T-45A UJPT, E2-C2, ADV, & IUT Eng-09
Hydraulic System
V.
Aircraft interfaces 1.4.8.2
Sg 5, fr 1
Lesson Organization
A.
Inputs
1.
Electrical system: all WCP lights, HYD 2
RESET button, and system solenoid valves
supplied by 28 VDC essential services bus
2.
Engine accessory gearbox: provides
mechanical power to drive two hydraulic
pumps
B.
Output
Sg 5, fr 2
(2 overlays)
1.
HYD 1
HYD 1
HYD 2
a.
Flight controls supplied continuously
RAT
(1) Ailerons
GENERAL
FLIGHT
SERVICES
CONTROLS
(2) Stabilator
SIMPLIFIED HYDRAULIC SYSTEM
NOTE: Rudder is mechanical and
BLOCK DIAGRAM
does not receive hydraulic power.
b.
General services when HYD 1
pressure is above 1,600 psi
(1) Landing gear
(2) Nose wheel steering
(3) Launch bar
(4) Speed brakes
(5) Arresting hook
(6) Flaps and slats
(7) Wheel brakes and anti-skid
Page 9-33
(8-03) Original
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