Engagement - Garmin G1000 Pilot's Manual

AUTOMATIC FLIGHT
CONTROL SYSTEM

ENGAGEMENT

When the AP key is pressed, the Autopilot, Yaw
Damper, and Flight Director (if not already engaged) are
activated. The Flight Director starts in Pitch and Roll
Hold Modes when first engaged.
When the YD key is pressed, the system engages the
Yaw Damper independently of the Autopilot.
Autopilot and Yaw Damper status are displayed in the
center of the AFCS Status Bar. Engagement is indicated by
green 'AP' and 'YD' annunciations, respectively.
Autopilot
Engaged
Figure 8-16 Autopilot Engaged Annunciation
CONTROL WHEEL STEERING
NOTE: Autopilot engagement/disengagement
is not the same as servo engagement/disen-
gagement. Servos can be disengaged while the
Autopilot remains engaged (active) through the
use of the CWS switch.
During Autopilot operation, the pilot may wish to
hand-fly the aircraft without disengaging the Autopilot.
Pressing and holding the CWS button disengages the
pitch and roll servos from the flight control surfaces and
allows the pilot to hand-fly the aircraft. At the same time,
the Flight Director is synchronized to the aircraft attitude
during the maneuver. The 'AP' annunciation is temporar-
ily replaced by 'CWS' in white for the duration of CWS
maneuvers.
8-18
Yaw Damper
Engaged
Garmin G1000 Pilot's Guide for Beechcraft 58/G58
Control Wheel Steering Activity
Figure 8-17 CWS Annunciation
In most scenarios, releasing the CWS button reengag-
es the Autopilot with a new reference. Refer to the Flight
Director Modes section for CWS behavior for each mode.
OVERSPEED PROTECTION
While in Pitch Hold, Vertical Speed, or Flight Level
Change Mode, airspeed is monitored by the Flight Di-
rector. In these modes, pitch commands are limited for
overspeed protection. Overspeed protection is provided
in situations where the Flight Director cannot acquire and
maintain the pitch mode reference for the selected pitch
mode without exceeding the certified maximum Autopilot
airspeed.
When an Autopilot overspeed warning occurs, the Air-
speed Reference Box appears above the Airspeed Indica-
tor, flashing between 'MAXSPD' annunciations:
Figure 8-18 Overspeed Annunciations
Engine power should be reduced and/or the pitch ref-
erence adjusted to slow the aircraft. The annunciation
disappears when the overspeed condition is resolved.
190-00629-00 Rev. B