Garmin G1000 PDAs & Smartphones User Manual


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190-00498-07 Rev. A
Garmin G1000 Pilot’s Guide for Cessna Nav III
429
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
SECTION 7 AUTOMATIC FLIGHT CONTROL SYSTEM
NOTE: The approved Pilot’s Operating Handbook (POH) always supersedes the information in this Pilot’s
Guide.
NOTE: A failure of the primary (#1) GIA 63/63W Integrated Avionics Unit (IAU) results in loss of the flight
director. Any IAU failure results in loss of the autopilot and manual electric trim.
NOTE: The GFC 700 is not available for the Cessna 172R.
The GFC 700 is a digital Automatic Flight Control System (AFCS), fully integrated within the System avionics
architecture. The System Overview section provides a block diagram to support this system description.
GFC 700 AFCS functionality in the Cessna NAV III aircraft is distributed across the following Line Replaceable
Units (LRUs):
•GDU1044BPrimaryFlightDisplay(PFD)
•GDU1044BMulti-FunctionDisplay(MFD)
•GIA63/63WIntegratedAvionicsUnits(2)
•GSA81AFCSServos(3)
•GSM85ServoMounts(3)
The GFC 700 AFCS can be divided into these main operating functions:
•Flight Director (FD)—Flightdirectoroperationtakesplacewithintheprimary(#1)IAU.Flightdirector
commandsaredisplayedonthePFD.Theightdirectorprovides:
–CommandBarsshowingpitch/rollguidance
–Pitch/rollmodeselectionandprocessing
– Autopilot communication
•Autopilot (AP) — Autopilot operation occurs within the pitch, roll and pitch trim servo and provides servo
monitoringandautomaticightcontrolinresponsetoightdirectorsteeringcommands,AHRSattitudeand
rate information, and airspeed.
•Manual Electric Trim (MET) — The pitch trim adapter provides manual electric trim capability when the
autopilot is not engaged.
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