Pilot's Guide

190-00663-02 Rev. B
Garmin G1000 Pilot’s Guide for the Hawker Beechcraft C90A/GT/GTi
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AUTOMATIC FLIGHT CONTROL SYSTEM
SECTION 7 AUTOMATIC FLIGHT CONTROL SYSTEM
7.1 AFCS OVERVIEW
NOTE: The approved Pilot’s Operating Handbook (POH) and FAA Approved Airplane Flight Manual (AFM)
always supersedes this Pilot’s Guide.
The GFC 700 is a digital Automatic Flight Control System (AFCS), fully integrated within the G1000 System
avionics architecture. The System Overview section provides a block diagram to support this system description.
GFC 700 AFCS functionality is distributed across the following Line Replaceable Units (LRUs):
•GDU1040APrimaryFlightDisplays(PFDs)(2)
•GMC710AFCSControlUnit
•GIA63WIntegratedAvionicsUnits(IAUs)(2)
•GSA81AFCSServos(4)
•GSM85AServoMounts(4)
The GFC 700 AFCS can be divided into these main operating functions:
•Flight Director (FD)—TheBeechcraftC90A/GThastwoightdirectors,eachoperatingwithinanIAUand
referred to as pilot-side and copilot-side. Commands for the selected flight director are displayed on both
PFDs.
The flight director provides:
– Command Bars showing pitch/roll guidance
– Vertical/lateral mode selection and processing
– Autopilot communication
•Autopilot (AP)—Autopilotoperationoccurswithinthepitch,roll,andpitchtrimservos.Italsoprovides
servo monitoring and automatic flight control in response to flight director steering commands, Attitude and
Heading Reference System (AHRS) attitude and rate information, and airspeed.
•Yaw Damper (YD)—Theyawservoisself-monitoringandprovidesDutchrolldampingandturncoordination
in response to yaw rate, roll angle, lateral acceleration, and airspeed.
•Manual Electric Pitch Trim (MEPT) — The pitch trim servo provides manual electric pitch trim capability
when the autopilot is not engaged.