S-Tec 3100 Digital Autopilot System – Nearly Complete 3-Axis Package w/ Servos | Tested, Tagged & Ready for Installation

S-Tec 3100 Digital System. If you are looking for a next-generation digital autopilot that delivers precision control, advanced safety features, and seamless avionics integration, the S-Tec 3100 is an exceptional solution.

This nearly complete 3-axis package was removed from a 2002 Piper Saratoga in fully functioning condition.

All components have been professionally tested, inspected, tagged, and verified to be free of defects.

For aircraft owners and avionics shops seeking a premium retrofit autopilot, the S-Tec 3100 remains one of general aviation’s most respected systems.

S-Tec 3100 Digital System

Advanced Digital Architecture for Superior Flight Control

The S-Tec 3100 features full digital architecture, delivering smoother response and greater command accuracy than legacy systems.

Its enhanced stability algorithms provide precise lateral and vertical guidance throughout all phases of flight.

Advanced safety features such as envelope protection add an extra layer of operational confidence.

Altitude hold, GPSS steering, and vertical navigation capabilities significantly reduce pilot workload.

The result is smoother IFR tracking, improved situational awareness, and consistent control authority in demanding environments.

S-Tec 3100 Digital System

Nearly Complete 3-Axis Configuration with Servos

This package includes the digital autopilot controller with rack, backshell, and connectors.

Controller Part Number: 01326-04-02-000.

Included servo assemblies consist of a Pitch Servo (PN 0108-P1), Roll Servo (PN 0106-R9), and Trim Servo (PN 0106-T8).

These components were removed together as an integrated system from an active aircraft.

S-Tec 3100 Digital System

Seamless Integration with Modern Avionics

The S-Tec 3100 integrates smoothly with many modern EFIS systems and GPS navigators.

Its compatibility makes it ideal for PA-32 platforms and other eligible aircraft installations.

Owners upgrading from older autopilots will immediately notice improved precision and smoother engagement.

Digital processing enhances responsiveness while reducing long-term maintenance concerns.

Key System Highlights

Nearly complete 3-axis digital autopilot package
Tested, defect-free, and professionally tagged components
Removed from a 2002 Piper Saratoga
Includes controller, rack, connectors, and three servos
Advanced vertical and lateral guidance modes
Envelope protection and modern digital reliability

Why Pilots and Shops Choose the S-Tec 3100

Pilots value its smooth operation and precise command authority during IFR operations.

Avionics shops appreciate its modern architecture and integration flexibility.

The system delivers measurable workload reduction during complex flight phases.

Its reputation for reliability makes it a preferred retrofit choice.

This S-Tec 3100 Digital Autopilot System represents a rare opportunity to acquire a high-performance, tag-verified automation package ready for installation.