Ki 525A Indicator - Honeywell Bendix/King KFC 225 Pilot's Manual

KCS 55A Compass System

KI 525A Indicator

The KI 525A Pictorial
Navigation Indicator is the panel dis-
play for the KCS 55A Compass
System. It replaces the standard
Directional Gyro and Course
Deviation Indicator (CDI) in the air-
craft's panel, combining slaved
NAV warning
Flag
Heading
Select
Bug
NAV
GS
Dual
Glideslope
Pointers
Symbolic
Aircraft
VOR and LOC
Deviation Bar
Course
Select Knob
VOR/LOC
Deviation Scale
KI 525A Pictorial Navigation Indicator
Description of Indicator and
Display Functions
Compass Card - Responding to the
input from the slaved directional
gyro, this card rotates within the dis-
play so that the aircraft heading is
always at the top, under the lubber
line.
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KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM
heading and VOR/LOC/Glideslope
information into one compact dis-
play. By providing a simple, compre-
hensive visual presentation of the
aircraft's heading and position in
relation to a desired course, the
pilot's navigation workload is consid-
erably reduced.
Lubber Line Compass
Warning Flag
Course
Select
HDG
N
Pointer
GS
To-From
Indicator
Glideslope
Deviation
Scale
Heading
Select
Knob
ı
Compass Card
Lubber Line - A fixed white marker
at the top of the display that indi-
cates aircraft magnetic heading on
the compass card.
Symbolic Aircraft - A fixed repre-
sentation of the actual aircraft. This
miniature aircraft always points
toward the top of the display and the
lubber line.
Rev. 0
Apr/99
Selected Course Pointer - On this
two-part arrow, the "head" indicates
the desired VOR or Localizer course
and the "tail" indicates the reciprocal.
This pointer is set by rotating the
course select knob.
Course Select Knob - Used to
rotate the course pointer to the
desired course on the compass
card. This knob corresponds to the
Omni Bearing Selector (OBS) on
standard NAV indicators.
VOR/RNAV and LOC Deviation -
This bar corresponds to the
"left/right" needle on standard course
deviation indicators. When the air-
craft is precisely on the VOR radial
or Localizer course, it forms the cen-
ter section of the selected course
pointer and will be positioned under
the symbolic aircraft. When off
course or approaching a new
course, it will move to one side or
the other. Since the entire VOR and
Localizer display rotates with the
compass card, the angular relation-
ship between the deviation bar and
the symbolic aircraft provides a pic-
torial symbolic display of the air-
craft's position with respect to the
selected course.
Deviation Scale - When tuned to a
VOR frequency, each white dot rep-
resents two degrees of deviation left
or right of course. When tuned to a
Localizer, the deviation is 1/2 degree
per dot. (When GPS data is selected
for presentation, refer to the Pilot's
Guide for the GPS receiver.)
Rev. 0
KFC 225 AUTOMATIC FLIGHT CONTROL SYSTEM
Apr/99
KCS 55A Compass System
Heading Select Bug - A movable
orange marker on the outer perime-
ter of the display, used primarily to
select the desired heading you wish
to fly. This desired heading is cou-
pled to the KFC 225 Flight control
system to provide the "Heading
Select" function.
Heading Select Knob - Used to
rotate the heading select bug to a
desired point on the compass card.
To-From Indicator - A white triangle
near the center of the display that
indicates, with reference to the OBS
setting, whether the course selected
is "to" or "from" the selected VOR
station and/or RNAV waypoint.
Dual Glideslope Pointers -
Chartreuse triangular pointers on
either side of the display drop into
view when a usable glideslope sig-
nal is received and retract out of
view when the glideslope signal
becomes marginal. During an ILS
approach, these pointers represent
the vertical orientation of the aircraft
with respect to the center of the
glideslope beam. When on glides-
lope, the pointers will align with the
center markers on the glideslope
scale.
Glideslope Deviation Scale - White
dots on each side of the display
which, in conjunction with the glides-
lope pointers, indicate either
"above", "below", or "on glideslope"
during an ILS approach.
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