The rotary switch is labeled FUEL SHUT-
temperature of the outside air in °F. This meter
DOWN VALVE TEST. It is used to test each fuel
is located above the GG section (E) of the LOP
valve. The switch is spring-loaded to the OFF
To the right of the meter is a push-button
position. To test an individual valve, you must
turn the switch to the desired valve and hold it.
indicator labeled AUTOMATIC SHUTDOWN
(PRESS TO RESET). It illuminates to indicate
You must keep the switch held to that position
until the NGG is at zero. Then depress the FUEL
an emergency shutdown has occurred on the
related GTE. The automatic shutdowns are as
ON/FUEL OFF push button to close the other
valve and keep both valves closed.
PT inlet temp (T5.4) high--above 1530°F
Engine LO pressure low--below 6 psig
The FUEL section (D) contains a meter, an
GG vibration high--above 7 mils
indicator, and a push button associated with the
GTE fuel supply. The edgewise meter, labeled
PT vibration high--above 10 mils
SERVICE SUPPLY PRESSURE, displays the
fuel supply pressure from the ship's fuel system.
Flameout: T5.4 less than 400°F with fuel
The split-legend push button, labeled VALVE
OPEN/VALVE CLOSE, controls and illuminates
manifold pressure above 50 psig
to display the status of the module fuel cutoff
When one of these conditions is met, the
valve located under the enclosure. The split-legend
automatic shutdown circuitry closes the two main
indicator, labeled VALVE OPEN/VALVE
fuel valves. You depress the AUTOMATIC
CLOSED, illuminates to show the actual fuel
supply valve status.
SHUTDOWN button to reset the automatic
a complete stop.
This section (E) monitors parameters associated
with the GG. It contains three edgewise meters,
The START/STOP section (C) contains the
two indicators, and an illuminated push button.
controls to start and stop the GTE. It has one
The first edgewise meter is labeled INLET
indicator, three push-button indicators, and
TEMP. This meter displays the T5.4 of the PT.
a rotary switch. The split-legend indicator
You have to multiply the number displayed by
labeled VALVE OPEN/VALVE CLOSED is the
1000 to determine the actual temperature.
STARTER REGULATOR STATUS indicator. It
illuminates to display the open or closed status
The indicator is labeled OVERSPEED. It will
of the starter regulator valve. The first push-
illuminate and activate an alarm when the speed
button indicator, labeled STARTER ON, is a
of the GG exceeds 9700 ± 100 rpm. The split-
momentary switch. When it is depressed, it opens
legend indicator, labeled OPEN/CLOSED,
the starter regulator valve and closes it when
displays the status of the GTE's 16th-stage
released. The second push-button indicator is
BLEED AIR VALVE. The bleed air push-button
labeled IGNITION ON. It is also a momentary-
indicator, labeled OPEN/CLOSE, controls the
type switch. When it is depressed, it turns the GTE
operation of the GTE bleed air valve. It will
ignitors on; when it is released, the ignitors are
illuminate either open or close, depending on the
turned off. The last indicator is a split-legend push
command that is selected.
button labeled FUEL ON/FUEL OFF. It
The second edgewise meter is labeled SPEED.
illuminates to show the operator command to
This meter monitors NG G. The readings from this
energize or de-energize the fuel shutdown valves.
meter are multiplied by 1000 to determine GG
By depressing it once, you can open the fuel
speed. The third edgewise meter is labeled START
valves. Re-depressing it closes the valves. You
AIR PRESSURE. It displays the pressure of the
must always keep the push button in the FUEL
air available to start the GTE.
OFF position when control is at the PCC.