190-00820-11 Rev. A
Pilot’s Guide for the Cirrus SR2x with Cirrus Perspective by Garmin
506
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
ALTITUDE HOLD MODE (ALT)
Altitude Hold Mode can be activated by pressing the
ALT
Key; the flight director maintains the current
aircraft altitude (to the nearest 10 feet) as the Altitude Reference. The flight director’s Altitude Reference,
shown in the AFCS Status Box, is independent of the Selected Altitude, displayed above the Altimeter.
Altitude Hold Mode is indicated by a green ‘ALT’ annunciation in the AFCS Status Box.
Altitude Hold Mode is automatically armed when the flight director is in Selected Altitude Capture Mode
(see Figure 7-6). Selected Altitude Capture Mode automatically transitions to Altitude Hold Mode when the
altitude error is less than 50 feet. In this case, the Selected Altitude becomes the flight director’s Altitude
Reference.
When operating in Altitude Hold Mode, the reference altitude can be adjusted by
using the
NOSE UP/DN
Wheel. The reference altitude can only be moved a maximum of 150 ft from the current aircraft altitude; each
click changes the reference altitude by 10 ft.
NOTE:
Turning the
ALT SEL
Knob while in Altitude Hold Mode changes the Selected Altitude, but not the
flight director’s Altitude Reference, and does not cancel the mode.
Figure 7-7 Altitude Hold Mode
Selected
Altitude
Selected
Altitude
Bug
Command Bars Hold Pitch Attitude
To Maintain Altitude Reference
Altitude Hold
Mode Active
Altitude
Reference
