System Operation
3-125
GNS-X
LS
Flight Management System
Rev. 3
Sep/96
Aircraft Not Equipped With A TRUE/MAG Switch
NOTE: This procedure must be accompanied by the input of TRUE
heading into the system.
1.
NAV Key - DEPRESS until NAVIGATION Page 3 appears.
2.
LINE SELECT Key - DEPRESS to place cursor over the VAR
field.
3.
INSERT E0.
4.
ENTER Key - DEPRESS.
NOTE: The Variation is now E0 and the system will be referenced to
TRUE north. There will be no T annunciation adjacent to BRG, HDG
and TK.
SET HEADING ENTRY
When an IRS is placed in the
Attitude Mode the message
ENTR SET HDG appears on
the SENSOR MESSAGES
Page. It is necessary to
enter a set heading in order
to allow the IRS to output
valid magnetic heading data.
To Enter A Set Heading:
1.
NAV Key - DEPRESS
until NAVIGATION Page
3 is displayed. The
heading field may
appear as dashes.
(Figure 3-198)
2.
Line Select Key -
DEPRESS to place the
cursor over HDG field.
The last valid heading
value appears. (Figure
3-199)
3.
HDG - VERIFY or INSERT.
4.
ENTER Key - DEPRESS
FR ABQ
01:09
TO‘ PGS
01:57
DRIFT
R 002
VAR
E 12
TAS
420
HDG
---
BRG
219
TK
267
NAVIGATION 3/4
<
<
>
>
Figure 3-198
FR ABQ
01:09
TO‘ PGS
01:57
DRIFT
R 002
VAR
E 12
TAS
420
HDG
269
BRG
219
TK
267
NAVIGATION 3/4
<
<
>
>
Figure 3-199
Summary of Contents for GNS-XLS
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