BendixKing KFC 500 - Manual (Page 23)

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KCP 520 FLIGHT COMPUTER
The KCP 520 Flight Computer pro-
vides all of the command computa-
tions for flight director and autopilot.
The KCP 520 houses four proces-
sors. One Flight Director and two
(redundant) Autopilot processors
provide the helicopter control logic
while a dedicated Maintenance pro-
cessor assists in diagnostics and
maintenence. Inputs to the Flight
Computer include Navigation infor-
mation from the EFS 40 Symbol
Generator, Air Data from the Central
Air Data Computer, control position
feedback from the control position
transducers, and Attitude,
Directional, and Rate information
from Vertical, Directional, and Rate
gyros. The KCP 520 outputs servo
drive to move the linear and trim
actuators. Flight Director commands
are provided to the symbol generator
for display on the EADI.
AUTOPILOT/EFIS MASTER
Independent power to each set of
EFS 40 displays is provided through
the EFS Master switch. LEFT EFIS
MSTR (Co-pilot ) and RT EFIS
MSTR (Pilot) switching is located on
the pedestal. EFS 40 EADI bright-
ness is controlled via the respective
ADI BRT knob located on switch
panel.
The Autopilot Master switch pro-
vides the power input to the
Automatic Flight Control System.
Switching the AP MSTR to the
"OFF" position while autopilot cou-
pled will result in an autopilot discon-
nect. Flight director will remain oper-
ational when the AP MSTR is "OFF".
PILOT SWITCH/ANNUNCIATORS
CMPST
The CMPST switch/
annunciator enables/dis-
ables the Composite
Reversionary mode for
the Electronic Flight Instrument
System. When the Composite Mode
is activated, the information on the
EADI and EHSI are combined to pro-
vide a single reversionary display on
both tubes. This mode is available in
case an EFIS display unit becomes
inoperable. The CMPST pushbutton
lluminates an amber chevron-filled
box to annunciate activation. On
four-tube (both pilot's and co-pilot's)
EFS 40 installations, both sets of
displays offer this functionality inde-
pendently. Please refer to the EFS
40/50 Pilot's Guide for detailed EFIS
information.
CMPST DG SEL
1 2
DME
HOLD
VG SEL
1 2
VG
FAST
ERECT
CMPST
KCP 520 ı
EFIS
LEFT MSTR
EFIS
RT MSTR
OFF
AP
MSTR
ADI
BRT
ADI
BRT