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Move flight controls fore, aft, left and right to verify that the
autopilot can be overpowered.
4. Autopilot ........................................DISENGAGE (press AP button)
5. Trim ................................................................ SET FOR TAKEOFF
Section 5 - Performance
• WARNING •
The autopilot may not be able to maintain all selectable
vertical speeds. Selecting a vertical speed that exceeds the
aircraft’s available performance may cause the aircraft to stall.
The autopilot will disconnect if the Stall Warning System is activated.
Section 6 - Weight & Balance
Refer to Section 6 - Weight and Balance of the basic POH for current
weight and balance data.
Revision 01: 08-26-09
P/N 13772-135 7 of 16
Cirrus Design Section 9
SR22 Supplements
Section 7 - System Description
This airplane is equipped with a GFC 700 - a two axis (three axis
optional), fully digital, dual channel, fail passive Automatic Flight
Control System (AFCS). The system consists of the GFC 705 AFCS
Mode Controller, Flight Management System Keyboard, Roll Servo,
Pitch Servo, Yaw Servo (optional), Integrated Avionics Units, Pitch
Trim Adapter, Autopilot Disconnect Switch, Take Off / Go Around
Button, Electric Pitch-Trim and Roll-Trim Hat Switch. The GFC 700
AFCS with optional Yaw Damper can be divided into three primary
operating functions:
Flight Director - The Flight Director provides pitch and roll commands
to the AFCS system and displays them on the PFD. With the Flight
Director activated, the pilot can hand-fly the aircraft to follow the path
shown by the command bars. Flight Director operation takes place
within the #1 Integrated Avionics Unit and provides:
• Mode annunciation
• Vertical reference control
• Pitch and roll command calculation
• Pitch and roll command display
Autopilot - The Autopilot controls the aircraft pitch, roll, and if installed,
yaw attitudes, while following commands received from the Flight
Director. Autopilot operation occurs within the trim servos and
provides:
• Autopilot engagement and annunciation
• Autopilot command and control
• Auto-trim operation
• Manual electric trim
• Two axis airplane control (pitch and roll), including approaches
• Level (LVL) mode engagement command of zero roll and zero
vertical speed.
Optional Yaw Damper - Yaw Damper operation is provided by the yaw
servo and supplies:
• Yaw Damper engagement and annunciation
• Yaw axis airplane control
Revision 01: 08-26-09
8 of 16 P/N 13772-135
Section 9 Cirrus Design
Supplements SR22
Figure - 1
GFC 705
MODE CONTROLLER
PITCH TRIM
CARTRIDGE
INTEGRATED
INTEGRATED AVIONICS UNIT 2
AVIONICS UNIT 1
PFD MFD
PITCH TRIM
ADAPTER
YAW SERVO
(optional)
ROLL SERVO PITCH SERVO
SR22_FM09_2919
4-WAY
TRIM
GO-AROUND
SWITCH
A/P DISC
GFC 700 Automatic Flight Control System Schematic
Revision 01: 08-26-09
P/N 13772-135 9 of 16
Cirrus Design Section 9
SR22 Supplements
GFC 705 AFCS Mode Controller
The GFC 705 AFCS Mode Controller, located in the upper section of
the center console, provides primary control of autopilot modes and, if
installed, yaw damper engagement. A pitch wheel is included for
adjustment of pitch mode reference. 28 VDC for GFC 705 AFCS Mode
Controller operation is supplied through 5-amp KEYPADS / AP CTRL
circuit breaker on MAIN BUS 1. All Autopilot mode selection is
performed by using the mode select buttons and pitch wheel on the
controller. Available functions are as follows:
HDG - Heading Button
The HDG hold button selects/deselects the Heading Select mode.
Heading Select commands the flight director to follow the heading bug
(selected with the HDG knob).
NAV - Navigation Button
The NAV button selects/deselects the Navigation mode. This provides
lower gains for VOR enroute tracking and disables glideslope coupling
for localizer or back course approaches and glideslope coupling for
GPS approaches. This button is also used to couple to the GPS.
APR - Approach Button
The APR button selects the Approach mode. This provides higher
gains for VOR approach tracking and enables glideslope coupling for
ILS approaches and GPS coupling for LPV (Localizer Performance
with Vertical Guidance) and LNAV +V approaches.
AP - Autopilot Button
The AP button engages/disengages the autopilot.
LVL - Level Button
The LVL button engages the autopilot (within the Autopilot
　
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