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CSP A--013
MASTER
Primary Mode --- Course Indications
Figure 12---70---20 Sheet 1
Indicate airplane position
relative to the selected
bearing source. The head of
the pointers extend away
from the bearing value, while
the tails point toward the
reciprocal value. At least the
head or the tail will be
displayed at all times,
indicating the current bearing
values.
Heading Scale (Compass Rose) Selected Course Bug
10 10
AP 10
SYNC
PRI
HDG
ALT
LOC 1
GS
5 5
21
1700
--5 --5
M .545
240
220
200
180
160
VOR 1
10.0 NM
190 GS
CRS 240
ADF1
ADF2
0.0 VS
21
30
2 000
100
900
800
00
000
1
21
30
Heading Scale (Artificial Horizon)
21
Selected Course Bug
Travels along the horizon line if the
selected course is within the displayed
portion of the heading scale. The
selected course bug is limited at the
edges of the heading scale and is
ghosted (drawn with dashed lines) if
the value is off--scale.
Indicates course as set at CRS knob
on flight control panel. The head of
the bug points to the selected course
value while the tail points to the
reciprocal value. At least the head or
the tail will be displayed on the
heading scale at all times, indicating
the currently selected course.
TAIL HEAD
Bearing Pointers
Selected Heading Bug
(Artificial Horizon)
Indicates heading selected at HDG
knob on flight control panel.
When selected heading is off--scale,
bug is removed.
Heading Index
Indicates current magnetic (or true)
heading when read against heading
scale.
BEARING POINTER
No. 1
HEAD TAIL
BEARING POINTER
No. 2
REV 56, Jan 31/03
Vol. 1 12--70--48
FLIGHT INSTRUMENTS
Head--Up Guidance System
Flight Crew Operating Manual MASTER
CSP A--013
Primary Mode --- Course Indications
Figure 12---70---20 Sheet 2
000
VOR2
Also known as the course
deviation indicator (CDI),
indicates airplane deviation
from the selected course ( left
or right of VOR or localizer
radial) relative to the course
deviation scale.
An excessive localizer
deviation (more than 2 dots)
at an altitude of less than 600
feet AGL, is annunciated by
a continuous flashing of the
CDI.
Lateral Deviation Bar Heading Scale (Compass Rose)
10 10
AP 10
SYNC
PRI
HDG
ALT
LOC 1
GS
5 5
24
1700
--5 --5
M .545
240
220
200
180
160
VOR 1
10.0 NM
190 GS
CRS 240
ADF1
ADF2
0.0 VS
21
30
2
100
900
800
00
000
1
21
30
Bearing Source Indicators
Indicates the current bearing
information sources. The
indications consist of the
characters VOR 1, ADF1, VOR
2 and ADF 2 (1 is on--side; 2 is
off--side), depending upon the
bearing sources selected. The
characters are followed by a
replica of the corresponding
bearing pointer head.
An FMS bearing source is not
annunciated.
Selected Course
Readout
Indicates course as
selected at CRS knob
on flight control panel.
Displayed and
remains on for 5
seconds, anytime
the course value is
changed or when
value is off--scale.
Marks representing --2, --1,
0, +1 and +2 dots of
localizer or VOR deviation.
Course Deviation Scale
The To/From pointer is
added to the course
deviation scale whenever a
VOR deviation exists. Points
in the same direction as the
selected course bug to
represent a ‘To’ indication
and in the opposite
direction to represent a
‘From’ indication.
To/From Indicator
ADF1
ADF2
Bearing Source Failure Flags
A bearing source failure is
indicated by boxing the affected
bearing source characters and
the corresponding bearing
information removed from the
display.
, ,
, .
ADF1 ADF2
VOR1
NOTE
The CDI is limited to
the edge of the
course deviation
scale in view. When
the localizer deviation
is 2 dots or less but is
outside of the course
deviation scale’s field
of view, the CDI is
ghosted (drawn with
dashed lines).
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