Using Vnav Flight Plan Waypoints Page; Vertical Navigation - Enroute; Programming Vertical Path Descents - Honeywell GNS-XLS Operator's Manual

System Operation
6. Repeat Steps 2 through 5 to review VNAV waypoint data at
remaining waypoints.

Using VNAV Flight Plan Waypoints Page

1. VNAV Key - DEPRESS to display the VNAV FLIGHT PLAN
WAYPOINTS Pages.
2. Line Select Key - DEPRESS to position the cursor over the
desired waypoint.
3. ENTER Key - DEPRESS. The VNAV WAYPOINT Page appears
with the cursor over the ALT field. (Figure 3-126)
4. ALT - REVIEW or INSERT new value.
NOTE: If the FPA was
retrieved from the database,
(DB) appears in the FPA
type field. (Figure 3-126)
5. ENTER Key - DEPRESS
to return to the VNAV
FLIGHT PLAN WAY-
POINTS Page.
6. Repeat Steps 2 through
5 to review or change
altitude constraints at
remaining waypoints.

VERTICAL NAVIGATION - ENROUTE

PROGRAMMING VERTICAL PATH DESCENTS

The pilot can use various methods to load a Flight Path Angle (FPA)
and determine the aircraft's descent path.
NOTE: When the system detects a rapid change of baro altitude set-
ting, non-continuous data from an air data computer, vertical speed
change of more than 40ft/sec, or sequencing to the next waypoint on
the active flight plan, the vertical deviation output is momentarily set
Invalid. When vertical deviation returns to a valid state, the appropri-
ate value of vertical deviation will again be displayed.
3-76
ALT
EST CROSSING
OFFSET
REQ FPM
FPA
DIRECT FPA
GNS-X Flight Management System
LS
VNAV WAYPOINT 1/1
WAYPOINT RW30L
DN 1450
(DB) DN
DN
Figure 3-126
633
>
633
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0.9
Rev. 3
Sep/96