System Operation
3-80
GNS-XLS Flight Management System
Rev. 3
Sep/96
3. Altitude Constraint - INSERT new altitude constraint followed by A
(at or above) or B (at or below), if applicable. Any altitude value
entered greater than the Transition Level value on the data page is
converted and displayed as FL (flight level, rounded off to the near-
est hundred feet). An altitude less than 1000 feet must be entered
with a preceding zero.
4. ENTER Key - DEPRESS.
Option 3: Using the VNAV WAYPOINT Page
1. NAV, FPL, or d Key - DEPRESS to display applicable page.
2. Line Select Key - DEPRESS to position cursor over desired waypoint.
NOTE: On NAVIGATION Pages, only the TO Waypoint can be selected.
3. VNAV Key - DEPRESS
to display VNAV WAY-
POINT Page for selected
waypoint. (Figure 3-131)
4. ALT - INSERT new alti-
tude constraint followed
by A (at or above) or B
(at or below), if applica-
ble. Only two or three
digits are required to
input an altitude, i.e. enter
30A and 3000A is dis-
played.
Any altitude value entered greater than the Transition Level
value on the data page is converted and displayed as flight level
(FL). An altitude less than 1000 feet must be entered with a pre-
ceding zero.
NOTE: If the waypoint is part of a SID, STAR or Approach proce-
dure, the altitude constraint prefills from database. “Cross-Between
two Altitudes” type constraints, as shown in Figure 3-130, cannot be
programmed manually.
5. ENTER Key - DEPRESS. Cursor moves to OFFSET field.
6. ENTER Key - DEPRESS. The cursor moves to the FPA field.
7. ENTER Key - DEPRESS to return to the page where the VNAV
waypoint was accessed.
WAYPOINT CIVET
ALT 14000A FL180B
EST CROSSING 0
OFFSET ---
REQ FPM DN 450
FPA (DEF) DN 3.0
DIRECT FPA UP 1.3
VNAV WAYPOINT 1/1
>
>
>
WAYPOINT CIVET
ALT 14000A FL180B
EST CROSSING FL230
OFFSET ---
REQ FPM DN 450
FPA (DEF) DN 3.0
DIRECT FPA DN 1.3
Figure 3-131
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