BendixKing SG 465 System EFS 50 - Manual (Page 68)

EHSI Displays
4.1.2 Issued 4/95 SW 06/07/08/11
Dual selectable compass inputs
are provided for. If a second
compass system is installed, the
cross-side source is selected by
means of a remote mounted
switch. Once the alternate com-
pass source has been selected,
a yellow HDG1 or HDG2 will be
displayed to the left of the lubber
line.
If both systems select the same
heading source, a yellow “HDG1”
or “HDG2” with a yellow box
around it will appear on both
EHSIs alerting the pilots that they
have the same source selected.
Figure 4.1.1
SAME HEADING SOURCE
SELECTION
When two compass sources are
available, the two inputs are
compared for agreement. If the
two inputs do not fall within 6-
degrees of each other while in
level flight, a yellow comparison
warning, HDG under a double-
ended arrow, will be annunciated
to the right of the lubber line.
See figure 4.1.5, EHSI SYMBOL
DEFINITION.
NAVIGATION SOURCE
ANNUNCIATION
A vertical three- or four-letter
alphanumeric readout located on
the left or right side of the dis-
play, depending on vertical scale
side selection, indicates the sys-
tem selected as the primary navi-
gation sensor.
For dual sensor installations the
cross-side navigation system
may be selected by pressing the
1-2 push button. Example: pilot
selecting co-pilot’s navigation
system or co-pilot selecting pilot’s
navigation system. The 1-2 push
button will not be active if the
system configuration does not
support two of the same type
NAV sensors.
Green annunciations indicate an
on-side approach NAV system or
an enroute NAV system which
has been approved for approach
use is being displayed. Yellow
indicates the cross-side system
has been selected. Cyan annun-
ciations apply to on-side non-
approach LNAV systems. These
color codes apply to the NAV
source annunciator, CRS pointer,
deviation bar, CRS line in MAP
mode, CRS, distance, ground-
speed readout, time-to-station
readout, drift angle pointer, and
vertical deviation pointer.
Note: For GPS installations, the
color of annunciators may not
change at mode arming unless
the mode enable transition coin-
cides with the mode arm.
If both sides select the same
navigation source, (i.e., pilot and
co-pilot select VOR 2) a yellow
box is placed around the naviga-
tion source annunciator on both
EHSI‘s.
If both sides select their respec-
tive cross-side navigation source
(i.e., pilot selects system 2, co-
pilot selects system 1) then both
HDG1 HDG1
COPILOT PILOT