Cockpit Reference Guide

Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
190-00384-08 Rev. A
SECTION 6 – AUTOMATIC
FLIGHT CONTROL
6-23
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 6-27 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
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 MET Switch.
Figure 6-28 Automatic Autopilot Disengagement
Autopilot Automatically Disengaged
The autopilot is manually disengaged by pushing the
AP DISC Switch, GA Switch, MET ARM Switch, or the
AP Key on the MFD. Manual disengagement is indicated
by a five-second flashing yellow ‘AP’ annunciation and a
three-second autopilot disconnect aural alert. After man-
ual disengagement, the autopilot disconnect aural alert
may be cancelled by pushing the MET ARM or AP DISC
Switch (AP DISC Switch also cancels the flashing ‘AP’ an-
nunciation).
Figure 6-29 Manual Autopilot Disengagement
Autopilot Manually Disengaged