BendixKing KAP 140 User Manual

Page 90

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KCS 55A Compass System


Rev. 0

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.)

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 KAP 140 Autopilot to pro-
vide 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

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.