Introduction to NATOPS & T-45A Configuration
T-45A UJPT, E2-C2, ADV, & IUT Eng-01
D.
Hydraulic (HYD) system 1.4.8.3.1.1
Sg 3, fr 5
WARNING
CAUTION
HYDFAIL
RATEXTEND LIGHT
LIGHT
CAUTION
CAUTION
HYD1PRESS LIGHT
HYD2PRESS
LIGHT
MICRO
SWITCH
RAT
RESERVOIR
RESERVOIR
FCACCUM
FC ACCUM
EDP
EDP
LAIL
PRIORITY
LECTURE NOTES
VALVE
R AIL
HAND
STAB
PUMP
Highlight the fact that the hydraulic system provides
SPD BRK
SLATS
FLAPS
L GEAR
NWS
L BAR
HOOK
the only means of controlling the ailerons and
HYD1PRESSURE
MECHANICAL
HYD2PRESSURE
WHL BRKS
CHECKVALVE
PRESSURIZED WITH
FLAP EMERGENCY
RAT EXTENDED
SELECTOR / PRIORITY
AND GATE
VALVE
ELECTRICAL
stabilator. With a total hydraulic failure in flight,
T-45AHYDRAULICSYSTEMBLOCKDIAGRAM
ejection will be the only option.
T-45A HYDRAULIC SYSTEM BLOCK
1.
Description: two independent systems
(HYD 1 and HYD 2) consisting of engine-
driven pumps (EDPs) reservoirs, and
accumulators. An associated part of HYD
2 is an emergency HYD system, with ram
air turbine (RAT) supplying emergency
hydraulic power backup for HYD 2 EDP
2.
Function: both independent systems
provide constant 3,000 psi
a.
HYD 1 powers flight controls
(stabilator and ailerons) and general
services (speed brakes, flaps, slats,
landing gear, wheel brakes, anti-skid,
launch bar, nose wheel steering, and
arresting hook)
b.
HYD 2 powers flight controls and
emergency assembly package
c.
RAT powers flight controls through
emergency HYD system following a
failure of the HYD 2 EDP
(8-03) Original
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