AIRCRAFT FLIGHT
MANUAL
BRISTELL B23
Document No.: ADXC-73-001-AFM
Non-approved page
Revision: A2
7-43
Date of Issue: 15.04.2021
7.14.3 Garmin GMC 307-20 Autopilot control panel (optional)
The GMC 307-20 is part of the Garmin AUTOMATIC FLIGHT CONTROL
SYSTEMS (AFCS) and provides a user interface for the autopilot
function of the G3X system. Aileron and elevator control and trim are
interfaced by the AFCS. The rudder control is not interfaced. Especially
in high power climb configuration the pilot must correct the lateral control
for best performance.
Basic operations
Flight Director (FD) commands are displayed on the PFD, which
provides: Command Bars showing pitch/roll guidance, Vertical/lateral
mode selection and processing, Autopilot communication. With the flight
director active, the aircraft can be hand-flown to follow the path shown by
the Command Bars. For setting the FD, press the MENU Key of the
PFD1 twice to display the Main Menu, then touch Setup and Flight
Director.
Autopilot (AP) provides servo monitoring and automatic flight control in
response to flight director steering commands, Air Data and Attitude and
Heading Reference System (ADAHRS) attitude, rate information, and
airspeed.
The Autopilot is manually disengaged by pushing the disconnect button
on the autopilot unit, by pressing the autopilot disconnect button on the
Press to select current
Press to select current
