located in the right main
wheelwell on the exterior of the aircraft.