Engine and Related Systems
T-45C TS, ADV & IUT ENG-04
CAUTION: Starting the engine on the ground
with manual fuel control is not permitted.
b.
Igniters: two high-energy 12 joule igniter plugs
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)
3.
Monitoring: includes monitoring of all normal engine
parameters plus three parameters specific to engine
start—GTS fire, GTS rpm, and direction of engine
rotation
E.
Bleed air system
Sg 2, fr 39
Fig 4: External Bleed
1.
Internal air flow: continuous flow of compressor air,
Air
used internally in engine for
Overboard
ECS
OBOGS
Steam Ingestion
Bleed Valve
LEGEND
AIR
P1 Anti-Icing
Fuel Pressurization
COMBINATION
AND EXHAUST
Figure 4: EXTERNAL BLEED AIR
Original (9-98)
Page 4-18
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