The bank command limit is used by the FMS
guidance function to limit FMS commanded banks to
the entered threshold. Turn anticipation for waypoint
sequencing along the flight plan is adjusted according
to the limit specified to minimize overshoot conditions.
On the Navigation Configuration page, the crew
may enter parameters for the waypoint alert and cross
track deviation threshold. Entering the number of
seconds for the waypoint alert will set an alert
annunciations on capsule lights or flight instrument
For cross track alerts, entering a value (in
nautical miles) for the cross track annunciation will
trigger an XTK ALERT when the cross track deviation
exceeds the entered threshold value. This alert is
inhibited during turns from one leg to the next.
(e) Selection of Flight Mode. On the
Navigation Configuration page, the current mode of
flight can be selected. The mode selection affects the
lateral steering scaling and integrity determination of
the GPS and INU/GPS navigation solutions. When
powered up, the FMS defaults to TERMINAL mode
until the aircraft has left the 30 nm terminal area
around the origin airport. When the aircraft comes
within 30 nm of the destination airport, the FMS
automatically transitions back to the TERMINAL mode.
When the aircraft reaches the Final Approach FIX
(FAF) of an approach, the FMS automatically
transitions to the APPROACH mode. Each flight mode
can be manually overridden on the Navigation
(7) Oceanic Reporting Function. The FMS-
800 provides an oceanic flight position reporting and
trip log function to simplify crew procedures for these
(a) Data Access and Display. To view
the Oceanic Mission page, first press the mission
(MSN) function key on the CDU. Then select the
Oceanic line key to display the Oceanic Reporting
page. Refer to Figure 3B-39 and Table 3B -30. This
page shows the current flight plan waypoints in
sequence with each waypoints respective ETA (for
future waypoints) or Actual Time of Arrival (ATA) (for
history waypoints). These may be read and reported
without additional paging. A typical position report
includes the time passing the most recent reporting
point and the ETAs of the next three reporting points
in UTC. The calculation of the active waypoints ETA
is based on current true airspeed and wind. All
subsequent waypoint ETAs are calculated using
current airspeed and either the current default or pilot-
entered leg wind for subsequent legs.
Each time a waypoint is passed into history, the
ATA is recorded by the FMS. To view this trip log of
waypoint passage times, scroll the list upward to view
the history waypoints and their ATAs. If waypoints
have been bypassed via a Direct-To operation, dashes
are displayed for the ATA.
Figure 3B-39. Oceanic Mission Pages
Table 3B-30. Oceanic Mission Pages
Press Mission Function Key - MSN.
Select OCEANIC page.
FROM waypoint (ATA).
TO waypoint (ETA).
Subsequent waypoints (ETA).
Waypoint ATAs or ETAs.
Waypoint positions or IDs.
A # indicates the waypoint is a history