the commanded standard order position and
shaft rpm is > 60, the console electronics
depressing the standard order ALERT push-
will bring the PLA to idle.
button indicator. This transmits the order to
the PACC and PLCC for that shaft (port or
The status indicators are as follows:
starboard). The commanded standard order
acknowledge push-button (RPM ACK/PITCH
FULL AHEAD PITCH--It illuminates
ACK) indicator flashes at both the PLCC and
green to indicate + 100 percent propeller
PACC, but the EOT bell annunciator only sounds
pitch.
at the station which has control of that engine
room (PACC or PLCC). During a standard EOT
AHEAD PITCH--It illuminates green to
order change, the new order is displayed by the
indicate +16 to +100 percent propeller
flashing indicator and the old order is displayed
pitch.
by the steady illuminated indicator at all three
consoles (SCC, PACC, PLCC). If the PLCC has
ZERO PITCH--It illuminates green to
control, the operator can acknowledge the order
indicate 16 to +16 percent propeller
by depressing the flashing standard order push
pitch.
button. This silences the bell, and the flashing
indicator illuminates steady.
BACK PITCH--It illuminates green to
indicate 16 to 49 percent propeller
The digitized EOT section contains three
pitch.
alarm indicators, five status indicators, the
ALARM ACKNOWLEDGE push buttons, a
FULL BACK PITCH--It illuminates
TORQUE SENSOR CUTOUT push button, and
green to indicate 49 percent propeller
a CONTROL TRANSFER push-button/status
pitch.
indicator.
The TORQUE SENSOR CUTOUT is a push-
The alarm indicators are as follows:
button control indicator that electronically
overrides shaft torque limiting. Shaft torque
TORQUE MISMATCH--It illuminates
is sensed by a torsion meter installed on
red to indicate a mismatch of torque
between the PT and the propulsion shaft.
becomes too great, an electronic signal is
These values are electronically measured
generated to limit PLA of the GTM. This
by the FSEE and the shaft torque sensor.
action limits the power of the GTM until
More than a 25 per cent difference of the
shaft torque is within normal power limits.
two torque values for > 60 seconds will
When the torque sensor cutout is activated,
activate this alarm.
propeller shaft torque is NOT electronically
limited.
OVERTORQUE CONTROL ON--It illu-
minates yellow to indicate that overtorque
At the bottom center of the panel, under the
control has been activated either in the
heading CONTROL TRANSFER, is a push-
FSEE (PT torque limiting) or by the
button control indicator labeled LOCAL/
console electronics (shaft torque limiting).
REMOTE. It is the control transfer push-button
This indicator illuminates when limiting is
for the following functions:
occurring. If after 20 seconds the over-
torque condition still exists, the alarm will
GTM controls, start/stop functions
sound.
Clutch/brake controls
WRONG PITCH DIRECTION--It illu-
minates red to indicate a difference
CRP pump control
between the commanded pitch, the
position of the pitch control lever, and the
EOT control
actual pitch of the propeller. If the wrong
direction condition exists for longer than
The control transfer button is used with the GTM
ENABLE/INHIBIT push buttons discussed in
20 seconds, an audible alarm is sounded.
If a wrong direction condition exists and
GTM controls and indicators.
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