190-00820-11 Rev. A
Pilot’s Guide for the Cirrus SR2x with Cirrus Perspective by Garmin
543
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
NON-ALTITUDE CRITICAL MODES (VS, VNAV, LVL, PIT, IAS)
If the aircraft decelerates to an IAS below the minimum commandable autopilot airspeed, a red “UNDERSPEED
PROTECT ACTIVE” annunciation (Figure 7-45) will appear in the CAS window. The vertical flight director
mode will change from active to armed (Figure 7-46), and the autopilot will cause the aircraft to pitch down
until reaching a pitch attitude at which IAS equals the minimum commandable autopilot airspeed.
Vertical FD
Mode Armed
Figure 7-46 Vertical Flight Director Mode Armed
When sufficient power/thrust is available, the autopilot will recapture the previously selected vertical
reference and the flight director mode will change from armed to active.
NOTE:
When the autopilot is outside normal operating limits, it uses more aggressive commands to return
to normal limits.
