T-45C TS, ADV & IUT ENG-11
Hydraulic Subsystems
position following catapult launch, during non-
catapult operation (line check), or during
landing gear extension. Assume normal
braking is available if the light exstinguishes
after the transition period
NOTE: If the BRK PRESS caution light
illuminates on the catapult with all prelaunch
conditions met, i.e., aircraft in tension, throttle
above 95%, LAUNCH BAR switch selected to
RETRACT, NWS button NOT depressed,
parking brake handle in (OFF) - SUSPEND
THE CATAPULT AND ABORT THE LAUNCH!
4.
Limitations:
During normal carrier and field operations, the BRK
PRESS caution light should not be illuminated. The
light should only illuminate when indicating a system
or indicator circuit failure. If the light illuminates with
all prelaunch conditions met - SUSPEND THE
CATAPULT
5.
Summary:
The brake pressure release system was devised
with the purpose of preventing the possibility of tire
blowout during catapult launch and then dealing with
the emergency arresting landing scenario resulting
from that blown tire. Remember that “no lights” is
what to look for prior to launch. All prelaunch
conditions must be met in order for the brake
pressure to release.
Sg 2, fr 11
C.
Nose wheel steering (NWS)
Fig 15: Nose Wheel
Steering (NWS)
1.
Major components 1.4.9.3.1
System Major
Components
a.
Steering motor: hydraulically powered by HYD
1 system, mechanically moves nose wheel
b.
Gearbox (gear train): mechanically transmits
steering motor movement to nose wheel
c.
Electronic control box
(9-98) Change 4
Page 11-33
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