indicators to monitor only two GTEs and one
SETTING section) for individual control
MRG.
of the GTEs
Other than the quantity of controls and
indicators, the only major differences in the SCU
and the PACC propulsion monitor panel is it has
only one plasma display and the addition of a
SUMMARY ALARMS section on the SCU. This
section has nine LEDs, each of which monitors
multiple systems. The first LED, labeled BLEED
AIR, illuminates amber to indicate any one of the
alarms related to the bleed air system has been
activated. The second LED, labeled PROP
HYDR, illuminates amber to indicate any one
of the seven alarms related to the propeller
hydraulics has been activated. The third LED,
labeled REDUCTION GEAR AND SHAFTING,
illuminates amber to indicate any one of 36 alarms
related to the MRG and shafting has been
activated. The fourth and fifth LEDs are mounted
vertically and are for ENGINE ROOM 1(2). The
One pitch control lever (located to the
top LED, labeled LUBO, illuminates amber to
right of the PROGRAMMED CONTROL
indicate an alarm related to the LO system in the
lever) for manual control of propeller pitch
engine room has been activated. The bottom
LED, labeled FUEL OIL, illuminates amber to
A MODE select switch added to the
indicate any one of nine alarms related to the fuel
CONTROL LOCATION section
system has been activated.
The throttle control levers have been described
The last four LEDs are for the GAS TURBINE
on the PACC and will not be covered again. The
(two for each GTE in the engine room). They are
pitch control lever is used when the SCU is in the
grouped vertically in pairs for GTE 1B(2B) and
manual mode to vary pitch from 0 to full ahead
GTE 1A(2A). We will describe only the two LEDs
(+25 feet) or 0 to full astern ( 17 feet). It also
for GTE 1B(2B). The top LED, labeled VITAL,
has a vernier thumbwheel, labeled TRIM, which
illuminates amber to indicate any one of 23 vital
is used to make fine adjustments to the pitch
alarms related to GTE 1B(2B) has been activated.
setting.
T h e bottom LED, labeled NON VITAL,
illuminates amber to indicate any one of 19 non-vital
alarms related to GTE 1B(2B) has been activated.
THRUST AUXILIARY PANEL (A2)
This panel (fig. 7-10) has the identical controls
and indicators found on the PACC thrust/aux-
iliary panel.
The major differences between the SCU panel
and the PACC panel are as follows:
Only one PROGRAMMED CONTROL
lever for control of the GTEs and shaft for
the applicable engine room
The addition of two manual throttle
control levers (located between the PRO-
P U L S I O N AUX and the THRUST
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