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three cockpit lighting modes; allowing the pilot to optimize interior lighting for current ambient light
conditions.
NVG Reduces the brightness range for the warning, caution, and advisory lights, the UFCD,
MPCD, and EFD; disables the integral console lights and the white floodlights; and
enables six NVG compatible floodlights to illuminate the consoles.
NITE Reduces the brightness range for the warning, caution, and advisory lights, the UFCD,
MPCD, and EFD.
DAY Provides the maximum brightness range for all interior lighting.
The UFCD, MPCD, and EFD reset to DAY mode brightness after aircraft shutdown. Following
electrical power interruption, these displays reset to DAY mode brightness with the mode switch in
DAY or NITE positions, and to NITE mode brightness with the mode switch in NVG position.
2.5.2.2 CONSOLES Lighting Knob. The CONSOLES lighting knob, located on the INTR LT panel,
is used to control the brightness of the integral lighting for the left and right consoles, the hydraulic
pressure gauge, and both circuit breaker panels. Clockwise rotation of the knob increases console
lighting intensity from the OFF to BRT positions. The CONSOLES knob and integral console lighting
are disabled in the NVG mode.
2.5.2.3 INST PNL Lighting Knob. The INST PNL lighting knob, located on the INTR LT panel, is
used to control the brightness of the integral lighting for the main instrument panel and the standby
magnetic compass. Clockwise rotation of the knob increases main instrument panel lighting intensity
from the OFF to BRT positions. The strobe function of the SHOOT light is disabled when the
instrument lights are on.
2.5.2.4 FLOOD Lights Knob. The FLOOD knob, located on the INTR LT panel, is used to control the
brightness of the white cockpit floodlights. Eight floodlights are provided for secondary lighting; three
above each console and one on either side of the main instrument panel. Clockwise rotation of the knob
A1-F18EA-NFM-000
I-2-37 ORIGINAL
increases floodlight intensity from the OFF to BRT positions. The FLOOD knob and all white
floodlights are disabled in the NVG mode. There is no brightness control for the six NVG floodlights.
2.5.2.5 CHART Light Knob. The CHART light knob, located on the INTR LT panel, is used to
control the brightness of the NVG compatible chart light. The chart light is located on the canopy bow
at the 10:30 position and rotates in two axes. Clockwise rotation of the knob increases chart light
intensity from the OFF to BRT positions.
2.5.2.6 Utility Floodlight. The utility floodlight, normally stowed above the right console, provides a
portable source of secondary lighting. An attached alligator clip allows the light to be fastened at
various locations in the cockpit. The light contains a knob which provides variable lighting intensity
from off to bright and a button which, when pressed, illuminates the light at full intensity. The light
also contains a rotary selector for white or NVG compatible green lighting.
2.5.2.7 Emergency Instrument Lights. The emergency instrument lights, located on the left and
right sides of the main instrument panel, illuminate the EFD and standby flight instruments in the
absence of ac electrical power. The lights come on anytime the PMGs or the battery are powering the
essential bus. There is no separate cockpit control for the emergency instrument lights.
2.5.2.8 Engine Instrument Light. The engine instrument light, located on the left side of the main
instrument panel, provides lighting for the EFD during battery start of the first engine. The light
comes on when the APU switch is placed to ON.
2.5.2.9 WARN/CAUT Lights Knob. The WARN/CAUT knob, located on the INTR LT panel, is used
to control the brightness of the warning, caution, and advisory lights in the reduced brightness range.
Clockwise rotation of the knob increases warning, caution, and advisory light intensity from the OFF
to BRT positions. The brightness is maximum in the DAY mode and in the reduced brightness range
in the NITE and NVG modes.
Following a power interruption in either the DAY or NITE mode, the warning, caution, and advisory
lights default to the maximum brightness range. Following a power interruption in the NVG mode, the
warning, caution, and advisory lights remain in the reduced brightness range.
2.5.2.10 LT TEST Switch. The LT TEST switch, located on the INTR LT panel, is spring loaded to
the OFF position. The switch is used to test important cockpit lighting to verify bulb integrity prior to
flight. The switch requires ac electrical power to operate.
TEST Powers all operating warning, caution, and advisory lights, the AOA indexer lights, and
the integral background lighting on the EFD (BINGO, MODE, and BRT). Annunciates
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NATOPS Flight Manual 飞行手册 1(47)
