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VNAV WAYPOINT 1/1 (Page 1 of 1)
Accessed by placing the cursor over a lateral WPT and pressing the
VNAV Key or by placing the cursor over a WPT in the VNAV section
and pressing ENTER key.
WAYPOINT:
VNAV waypoint will consist of from one to six alphanumeric charac-
ters.
ALT:
Constraint altitude prefills from database or can be manually entered.
Any altitude entered greater than the transition level (from the VNAV
DATA Page) is converted and displayed as flight level rounded off to
the nearest hundred feet. An altitude less than 1000 feet must be
entered with a preceding zero. Altitudes below sea level are limited
to -1000 feet. The following may appear in the altitude field:
• FL: Flight Level (Preceding the Altitude Value)
• A: At or Above (Following the Altitude Value)
• B: At or Below (Following the Altitude Value)
• Blank space: At (Following the Altitude Value)
NOTE: If the destination airport or runway is manually entered, or if
the airport/runway is loaded from the database, the airport elevation
will be displayed in the altitude field. If the flight plan is loaded
through AFIS, the airport elevation will not be available.
EST CROSSING:
Altitude trajectory computed
by the system to the Vertical
TO Waypoint based on cur-
rent groundspeed and
Vertical speed. (Figure 2-47)
This field is displayed for the
active vertical waypoint.
Page Display Definitions
2-40
GNS-XL Flight Management System
Rev. 0
Oct/96
WAYPOINT ISTET
ALT 2000
EST CROSSING FL250
OFFSET ---
REQ FPM DN 825
FPA (AUTO) DN 3.0
DIRECT FPA DN 2.8
VNAV WAYPOINT 1/1
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Figure 2-47