Hydraulic Subsystems
T-45A UJPT, E2-C2, ADV, & IUT Eng-13
NOTE: If the launch bar switch is left
in the EXTEND position on catapult,
the launch bar switch will automati-
cally return to the retract position
with weight-off-wheels.
WARNING: Selecting launch bar
RETRACT before receiving the
retract signal from the aircraft
director may raise the launch
bar before it is properly seated
in the shuttle spreader assembly
resulting in a mispositioned
launch bar.
b.
L BAR lights
(1) Location: right of advisory panel
and below EGT gauge, both cock-
pits
(2) Purpose
(a) Green L BAR light illuminates
when launch bar is extended,
the LAUNCH BAR switch is
set to EXTEND, and the
aircraft is on the deck
(b) Green L BAR light off when L
BAR switch is set to
RETRACT and launch bar
held extended in shuttle
mechanism
(c) Red L BAR light illuminates
(MSTR ALERT flashes and
warning tone sounds) after
10-second delay when launch
bar fails to retract after launch
and the landing gear is down
and locked (weight-off-
wheels)
Page 13-40
(8-03) Original
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