Cirrus DESIGN SR22 Pilot Operating Handbook page 458

Section 9
Supplements
Section 7 - System Description
The airplane is equipped with an S-Tec System Fifty Five SR two-axis
autopilot. The system consists of the Programmer / Computer, Flight
Management
Transducer, Integrated Avionics Unit #2, Pitch Servo, Roll and Pitch
Trim Cartridges, Autopilot Disconnect Switch, Electric Pitch-Trim and
Roll-Trim Hat Switch, and Annunciation System.
The autopilot controls the aircraft pitch and roll attitudes. Autopilot
operation occurs within the Programmer/Computer installed in the
upper section of the center console 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
12 of 20
System Keyboard, Turn Coordinator,
Revision 01: 01-06-10
Cirrus Design
SR22 / SR22T
Altitude
P/N 13772-141