T-45A UJPT, E2-C2, ADV, & IUT Eng-24
Engine Start Procedures
the start control unit when N2 accelerates
through 45% rpm or after 45 seconds when
ignition is terminated and GTS returns to
IDLE. ECA monitors N1 rpm. When N1
shaft speed reaches 100 rpm in correct
direction of rotation, ECA signal is sent to
the CWS start control unit to illuminate
ROTATION advisory light and to fire
engine igniters.
4.
Throttle
Sg 1, fr 5
a.
Location: left console, both cockpits
b.
Description: interconnected and
mechanically linked variable position
fuel control lever with stops for OFF,
IDLE, APPROACH IDLE, and full
forward (MRT)
THROTTLE
(1) OFF: interrupts or prevents fuel
flow to engine
(2) IDLE: opens fuel shutoff valve to
direct fuel to fuel spray nozzles
(3) APPROACH IDLE: with landing
gear down and aircraft weight-off-
wheels, maintains minimum rpm at
approximately 72%
NOTE: With weight-on-wheels,
ANTI-SKID switch set to ON, the
approach idle stop retracts
immediately. With the ANTI-SKID
switch set to OFF, the approach
idle stop retracts after two
seconds with weight-on- wheels.
If GTS start button is pressed,
approach idle stop retracts
immediately.
Page 24-6
(8-03) Original
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