T-45C TS, ADV & IUT ENG-27/ENG-28
Engineering Review
4.
Limitation: maximum airspeed for lowering gear
and flying with gear extended is 200 KIAS
B.
Nose wheel steering (NWS); dual-gain, full-time
Fig 11: Nose Wheel
(low-gain)
Steering (NWS) System
Major Components
1.
Major components
a.
Steering motor: hydraulic motor mechanically
moves nose wheel
b.
Gearbox (gear train): mechanically transmits
steering motor movement to nose wheel
c.
Electronic control box
d.
Steering collar: support bearing between fixed
strut and moveable nose wheel
2.
Controls and indicators
a.
NWS button
(1) Selects high gain (+ 65 degrees) when
pressed and held
(2) Reselects low gain (+ 12 degrees) when
pressed momentarily after emergency off
with paddle switch or NWS shutdown due
to fault protection
(3) Selects + 20 degrees NWS when pressed
and held with launch bar down
b.
Paddle switch: selects NWS emergency
off (ground) and deactivates control
augmentation (ground/airborne)
c.
NWS caution light indicates system failure or
nose wheel steering disconnected with the
paddle switch
d.
NWS HI advisory light indicates high gain
selected
(9-98) Original
Page 27-69
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