T-45A UJPT, E2-C2, ADV, & IUT Eng-02
Engine
(4) When airborne and starting engine
in manual fuel (FUEL CONTRL
switch set to MANUAL): bleed air
valve is opened electrically by
pressing GTS start button--valve
held open for 60 seconds
CAUTION: Starting the engine
on the ground with manual fuel
control is not permitted.
b.
Igniters: two high-energy, 12-joule
igniter plugs are fitted to engine
combustion chamber
(1) Powered by 28 VDC essential
services bus, produce
approximately 80 sparks per
minute
(2) Controlled by IGNITION switch
and starter control unit during
normal start
(3) Controlled by GTS start button
during air start--igniters energized
while GTS start button is pressed
(+30 seconds when airborne)
4.
Monitoring: includes monitoring of all
normal engine parameters plus three
parameters specific to engine start--GTS
fire, GTS rpm, and direction of engine
rotation
Sg 2, fr 10
E.
Bleed air system
Overboard
ECS
OBOGS
Steam Ingestion Bleed Valve
1.
Internal airflow (bypass air): continuous
flow of compressor air used internally in
engine for
P1 Anti-Icing
Fuel Pressurization
and Exhaust
a.
Pressurizing oil seals to prevent oil
Air
EXTERNAL BLEED AIR
EXTERNAL BLEED AIR
bleeding into engine airflow and hot
gases from entering oil system
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(8-03) Original
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