Hydraulic Subsystems
T-45A UJPT, E2-C2, ADV, & IUT Eng-13
2.
Weight-off-wheels condition
a.
Monitored by airborne data recorder
b.
Closes environmental control system
(ECS) ram air valve
c.
Disables NWS system
d.
Selects airborne mode of anti-skid
system to provide touchdown
protection upon landing
e.
Enables AOA probe (heater)
f.
Selects in-flight avionics cooling mode
g.
Disables launch bar extension
3.
Weight-on-wheels condition
a.
Monitored by airborne data recorder
b.
Opens ECS ram air valve
c.
Selects ground avionics cooling mode
d.
Disables emergency jettison of
external stores
e.
Disables armament bus
f.
Enables NWS
g.
Removes power to AOA probe (heater)
h.
Prevents retraction of landing gear
i.
Enables launch bar extension
j.
Enables HUD system to input mission
data
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(8-03) Original
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