Hydraulic Subsystems
T-45C TS, ADV & IUT ENG-11
D.
Weight-on-wheels (WOW) and gear-down/up-and
-locked control
1.
Location of proximity switches
Sg 3, fr 4
Fig 25: Weight-on-
a.
Main gear
Wheels (WOW)
b.
Nose gear
Shock
Strut
WOW Switch
Proximity
Sensor
Target Position; Strut
Fully Compressed
Link Shown with Gear
MAIN LANDING GEAR
Fully Extended
Prox Sw
Upper
Torque Arm
Shock
WOW Switch
Strut
NOSE LANDING GEAR
Figure 25: WEIGHT-ON-WHEELS (WOW)
2.
Weight-off-wheels condition
a.
Monitored by airborne data recorder
b.
Closes environmental control system (ECS)
ram air valve
c.
Disables NWS system
(9-98) Change 4
Page 11-52
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