190-00820-11 Rev. A
Pilot’s Guide for the Cirrus SR2x with Cirrus Perspective by Garmin
525
AUTOMATIC FLIGHT CONTROL SYSTEM
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
r
oll
a
XiS
The autopilot roll axis uses roll rate to stabilize aircraft roll attitude during flight director maneuvers. The
flight director roll commands are rate- and attitude-limited, combined with roll damper control, and sent
to the roll servo motor.
y
aw
a
XiS
The yaw damper uses yaw rate and roll attitude to dampen the aircraft’s natural Dutch roll response. It
also uses lateral acceleration to coordinate turns and reduce or eliminate the need for the pilot to use rudder
pedal force to maintain coordinated flight during climbs and descents.
ENGAGEMENT
When the
AP
Key is pressed, the autopilot, yaw damper, and flight director (if not already active) are
activated. The flight director engages in Pitch and Roll Hold Modes when initially activated. When the
YD
Key is pressed, the system engages the yaw damper independently of the autopilot (if not already engaged).
Autopilot and yaw damper status are displayed in the center of the AFCS Status Box. Engagement is indicated
by green ‘AP’ and ‘YD’ annunciations, respectively.
Figure 7-27 Autopilot and Yaw Damper Engaged
Autopilot
Engaged
Yaw Damper
Engaged
DISENGAGEMENT
NOTE:
The autopilot does not disengage when the MET Switch is pressed.
Pushing the
AP
Key on the AFCS Control Panel disengages the autopilot. Manual autopilot disengagement
is indicated by a five-second flashing yellow ‘AP’ annunciation and a three-second autopilot disconnect aural
alert.
Figure 7-28 Manual Autopilot Disengagement
Pushing the
AP DISC
button disengages the autopilot, yaw damper, and flight director. Pushing the
YD
Key disengages the yaw damper and the autopilot. When the yaw damper and autopilot are manually
disengaged, both the ‘AP’ and ‘YD’ annunciation turn yellow and flash for 5 seconds and a three-second
autopilot disconnect aural alert is generated.
Figure 7-29 Autopilot and Yaw Damper Disengagement
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