T-45C TS, ADV & IUT ENG-11
Hydraulic Subsystems
E.
Arresting hook
Sg 2, fr 15
Fig 20: Arresting
1.
Major components 1.4.13.3.1
Hook System Major
Components
a.
Hydraulic actuator/damper
(1) Hydraulically retracts arresting hook (HYD 1
pressure, 3000 psi)
(2) Pneumatic snubber preload nitrogen
pressure (with gravity assist) extends
arresting hook and provides positive down-
force to prevent hook bounce and possible
hook slap
(3) Provides positive hydraulic retract actuator
pressure to relieve mechanical load on
uplatch mechanism
b.
Oleo-pneumatic centering unit
(1) Buffers against lateral shock loads
(2) Spring unit keeps tail hook centered
c.
Arresting hook assembly: engages deck
arresting cable or field arresting gear to stop
aircraft
d.
Uplatch mechanism: mechanically retains
Sg 2, fr 16
arresting hook in up position
Fig 21: Arresting
Hook Inspection
e.
Arresting hook safety pin
(9-98) Change 4
Page 11-43
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