System 20 Auto Pilot Features and Functions

System 20/30 Auto Pilot	Features of the Auto Pilot
	Multi-Function Control Knob. Turn command and push for mode select (push and hold for A/P disconnect). Ready. Indicates A/P ready status and reliable gyro speed. Roll Stabilization Mode. Holds wings level and activates turn command knob for A/P commanded turns up to 90% standard rate. Heading Preselect and Hold. * VOR/LOC/GPS tracking, dual-LO for en route VOR tracking and smooth station passage. Hi for GPS en route and LOC, VOR and GPS approaches. Altitude Hold. * Pitch Trim Annunciator. Advises if up and down elevator trim required when altitude hold engaged. * * System Thirty (30) Features and Functions

System 20/30 Auto Pilot

Features of the Auto Pilot

Multi-Function Control Knob. Turn command and push for mode select (push and hold for A/P disconnect).
Ready. Indicates A/P ready status and reliable gyro speed.
Roll Stabilization Mode. Holds wings level and activates turn command knob for A/P commanded turns up to 90% standard rate.
Heading Preselect and Hold. *
VOR/LOC/GPS tracking, dual-LO for en route VOR tracking and smooth station passage. Hi for GPS en route and LOC, VOR and GPS approaches.
Altitude Hold. *
Pitch Trim Annunciator. Advises if up and down elevator trim required when altitude hold engaged. *

* System Thirty (30) Features and Functions

S-TEC Single Axis Auto Pilot Comparisions

Product Comparison	System 20	System 40	System 60-1
Roll Features and Functions
Turn Coordinator		standard	standard
Turn Coordinator / Roll Computer	standard
Turn Command Knob	standard	standard
Heading Select and Hold (requires heading system)	standard	standard	standard
Navigation / Approach Tracker (track only)	standard	standard
Navigation / Approach Coupler (intercept and track)			standard
Backcourse Mode		standard	standard
Dual Mode Intercept HDG / NAV			standard
Course Deviation / NAV Flag Warning			standard
Navigation / Approach Gain Select	standard	standard
Navigation / Approach Gain Automatic			standard
GPSS	optional	optional	optional
Pitch Features and Functions
Altitude Hold
Altitude Trim
Trim Annunciation
Vertical Speed Command
Digital Vertical Speed Command
Glideslope Coupler
Altitude Selector / Alerter
Manual Electric Trim (where STC'd)	optional	optional	optional
Automatic Electric Trim (where STC'd)
Other Features and Functions
Turn Coordinator / Mode Selector	standard
3 ATI Panel Mounted Mode Selector		standard	standard
Radio Stack Mounted Mode Selector / Computer
Pedestal Mount Mode Selector
Control Wheel Mode Select	optional
Control Wheel Steering
Remote Computer			standard
Remote Annunciator
Yaw Damper (where STC'd)	optional	optional	optional