(3) Flight Director and Autopilot Lateral
(Bank) Steering. Using the Flight Director or autopilot,
the FMS can steer the aircraft directly through all of
the possible flight plan maneuvers including holding
patterns, MFPs, SIDs, STARs, and FMS approaches.
This interface also enables the FMS to limit the
commanded bank angle to the value specified on the
Navigation Configuration page.
The FMS provides a heading submode (FMS
heading) that allows the crew to temporarily fly to
selected headings while still using FMS waypoint
navigation. For those aircraft equipped with Electronic
Flight Instrument Systems (EFIS), select FMS heading
mode by pressing the HDG knob and adjusting the
knob to the desired heading. The FMS will provide
commanded bank to the selected heading indefinitely
or until the heading is adjusted in such a way as to re-
intercept the previous course.
(a) Additional Displays on Electronic
Flight Instrument Systems. For those aircraft which
are equipped with an electronic flight display system
(EFIS or FDS), additional displays may be provided as
shown in Figure 3B -57. The following additional data
is available for display from the FMS on the primary
1. Eight future flight play waypoints
advance notice of impending leg
changes and relative distances to
electronic HSI is in MAP mode.
waypoint (i.e., NAV aid, intercept,
standard waypoint, airport, etc.)
and label identifier.
3. Ground speed.
4. True Airspeed.
5. Wind direction and speed.
6. Time to go.
7. Bearing to Waypoint.
8. Elapsed Time.
(4) FMS Heading Mode Overview. The
vectoring to intercept a final approach course of a
published GPS approach, without the pilot needing to
deselect and reselect the flight control system NAV
(a) Activation of FMS Heading Mode.
When commencing a published GPS approach, if ATC
gives instructions to follow radar vectors to intercept
the final approach course, select DIRECT TO the FAF.
The message FINAL CRS XXX will appear in the
CDU scratchpad. Select line key L1 on the CDU to
insert that final approach course extension as the
currently displayed FMS course. Press the HDG knob
on the FDS control panel to activate the FMS Heading
Mode, and select the desired heading to intercept the
final approach course. The FMS roll command will
guide the aircraft to acquire and hold the displayed
heading and any subsequent desired heading entered
by the pilot on the FDS control panel. The FMS
Heading Mode will continue to guide to the FDS
selected heading as long as the heading is steering
away from the flight plan course. When the selected
heading is steering towards the flight plan course, the
FMS Heading Mode will automatically cease when the
course can be captured by normal FMS lateral
(b) Termination of FMS Heading Mode.
With no further action on the part of the pilot, the FMS
will automatically drop the FMS Heading mode and
recapture the final approach course when the final
course is intercepted, without overshoot. To manually
terminate the FMS Heading mode, select DIRECT /
TO the FAF or any other waypoint. The FMS will
immediately resume FMS course guidance.