190-00820-08 Rev. A
Cirrus Perspective
™
by Garmin – Pilot’s Guide for the SR20/SR22/SR22T
461
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
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
After manual disengagement, the autopilot disconnect aural alert and the flashing ‘AP’ annunciation may be
cancelled by pushing the
AP DISC
Button.
Automatic autopilot disengagement is indicated by a flashing red and white ‘AP’ annunciation and by
the autopilot disconnect aural alert, which continue until acknowledged by pushing the
AP DISC
Button.
Automatic autopilot disengagement occurs due to:
•
System failure
• Invalid sensor data
• Inability to compute default flight director modes
(FD also disengages automatically)
Summary of Contents for Cirrus Perspective SR20
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