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Synchronization is annunciated with a yellow SYNC on the primary flight display. The
message will remain for 3 seconds, or until the sync switch is released, whichever is
longer.
FD Synchronization <1015>
Figure 03---20---5
ControlWheel
Rear View
Flight Director
Synchronization
Switch (black)
Used when autopilot is
not coupled, to
synchronize vertical
and lateral references
to those currently
flown.
Primary Flight Display
Pilot’s and Copilot’s Instrument Panels
SYNC (yellow)
Displayed when flight
director synchronization
is selected.
Vol. 1 03--20--8
AUTOMATIC FLIGHT CONTROL SYSTEM
Flight Control and Guidance REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
C. Flight Mode Annunciator
Flight mode annunciation is located above the blue (sky) portion of the attitude director
Indicator. The flight mode annunciator presents flight mode information in two fields
separated by a vertical cyan line. To the left of the line is the active or captured field
(green) and to the right of the line is the armed field (white). The bottom line in each of
the two fields contains vertical mode information and the upper lines contain lateral
information.
Flight Mode Annunciator <1015>
Figure 03---20---6
Primary Flight Display
Pilot’s and Copilot’s Instrument Panels
IAS 400
HDG
ALTS GS
LOC1
1/2 BNK
1/2 BANK
ANNUNCIATION
VERTICAL ARMED
FIELD
LATERALARMED
FIELD
LATERAL CAPTURE
OR ACTIVE FIELD
VERTICAL CAPTURE
OR ACTIVE FIELD
10
10
Vol. 1 03--20--9
AUTOMATIC FLIGHT CONTROL SYSTEM
Flight Control and Guidance REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
D. Lateral Modes of Operation
(1) Lateral Take-Off Mode
Lateral take-off mode generates a wings level command while on the ground.
After take-off, it generates a heading hold command, with a 5-degree bank limit,
using the heading which existed at take-off. Selecting a lateral take-off mode
turns on both flight directors, disengages the autopilot and clears all other lateral
modes.
Lateral take-off mode is selected by pushing one of the thrust lever-mounted
TOGA switches while on the ground. Lateral take-off mode is cleared by the
selection of flight director synchronization or another lateral mode.
Lateral take-off mode is annunciated with a green TO message in the lateral
capture field on the primary flight display.
(2) Navigation Mode
Navigation mode generates commands to capture and track a selected
navigation source displayed on the primary flight display. Navigation mode is
armed when selected, but cannot capture if the flight control computer is not
receiving valid navigation data.
The capture point is a function of closure rate, with the capture point moving
away from the radial/beam for high closure rates.
Navigation capture clears the heading selected. A localizer capture clears half
bank and turbulence modes.
Dead reckoning is provided during VOR station passage. When DME data is
available, dead reckoning region is approximately where the horizontal distance
to the station is less than the altitude to the station. Without DME data, dead
reckoning is based on a high rate of VOR deviation.
Navigation mode is selected by pushing the NAV switch on the flight control
panel. Navigation mode is cleared by pushing the NAV switch again, by selecting
another lateral mode or by changing the source of the on-side navigation signal.
Navigation mode arming is annunciated with two messages on the primary flight
display, a green HDG message in the lateral capture field, and a white navigation
source identifier (VOR1/2, LOC1/2 or FMS1/2) in the lateral arm field.
Navigation mode capture/tracking is annunciated with a green message in the
lateral capture field on the primary flight display which identifies the navigation
source (VOR1/2, LOC1/2 or FMS1/2). Dead reckoning operation is annunciated
with a white DR message on the primary flight display.
Vol. 1 03--20--10
AUTOMATIC FLIGHT CONTROL SYSTEM
Flight Control and Guidance REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
(3) Heading Select Mode
Heading select mode generates commands to capture and maintain the selected
digital heading readout and heading bug on the primary flight display. The
selected heading can be changed by rotating the HDG knob (up to 360 degrees)
on the flight control panel. Pushing the HDG knob will set the selected heading
to the current heading.
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