Cirrus SR2x

ADDITIONAL FEATURES
SYSTEM
OVERVIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO PANEL
& CNS
FLIGHT
MANAGEMENT
HAZARD
AVOIDANCE
AFCS
ADDITIONAL
FEATURES
APPENDICES
8.14 ELECTRONIC STABILITY AND PROTECTION (ESP )
The optional Garmin Electronic Stability and Protection (ESP ) system is available only when the Garmin AFCS
is installed. This system is designed to provide automatic control inputs to discourage aircraft operation outside
the normal flight envelope. Garmin ESP works to maintain the desired pitch, roll, and airspeed operating
envelope by automatically engaging one or more servos when the aircraft is near a defined pitch, roll, and/or
airspeed operating limit. While ESP utilizes the same sensors, processors, and actuators as the Garmin AFCS
autopilot, it is a separate function. When the Garmin AFCS autopilot is engaged and/or the aircraft is at or below
200 feet AGL, the ESP system will not operate.
ESP engages when the aircraft exceeds one or more conditions (pitch, roll, and airspeed) beyond the normal
flight parameters. Enhanced stability for each condition is provided by applying a force to the appropriate control
surface to return the aircraft to the normal flight envelope. This is perceived by the pilot as resistance to control
movement in the undesired direction when the aircraft approaches a steep attitude or high airspeed.
As the aircraft deviates further from the normal attitude and/or airspeed range, the force increases (up to an
established maximum) to encourage control movement in the direction necessary to return to the normal attitude
and/or airspeed range. Except in the case of high airspeed, when maximum force is reached, force remains constant
up to the maximum engagement limit. Above the maximum engagement limit, forces are no longer applied. There
is no maximum engagement related to a high airspeed condition.
The pilot can interrupt ESP by pressing and holding the Autopilot Disconnect (AP DISC) switch. Upon releasing
the AP DISC switch, ESP force will again be applied, provided aircraft roll attitude is within engagement limits.
ESP can also be overridden by overpowering the servo’s mechanical torque limit.
ESP can be enabled or disabled on the AUX-SYSTEM SETUP 2 Page on the MFD.
To enable or disable ESP :
1) Turn the large FMS Knob to select the AUX Page Group.
2) Turn the small FMS Knob to select the System Setup Page.
3) If necessary, select the SETUP 2 Softkey to display the AUX-SYSTEM SETUP 2 Page. If the AUX-SYSTEM SETUP 2
is already displayed, proceed to step 4.
4) Press the FMS Knob to activate the cursor.
5) Turn the large FMS Knob to place the cursor in the STABILITY & PROTECTION field.
6) Turn the small FMS Knob to select ‘ENABLE’ or ‘DISABLE’.
7) Press the FMS Knob to remove the cursor.
ESP is automatically enabled on system power up.
INDEX
654
Pilot’s Guide for the Cirrus SR2x with Cirrus Perspective by Garmin
190-00820-11 Rev. A