Hydraulic Subsystems
T-45A UJPT, E2-C2, ADV, & IUT Eng-13
e.
When selected OFF or is shut down due
to malfunction, system serves as
hydraulic shimmy damper for free-
castering nose wheel
NOTE: Use differential braking when
the NWS system is inoperative.
4.
Limitations
a.
High gain is for aircraft parking only
(and carrier deck operations)
b.
NWS deactivated upon extension of
launch bar unless NWS button pressed
and held. High and low gain is not
available with launch bar extended
c.
Maximum speed for operating the
aircraft on the runway with NWS
activated is 176 KIAS
5.
Summary:
The full-time, dual-gain NWS system is
designed to provide adequate directional
control in low gain for normal and high-
crosswind landings and takeoffs while high
gain provides increased nose wheel
steering range for aircraft parking. The
rudder pedals are used to control the nose
wheels when the NWS system is engaged.
If NWS is deselected or fails, differential
braking can be used to steer the aircraft.
The NWS system is linked to the WOW
circuits and will not activate until weight-on-
wheels condition exists. Nose wheel and
one MLG WOW proximity switch is required
to activate NWS; once activated, remains
activated as long as any one gear senses
WOW. Lowering the launch bar deactivates
the NWS, but NWS +/- 20 degrees may be
selected by pressing and holding the NWS
button.
Page 13-38
(8-03) Original
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