Garmin DA40 GPS Receiver User Manual


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190-00592-06 Rev. A
Garmin G1000 Pilot’s Guide for Diamond DA40/40F
387
AUTOMATIC FLIGHT CONTROL SYSTEM
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES INDEX
CONTROL WHEEL STEERING
During autopilot operation, the aircraft may be hand-flown without disengaging the autopilot. Pressing and
holding the
CWS
Button disengages the pitch and roll servos from the flight control surfaces and allows the
aircraft to be hand-flown. At the same time, the flight director is synchronized to the aircraft attitude during
the maneuver. The ‘AP’ annunciation is temporarily replaced by ‘CWS’ in white for the duration of CWS
maneuvers.
In most scenarios, releasing the
CWS
Button reengages the autopilot with a new reference. Refer to the flight
director modes section for specific CWS behavior in each mode.
Figure 7-27 CWS Annunciation
Control Wheel Steering
DISENGAGING THE AUTOPILOT
The autopilot is manually disengaged by pushing the
AP DISC Switch, GA Switch, AP TRIM ARM Switch,
or
the
AP
Key on the MFD. Manual disengagement is indicated by a five-second flashing yellow ‘AP’ annunciation
and a two-second autopilot disconnect aural alert. After manual disengagement, the autopilot disconnect aural
alert may be cancelled by pushing the AP TRIM ARM or
AP DISC
Switch (
AP DISC
Switch also cancels the
flashing ‘AP’ annunciation).
Figure 7-28 Manual Autopilot Disengagement
Automatic autopilot disengagement is indicated by a flashing red ‘AP’ annunciation and by the autopilot
disconnect aural alert, which continue until acknowledged by pushing the AP DISC or
AP TRIM ARM
Switch.
Automatic disengagement occurs due to:
•Systemfailure
•Inabilitytocomputedefaultightdirectormodes
(FD also disengages automatically)
•Invalidsensordata
Figure 7-29 Automatic Autopilot Disengagement
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