Introduction
The KFC
400
Flight ControlSys-
tem combinescomplete autopilot and
flightdirector computationfunctions in
asingle computer.
Its
digitalflight
computer and integratedarchitecture
enable the KFC
400
to determine air-
craftcontrolrequirementssooner, and
to executethem with greater smooth-
ness and accuracy than previous au-
topilotsystems.
Due primarily to itsdualchannel
flight computer design, the KFC
400
can more positively control the air-
craft while providing a level
of
safety
monitoring unavailablewith single
channel systems. Digital, solid-state
design throughout the Flight Control
System provides maximumreliability
while economizingonsystem weight
and required installation space.
The KFC
400
is designedto opti-
mize passenger andflightcrewcom-
fort, white stillprovidingaccuratecon-
trol responsein any flight situation.
Wherever possible, autopilot-induced
aircraft motionsborder on the lower
limitsof human perceptibility, ensuring
exceptionally smooth flight. Many of
the Flight Control System's maximum
commandablevalues, however, are
determinedfor each individual aircraft
during the Flight ControlSystem
certificationprocess. Consult the
KFC
400
Flight ManualSupplement
foryour aircraft for particular values.
and vertical flightdirector modesthe
KFC
400
provides automatic, three-
dimensionalflight controlwhen inter-
facedwith the
KNS
660
Flight Man-
agement System. With eachway-
point in aflight plan assigned an alti-
tude, the KFC
400
can command
climbs
or
descents for perfect altitude
operation.
Inaddition to afull rangeof lateral
1
Internalsafety monitorsand auto-
matic self-test functions keepconstant
track of the KFC
400's
status, and
providesignals for automatic shut-
down of impairedcontrolaxes or flight
director functions. When the
KFC
400
decouples an autopilot axis it both
disengagesthe affected servo clutch
and shuts off motor drivepower, pro-
viding dual layers of protection
against servo overcontrol.
Inaddition to reliability and light
weight, the KFC
400
isdesigned to be
easy to maintain inthe field. Self-con-
taineddiagnostic tests assisttrouble-
shooting done by maintenanceper-
sonnelat BendixMing factory-ap-
proved service centers. The test func-
tions enable a technician to trace a
fault
to
the individual circuit board, or
externalsensor concerned. Circuit
boards inside remote-mounted
components areinstalledvertically, to
prevent condensation pooling.
Circuitry with the highest heat dissi-
pationrequirements are located near-
est the walls of each component
enclosureto optimize thermalman-
agement and serviceability. Qualified
Bendix/King service centersaround
the world are ready to provide assis-
tance whenever necessary.
The KFC
400
can interfacewith
electromechanical flight instruments
or the latest electronic displays, as
wellas navigation systems, radar al-
timetersand other peripheralcompo-
nents. All of the KFC
400's
digital
interfaces are based on ARlNC
429
specifications, and analog/digital con-
verters are supplied wherever neces-
sary to providethe greatest interface
versatility.
