System Operation
3-14
GNS-XLS Flight Management System
Rev. 3
Sep/96
b. to INVERT and transfer
the Stored Flight Plan
with waypoint sequence
reversed to Active Flight
Plan status, press the
BACK Key to display
INVERT?. (Figure 3-17)
6. ENTER Key - DEPRESS.
7. ACTIVE FPL - CON-
FIRM.  Observe that the
Stored Flight Plan trans-
ferred to the ACTIVE FPL
Page as SELECTED or
INVERTED.  (Figure 3-18)
INITIAL LEG SELECTION
An initial From/To Leg or
Direct To Leg must be estab-
lished  in order for the system
to provide guidance along
the Flight Plan. From the
ACTIVE FPL Page , the fol-
lowing procedure is used.  
1. NAV Key - DEPRESS.
2. FR Waypoint - VERIFY.  The first waypoint on the Active Flight
Plan will appear in the FR field.  To change the FR waypoint,
insert the desired identifier.
3. ENTER Key - DEPRESS.  The next waypoint in the Active Flight
Plan sequence will appear in the TO field.
4. TO Waypoint - VERIFY.
To change the TO way-
point, insert the desired
identifier.
5. ENTER Key - DEPRESS.
6. DIS, DTK - CHECK for
reasonableness.  (Figure
3-19)
If this leg selection is part of
an active flight plan involving
 BDF
 GSH
   KDTW
   ******
DEPART
ARRIVE           INVERT?
APPROACH           ERASE
FLIGHT PLAN  5  3/3
>
<
<
<
<
<
>
Figure 3-17
   KSNA    - KDTW
   MUSEL
   HEMET
   TRM
   EED*
   TBC
DEPART
ARRIVE            ETE
APPROACH           ERASE
   ACTIVE FPL   1/3
>
<
<
<
<
<
>
Figure 3-18
FR KSNA -----
TO MUSEL -----
DIS                 13.1
ETE               ------
DTK                  186
GS                 -----
WIND             ---/---
         -AUTO-
   NAVIGATION      1/4
>
<
<
>
>
Figure 3-19