T-45A UJPT, E2-C2, ADV, & IUT Eng-02
Engine
LECTURE NOTES (cont)
NOTE: Engine ignition is activated
when GTS button is pressed and held.
(Will remain energized for 30 seconds
after its release if airborne.)
b. GTS advisory light on within 20
seconds
4.
ENGINE switch - START (momentary)
Overlay 4
a. GTS accelerates to full power, start
ENGINE Switch
valve opens, and dump valve closes
b.
ROTATION advisory light on when
engine N 1 rpm reaches 100 rpm in the
correct direction, engine ignition
activates
5.
Throttle - IDLE WHEN RPM REACHES
15% N 2 MINIMUM
Overlay 5
Throttle - Idle
a.
Sub-idle fuel control unit (SIFCU)
schedules fuel to combustion
chamber and lightoff must occur
within 15 seconds
b.
Engine must accelerate to 45% RPM
Overlay 6
within 45 seconds of releasing engine
switch from "start" or start control unit
45% N 2 rpm
will abort engine start
(1) At 45% N2:
(a) GTS shuts down
(b) Generator comes on line
(c) ROTATION and GTS
advisory lights go out
(d) Ignition is deenergized
Page 2-28
(8-03) Original
Previous Page
