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PSP 604−6
FLIGHT DIRECTORS (CONT'D)
Half Bank Mode
Figure 04−10−18
NAV Mode
Pushing the NAV button on the FCP alternately selects and clears the navigation mode, and
causes the flight director to generate lateral commands to capture and track the active
navigation source (VOR, LOC, FMS).
The displayed navigation source will determine which navigation submode will be in operation.
NAV Source Selection
The navigation source is selected using the NAV SOURCE knob on the DCP.
LOC or VOR navigation source is determined by the ground station frequency set on the RTU.
All NAV mode annunciations appear in the lateral field of the FMA: armed modes in white, and
active/captured modes in green. Captures that are inhibited due to invalid data are
annunciated on the PFDs as a red horizontal line through the mode annunciation.
VOR Navigation Mode
In the VOR navigation mode, the flight director generates lateral steering commands to capture
and track the selected VOR radial (inbound or outbound), using the course displayed on the
active navigation source.
When the NAV button is pressed and the active navigation source is VOR1 or VOR2, the VOR
navigation mode is armed. The armed lateral mode field on both PFDs shows a white VOR1
(or VOR2) annunciation. When the VOR mode is captured, the armed annunciations are
removed and a green VOR1 (or VOR2) annunciation is displayed in the active lateral mode
field on the PFDs.
The CRS1 and CRS2 knobs, located on the FCP, provide the means to select the desired
course on the left and right PFD HSI respectively. Pressing the PUSH DIRECT knob within the
CRS knob synchronizes the corresponding course display and provides a “direct-to” VOR
course.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−20
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
FLIGHT DIRECTORS (CONT'D)
VOR navigation mode is designed to permit tracking over station and allow for course changes
while tracking. When over a VOR station, the system can accept and follow a course change of
up to 90°. Dead reckoning operation (based on memorized heading) is provided during VOR
station passage. A white DR annunciation appears next to the active VOR mode annunciation
during dead reckoning operation.
When captured, VOR navigation mode is cleared automatically by selection of another lateral
mode, by changing the active NAV source, or by loss of the VOR signal. VOR navigation mode
can also be cleared by pressing the NAV button again.
Display Control Panel
Figure 04−10−19
VOR Navigation Mode
Figure 04−10−20
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−21
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
FLIGHT DIRECTORS (CONT'D)
Localizer Navigation Mode
In localizer navigation mode, the flight director provides lateral steering commands to capture
and track the front course localizer from the active navigation source.
Whenever LOC navigation mode arms, a white LOC1 (or LOC2) annunciation is displayed in
the armed lateral mode field on both PFDs. When the LOC mode is captured, the armed
annunciation is removed and a green LOC1 (or LOC2) is displayed in the active lateral mode
field on both PFDs.
When captured, LOC navigation mode is cleared automatically by:
• Selection of another lateral mode,
• Changing the active NAV source, or
• Loss of localizer signal.
LOC mode can also be cleared by pressing the NAV button again.
LOC Navigation Mode
Figure 04−10−21
FMS Navigation Mode
In FMS navigation mode, the flight director uses lateral steering commands from the active
flight management computer (FMC) to capture and track the desired track to the “TO”
waypoint.
AUTOMATIC FLIGHT CONTROL SYSTEM
Description
Vol. 2 04−10−22
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
FLIGHT DIRECTORS (CONT'D)
When the NAV button is pressed and the active navigation source is FMS1 or FMS2, the FMS
navigation mode arms and a white LNV1 (or LNV2) annunciation is displayed in the armed
lateral mode field on both PFDs. When the FMC capture criteria are met, the armed
annunciation is removed and a green LNV1 (or LNV2) annunciation is displayed in the active
lateral mode field on both PFDs.
When captured, FMS navigation mode is cleared automatically by selection of another lateral
mode, by changing the active NAV source, or by loss of FMS steering validity. FMS navigation
mode can also be cleared by pressing the NAV button again.
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庞巴迪挑战者604操作手册 Operating Manual 3(42)
