Engine and Related Systems
T-45C TS, ADV & IUT ENG-04
(a) One encircles engine bay
(b) One encircles GTS bay
(2) Detects fire or overheat condition in GTS
and engine bays
(3) Fire detected if engine or GTS bay
temperature reaches 300 degrees C
(572 degrees F)
(4) Warning light will go out if the temperature
falls below 300 degrees C for up to 45 sec
e.
Tailpipe hot detection system
(1) Consists of four thermo detector type
sensors
(2) TP HOT Caution Light on if tailpipe bay
temperature exceeds 150 degrees C
(302 degrees F)
B.
Engine fuel system
1.
Normal fuel control
Sg 2, fr 5
(10 Overlays)
Engine Fuel System
a.
Functional description: fuel transferred to
Block Diagram
engine LP fuel pump from aircraft fuel system.
Automatic (NORMAL) controls override
mechanical controls, preventing engine from
exceeding operating limits (when FUEL
CONTROL switch set to NORMAL)
(1) LP fuel pump: mounted on and driven by
external gearbox, pump maintains fuel
pressure to HP fuel pump, preventing HP
Overlay 1
fuel pump cavitation
LP Fuel Pump
(2) Fuel-cooled oil cooler (FCOC): mounted on
engine accessory package, heat exchanger
unit transfers oil heat to fuel, reducing or
Overlay 2
eliminating fuel system icing
FCOC
Original (9-98)
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