In VOR, a fivedot CDI deviation
indicates angular displacement of
1
Oo
from the selected course. RNAV full-
scale deflection indicates a five-mile,
linear displacement.
In
localizer, full-
scale
deflection indicates
1
.!io
to
3.0”
from the localizer centerline, depend-
ing
on
the approach. RNAV Approach
full-scale deflection indicates a
1.25-
mile linear displacement from the
selected course.
8.
To/From Indicator Flag
-
Indicates
direction of nav reference relative to
the selected course. The To/From
Flag is invalid
if
the Nav Flag is
displayed.
9.
Symbolic Aircraft
-
Stationary
symbol for display reference.
10.
Glideslope Pointer
-
Indicates
deviation from beam centerline during
glideslope tracking, in relation to the
Glideslope Scale.
11.
Glideslope Scale
-
Indicates
angular displacement from glideslope
beam centerline.
12.
Course Selector Knob
-
Moves
the Course Arrow in the direction of
knob rotation. The Course Selector
Knob is duplicated on the remote
Co
u rse/H ead ing Cont ro
II
er.
13.
Groundspeedmime-to-Station
Select Pushbutton
-
Selects DME
information for display in the right-
hand portion of the indicator. If radar
altitude is currently displayed, the
pushbutton is automatically disabled.
14.
Compass Flag
-
Warns that the
compass display is invalid due to
failure within
the
system’s internal
power supply, heading
servo
loop or
remote directional gyro. The Com-
pass Flag also swings into view during
manual slaving adjustment or,
momentarily, after selection
of
the
Slave position on the compass slaving
accessory.
15.
RMI Pointer
-
Displays the
current magnetic bearing to the active
waypoint, navaid or ADF ground
station, as selected by the Nav/ADF
selector lever on the KPI
5538.
16.
Heading Bug
-
Indicates current
heading for flight director tracking in
the Heading mode, as selected with
the Heading Selector knob. Except
during selection, the bug remains
stationary with respect to the Com-
pass Card.
17.
Heading Selector Knob
-
Moves
the Heading Bug on the Compass
Card in the direction
of
selector
rotation. The Heading Selector Knob
is duplicated on the remote Course/
Heading Controller.
18.
RMI
Nav/ADF Selector Lever
-
References the RMI Pointer to
indicate magnetic bearing to the
active waypoint or navaid or to the
ADF ground station in use. Reposi-
tioning the lever causes a small “Nav“
or “ADP flag to be displayed adjacent
to the Heading Selector Knob.
19.
Glideslope Flag -Warns that the
glideslope signal
is
invalid.
24
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