Specifications

7-90 Information Manual
Section 7 Cirrus Design
Airplane Description SR20
• Select terrain features, such as airports and special use
airspace and select color enhanced terrain.
• Select and view trip data from GPS.
Power for the MCU is 28 VDC supplied through the 5-amp MFD circuit
breaker on the Avionics Non-Essential Bus.
• Note •
Serials 1005 through 1472 before MFD software version 530-
00162-000 Revision 02; Do not use the Garmin 420 or 430
Navigators to display Stormscope lightning data when the
Avidyne MFD’s Lightning mode is set to either DATALINK or
OFF. For the Garmin 420 or 430 Navigators to accurately
display lightning strikes, the Lightning mode selected on the
MFD’s MAP Page, must be set to either STRIKE or CELL.
Refer to Avidyne FlightMax EX5000C Pilot’s Guide, for a more
complete description of the MFD, its operating modes, and additional
detailed operating procedures.
Autopilot
Avionics Configuration 2.0:
The standard SR20 is equipped with an S-TEC System Twenty
Autopilot. This single-axis autopilot system is a rate-based system,
deriving roll axis control inputs from its electric turn coordinator. The
programmer, computer, annunciators, and servo amplifier are
contained entirely within the turn coordinator case. Pilot inputs to the
autopilot are made through the multi-function control knob at the upper
left corner of the turn coordinator. The control knob provides mode
selection, disengage, and turn command functions. A button on each
control yoke handle may be used to disengage the autopilot. The turn
coordinator instrument annunciates system modes. The autopilot
drives the aileron trim motor and spring cartridge to control airplane
roll. The autopilot operates on 28 VDC supplied through the 5-amp
AUTOPILOT circuit breaker on the Essential Bus.
March 2010