PFD MFD Mode controller Go-around switch Integrated avionics unit 1 Integrated avionics unit 2 A/P disc 4 way trim Pitch trim adapter Pitch trim cartridge Roll servo Pitch servo Yaw servo (optional) AHRS Figure 10-113.  Automatic flight control system (AFCS) of a Garmin G1000 glass cockpit instrument system for a general aviation aircraft.  10-67