Cirrus Perspective
™
by Garmin – Pilot’s Guide for the SR20/SR22SR22T
190-00820-08 Rev. A
574
ADDITIONAL FEATURES
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
AUTOMATIC DESCENT MODE
NOTE:
Automatic Descent Mode does not account for terrain elevation.
As the system prepares for descent, the Selected Altitude is set to 14,000 and the AFCS enters Indicated
Airspeed (IAS) mode with the airspeed reference set to the maximum allowable airspeed setting for the specific
aircraft model. Refer to the Flight Director Vertical Modes in the AFCS section. AFCS lateral mode settings
are not affected.
As the descent begins, an ‘AUTO DESCENT’ warning is displayed in the Annunciation Window. ‘AUTO
DESCENT - Aircraft Descending to 14,000FT’ is displayed in the Alerts Window. ‘EDM’ is shown as an
AFCS Status Annunciation indicating the system has entered Automatic Descent Mode. ‘EDM’ (Emergency
Descent Mode) is the AFCS mode that is activated when Hypoxia Recognition initiates an automatic descent.
A continuous repeating chime will be heard as long as
Automatic Descent Mode is active. After the descent
begins, Automatic Descent Mode can only be canceled by disconnecting the autopilot.
As the aircraft reaches 14,000 feet the system sets the AFCS to Altitude Hold mode. The AFCS will also remain
in
Automatic Descent Mode as indicated by ‘EDM’ continuing to be displayed as an AFCS Status Annunciation.
The system again begins monitoring for pilot interaction.
If no pilot interaction is detected for four minutes, the system initiates the second descent. As the system
prepares for this descent, the Selected Altitude is set to 12,500 and the AFCS again enters IAS mode with the
airspeed reference set to the maximum allowable airspeed for the specific aircraft model.
As the descent begins, an ‘AUTO DESCENT’ warning is displayed in the Annunciation Window. ‘AUTO
DESCENT - Aircraft Descending to 12,500FT’ is displayed in the Alerts Window. ‘EDM’ is shown as an AFCS
Status Annunciation. Also, the continuous repeating chime is heard.
As the aircraft reaches 12,500 feet the system sets the AFCS to Altitude Hold mode. The AFCS will also remain
in
Automatic Descent Mode as indicated by ‘EDM’ continuing to be displayed as an AFCS Status Annunciation
as well as the continuing presence of the repeating chime. At this point, the AFCS must be disconnected to
cancel
Automatic Descent Mode.
Summary of Contents for Cirrus Perspective SR20
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