Electronic Stability & Protection (Esp-X) - Garmin G3X Touch Pilot's Manual

Additional Features
8.12 ELECTRONIC STABILITY & PROTECTION
(ESP-X)
WARNING: Do not assume ESP-X will provide stability protection in all
circumstances. There are in-flight situations that can exceed the capabilities
of ESP-X technology.
NOTE: Third party autopilot installations are not supported for ESP-X. ESP-X
requires Garmin GSA 28 servos.
Electronic Stability and Protection (ESP) is an optional feature that is intended to
monitor the aircraft and provide control input feedback when necessary to discourage
operating the aircraft at potentially unsafe attitudes and/or airspeeds. This feature will
only function when the aircraft is above 200 feet AGL and the autopilot is not engaged.
When selected, ESP engages automatically when the aircraft approaches or exceeds
one or more predetermined airspeed or attitude limitations. Stability protection
for each flight axis is provided by the autopilot servos, which apply force to the
appropriate control surface(s) to discourage pilot control inputs that would cause the
aircraft to exceed the normal or "protected" flight envelope. This is perceived by the
pilot as resistance to control movement in the undesired direction when the aircraft
approaches a steep attitude, and/or the airspeed is below the minimum or above the
maximum configured airspeed.
As the aircraft deviates further from the normal attitude and/or airspeed, the
force increases proportionally (up to an established maximum) to encourage control
movement in the direction necessary to return to the normal attitude and/or airspeed
range.
When ESP has been engaged for more than fifteen seconds (cumulative; not
necessarily consecutive seconds) of a 30-second interval, the autopilot can be configured
to engage with the flight director in Level Mode, bringing the aircraft into level flight.
An aural "Autopilot" alert is played and the flight director mode annunciation will
indicate 'LVL' for vertical and lateral modes.
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Garmin G3X Touch Pilot's Guide 190-01754-00 Rev. E