BendixKing KFC 500 - Manual (Page 28)

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EFS 40 is the state-of-the-art
Electronic Flight Instrumentation
System with four inch displays.
Because EFS 40 is so broad in its
capabilities, the following section
attempts to describe only the
information about the system that
pertains to the KFC 500 Flight
Control System.
Normal Attitude Display
Pitch Attitude — Pitch scale
reference marks extend above and
below the horizon line indicating 10,
20, 25, 30, 40, 50, 60, 70, 80 and 90
degrees.
Roll Attitude — EFS 40 provides a
movable index (sky) pointer for
displaying roll attitude. The roll
scale provides reference marks at
10, 20, 30, 45 and 60 degrees.
Symbolic Aircraft — Located in
the center of the display is the fixed
orange aircraft symbol. The pitch
and roll attitudes of the aircraft are
displayed by the relationship of the
fixed symbolic aircraft and the
moveable horizon. The symbolic
aircraft is flown to satisfy the
command cues of the flight director.
EFS 40 offers two symbolic
aircraft symbols, the cross pointer
and “v” bar. Selection of the single
cue command bars will present a
delta aircraft symbol, while selection
of the double cue command bars
will provide a traditional cross
pointer aircraft symbol. The double
cue command bars are the standard
presentation. Single cue display is
optional (EFS Configuration).
Heading Tape — A white heading
tape is fixed along the top of the
horizon line. Index marks appear
every five degrees with heading
values displayed every 30 degrees.
Flight Director Command Bars —
Flight director commands are
displayed as moving bar(s) when the
flight director is engaged.
Deactivating the flight director or an
invalid “FD” command will cause the
command bar(s) to be removed.
Autopilot/Flight Director Mode
Annunciation
The EFS 40 system will
annunciate a combination of the KFC
500 autopilot and flight director
modes. Engaged modes are
annunciated in green along the top of
the display and armed modes are
annunciated in white. All ARM
annunciations are displayed in white
until they become active.
The following figure describes
those modes supported and the
location in which they may be
displayed.
The following list of autopilot warning
annunciations will be displayed in the
Flight Control Annunciation field on
the electronic attitude indicator.
• PTRM red=pitch trim fail
• PTCH red=pitch servo failure
• ROLL red=roll servo failure
• YAW red=yaw servo failure
• RTRM red=roll trim servo failure
• YTRM red=yaw trim servo failure
• AP
red=autopilot disconnect
• YD red=yaw damper disconnect
Flashing amber is to annun-
ciate automatically discon-
nected modes.
EADI 40 Electronic Attitude Indicator