-- Lighted 3 Turn Coordinator / Roll Axis Computer -- Remote Pitch Axis Computer -- Turn Command in ST Stabilizer Mode -- Heading Preselect and Hold (Heading System is Optional) -- Altitude Hold with Remote Engage / Disengage -- Low and High Gain VOR/LOC/GPS Tracking -- Pitch Trim Annunciation AVAILABLE OPTIONS - Control Wheel Mode Selection - DG or HSI - Manual Electric Trim - GPSS Roll Steering Converter