User Guide

190-00592-02 Rev. A Garmin G1000 Pilot’s Guide for the Diamond DA40/40F 7-20
AUTOMATIC FLIGHT CONTROL SYSTEM
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 CWS behavior in each mode.
Figure 7-18 CWS Annunciation
Control Wheel Steering
DISENGAGING THE AUTOPILOT
Automatic disengagement occurs due to:
• System failure
• Inability to compute default flight director
modes (FD also disengages automatically)
• Invalid sensor data
• Stall warning
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 Switch.
Figure 7-19 Automatic Autopilot Disengagement
Autopilot Automatically Disengaged
The autopilot may be manually disengaged by pushing the AP DISC or Go Around 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. The
AP DISC or AP TRIM Switch may be used to cancel the
aural alert.
Figure 7-20 Manual Autopilot Disengagement
Autopilot Manually Disengaged