System Operation
3-72
GNS-X
LS
Flight Management System
Rev. 3
Sep/96
NOTE: CRUISE ALT may also be inserted on VNAV Page 1, line 3
(adjacent to the TO waypoint field) when #TOC or #TOD are the TO
waypoint. The cruise ALT may automatically be entered by the pres-
elector if the preselector has the capability and the system is config-
ured for digital preselector.
A (at or above) or B (at or below) constraint entries are not applicable
on this page. Setting a cruise altitude will establish a #TOD (Top of
Descent) waypoint or a #TOC (Top of Climb) waypoint if VNAV is
valid. A #TOC will be established only if there are no altitude con-
straints between the aircraft and #TOC and the aircraft is climbing.
5.
ENTER Key - DEPRESS.
6.
Transition Level - INSERT
or VERIFY. (Figure 3-121)
NOTE: Field defaults to
FL180 if pilot does not enter
a value. Anytime a TRANS
ALT is entered, the value
will remain in non-volatile
memory even after the sys-
tem is shut down.
7.
ENTER Key - DEPRESS.
8.
Default Flight Path Angle (DEFAULT FPA) - INSERT or VERIFY
(in degrees and tenths, 0.1 to 6.0 range).
NOTE: Field defaults to 3.0 if pilot does not enter a value. Anytime an
FPA is entered, the value will remain in non-volatile memory even
after the system is shut down.
If configured, altitude preselector information will be displayed at the
bottom of the screen. If the aircraft is in a climb or descent, distance
and ETA information to the preselected altitude will be displayed.
(
9.
ENTER Key - DEPRESS to return to VNAV Page 1.
CREATING/CHANGING VNAV WAYPOINTS
Vertical navigation constraints can only be programmed for waypoints
on the Active Flight Plan, and though all Active Flight Plan waypoints
are displayed on VNAV Pages, new waypoints must be added to the
Active Flight Plan before they appear on the VNAV Flight Plan way-
point pages.
CRUISE ALT
FL210
TRANS LEVEL
FL180
DEFAULT FPA
3.0
PRESEL
ALT
FL210
RANGE
(NM)
150.5
ETE
00:15.6
VNAV DATA 1/1
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Figure 3-121
Summary of Contents for GNS-XLS
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