T-45C TS, ADV & IUT ENG-11
Hydraulic Subsystems
III. Aircraft interfaces 1.4.9.2, 1.4.12.2, 1.4.10.2, 1.4.11.2,
Sg 3, fr 2
1.4.13.2
Lesson Organization
HYDRAULIC SUBSYSTEMS
* Landing gear system
?
* Landing gear-related
With what aircraft systems do the hydraulic
components
subsystems interface?
* Aircraft interfaces
ANSWER: HYD 1, electrical, centralized warning system, and
weight-on-wheels
A.
Hydraulic system
1.
All hydraulic subsystem items powered by HYD 1
2.
If HYD 1 fails, services retained due to backup/
alternate means include
a.
Landing gear: gravity free-fall extension and
lock
b.
Forward NLG doors partially closed electrically
c.
Arresting hook: gravity/pneumatic extension
d.
Wheel brakes: wheel brake/emergency flap
accumulator provides enough braking for one
normal landing
e.
Flaps: full extension
3.
If HYD 1 fails, services lost include
a.
NWS: use differential braking instead
b.
Anti-skid: must be selected OFF to conserve
wheel brake/emergency flap accumulator
pressure for wheel brakes
(9-98) Change 4
Page 11-49
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