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System Operation
3-73
GNS-XL Flight Management System
Rev. 0
Oct/96
After initial leg selection on NAV page 1:
1. NAV, FPL, or d Key - DEPRESS to display applicable page.
2. Line Select Key - DEPRESS to position cursor over desired way-
point.
NOTE: On NAVIGATION Pages, only the TO Waypoint can be
selected. If the waypoint is selected from either the NAV, or Direct
pages, Direct FPA information pages will be displayed on the last line
of the screen. ( Figure 3-123)
3. VNAV Key - DEPRESS
to display VNAV WAY-
POINT Page for selected
waypoint. (Figure 3-122)
4. ALT - INSERT altitude
constraint followed by A
(at or above) or B (at or
below), if applicable.
Only two or three digits
are required to input an
altitude, i.e. enter 30A
and 3000A is displayed.
Full digit entry may be used to enter an altitude. Altitudes less
1000 feet enter a preceding zero, i.e. enter 054 and 54 feet is
displayed.
Any altitude entered greater than the transition level is converted
and displayed as flight level (FL).
NOTE: If the waypoint is part of a SID, STAR or Approach proce-
dure, appropriate altitude constraints will prefill from the database.
5. ENT Key - DEPRESS. Cursor moves to OFFSET field. (Figure
3-123)
6. OFFSET - If applicable,
INSERT value in nautical
miles (-99 to +99 range).
a. If the offset is prior to
the waypoint, enter
the range value and
a (-) prefills as a
default or
WAYPOINT MENLO
ALT 3000A
EST CROSSING 3000
OFFSET ---
REQ FPM -----
FPA (DEF) DN ---
DIRECT FPA UP 0.0
VNAV WAYPOINT 1/1
>
>
>
Figure 3-123
WAYPOINT MENLO
ALT -----
EST CROSSING -----
OFFSET ---
REQ FPM -----
FPA ---
DIRECT FPA -----
VNAV WAYPOINT 1/1
>
>
Figure 3-122