User Guide

Garmin G1000 AFCS Pilot’s Guide for Beechcraft A36/G36
190-00609-00 Rev. B
9-21
AUTOPILOT
FLIGHT CONTROL
Emergency Control Override
The GSM 85 servo mounts are equipped with slip-
clutches that are preset to certain values. This allows the
servos to be overridden in case of an emergency.
NOTE: Refer to the approved AFMS for specific
instructions regarding emergency procedures.
Flight Director - Autopilot Interface
The Flight Director function provides pitch and roll
commands to the GSA 81 servos, based upon the cur-
rently active Flight Director modes.
Pitch Axis
The pitch axis of the Autopilot uses pitch attitude rate
to stabilize the aircraft pitch attitude during aircraft up
-
sets or Flight Director maneuvers. The Flight Director
pitch commands are rate, acceleration, and attitude lim-
ited, summed with pitch rate, then sent to the pitch servo
motor.
Pitch Trim
The pitch servo measures the output effort (torque)
and provides this signal to the pitch trim servo. The pitch
trim servo commands the motor to reduce the average
pitch servo effort.
When the Autopilot is not engaged, the pitch trim
servo may be used to provide a Manual Electric Pitch
Trim function. This allows the pilot to operate trim from
a control-wheel switch in lieu of manually operating the
trim wheel. Trim speeds are scheduled with airspeed to
provide more consistent response.
Roll Axis
The roll axis of the Autopilot uses roll attitude rate to
stabilize the aircraft roll attitude during upsets or Flight
Director maneuvers. The Flight Director roll commands
are rate, acceleration, and attitude limited, summed with
roll rate, and sent to the roll servo motor.
Yaw Axis
The Yaw Damper uses yaw rate and roll attitude to
damp the natural Dutch roll response. It also uses lateral
acceleration to provide turn coordination. Yaw Damper
operation is independent of Autopilot engagement.