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NAVIGATION SECTION (NAV KEY)
Upon pressing the NAV Key the NAVIGATION 1/4 Page will be dis-
played and the following can be observed.
NAVIGATION PAGES
NOTE: If AFIS is installed in the system, the NAV section will consist
of five pages.
NAVIGATION 1/4 (Page 1 of 4)
FR:
The FROM waypoint identifier
is displayed on the left. If the
system has a valid ground
speed, the time of departure
or time overhead at that way-
point displayed on the right.
This line can also display
DIRECT, HOLD, PROCE-
DURE TURN, DME ARC or
PSEUDO VORTAC. (Figure
2-17)
TO:
The TO waypoint identifier is displayed on the left. If the system has a
valid ground speed, the ETA at that waypoint is displayed on the right.
The TO field may also display AR, HP or PT if the waypoint indicates
a DME ARC, Holding Pattern or Procedure Turn. The ETA field can
be changed to display constraint altitude and waypoint offset distance
if an altitude constraint has been programmed at the current TO way-
point by placing the cursor over this field and dressing the BACK Key
(Figure 2-17) See Section 3 for the procedure.
NX:
This line is normally blank (Figure 2-18) except during Waypoint Alert
(30 seconds prior to crossing the TO waypoint). In this case the next
(NX) waypoint identifier on the Active Flight Plan and the ETA at that
waypoint is displayed (Figure 2-19). When a Procedure Turn, Holding
Pattern, Heading, or Heading Intercept mode is in use, appropriate
information pertaining to that mode will be displayed in this field.
Page Display Definitions
2-13
GNS-XL Flight Management System
Rev. 0
Oct/96
FR 19DFW 20:28
TO ELD 20:30
DIS 1.6
ETE 00:00.6
DTK 074
GS 156
WIND 284/ 7
-AUTO-
NAVIGATION 1/4
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Figure 2-17