Stec 50 Autopilot Installation Manual
Call 1-800-447-3408 for Ordering and Installation Pricing
The System 40 is an economical panel-mounted mode selector/programmer/annunciator autopilot with 3' standard mounting.
This manual is to acquaint the pilot with the features and functions of the System 50 Two‐Axis Autopilot and to provide operating instructions for the system when installed in the PA‐28 aircraft. The aircraft must be operated within the limitations herein provided when the autopilot is in use. DFC90 is a slide in replacement for STEC-55x. STEC30/50/60-2/65 series autopilots may also be replaced by a DFC90 under these STCs with additional installation changes. CERTIFICATIONS – Avidyne Entegra PFD or the Aspen EFD1000 Pro PFD in the Cirrus SR20 and SR22.
Features- 3” ATI panel-mounted
- Internal lighting
- Roll axis computer three ATI case-contained
- Heading preselect and hold**
- Turn command in “STB” roll stabilization mode
- Low and high gain VOR/LOC/GPS tracking (track only)
- Back course (REV) mode
- Control wheel altitude hold select
- GPSS (GPS. Steering) converter
- DG / HSI compatible
- Manual electric trim (where STC’d)
- Yaw Damper
Functions- Ready - Indicates A/P ready status and reliable gyro speed.
- Multi-function control knob - Turn command, or push to select heading hold or roll stabilization mode
- Roll stabilization mode - Holds wing level and enables command knob for A/P commanded turns up to 90% standard rate.
- NAV/LOC/GPS tracking -Dual gain NAV for en route tracking and smooth station passage.
- APR for GPS en route, and LOC, VOR & GPS approaches
- REV for backcourse approaches
- Mode selector buttons
- Control Wheel Altitude Engage / Disengage
- Manual Electric Trim
- GPSS Converter
- Additional Labor Necessary to Remove Existing Autopilot System
- Heading System Not Included
* Install Price May Vary By Aircraft
About S-TecIn general aviation singles, light twins, and turboprops, S-TEC's rate based autopilot systems have a number of significant advantages over attitude based systems. You can expect safety, reliability, and performance whenever your autopilot is engage. S-TEC also believes in a building block philosophy which allows installation of an autopilot today as a foundation, and upgrading to a system with more features and functions at a later date. All S-TEC autopilot systems use common hardware, servos, and sensors throughout the product line which offers you significant advantages in serviceability, reliability, and overall cost. A multitude of autopilots are available from a simple altitude hold only to a full two axis autopilot with glide slope capture, vertical speed control, and dual mode intercept.
Manufacturer does not allow mail-order sales of Autopilots/Flight guidance systems to owners of Certified Aircraft. S-Tec Autopilots must be installed by an authorized S-Tec dealer, unless installed in a home-built aircraft. Avionics installations require special knowledge, skills, test equipment and tools. Call our Avionics Sales Staff for an installed price.
Call 1-800-447-3408 for Ordering and Installation Pricing
- Lighted 3” Turn Coordinator
- 3 ATI Panel Mounted
- Turn Command in “STB” Stabilizer Mode
- HDG Preselect & Hold (HDG SYSTEM NOT INCLUDED)
- Altitude Hold
- VOR/LOC/REV/GPS Tracking
- Pitch Trim Annunciation
- Control Wheel Altitude Engage / Disengage
- Manual Electric Trim
- GPSS Converter
The SYSTEM 50 Autopilot provides all of the features of System 40, but with the additional feature of altitude hold. The system Programmer/Annunciator/Computer unit utilizes the same roll axis circuitry as System 40, plus an accelerometer for short-term pitch axis stabilization, and automatic interruption of altitude hold in severe turbulence. Pitch axis signal inputs are derived from a reliable solid state absolute pressure transducer and the accelerometer, not the artificial horizon gyro. This provides precise, instantaneous altitude and pitch control data and is independent of the aircraft vacuum system.SYSTEM 50 consists of the Programmer/Computer, Turn Coordinator, Roll and Pitch Servos, and Absolute Pressure Transducer. Includes mounting hardware and harness. Optional Directional Gyro priced separately. System 50 is available for 13.75 or 27.5 Vdc operation. FAA TSO approved.
- Additional Labor Necessary to Remove Existing Autopilot System
- Heading System Not Included
- Add GPSS $2075.00 Installed
* Install Price May Vary By Aircraft
Stec 50 Autopilot Manual
About S-Tec
Stec 50 Autopilot Installation Manual Online
In general aviation singles, light twins, and turboprops, S-TEC's rate based autopilot systems have a number of significant advantages over attitude based systems. You can expect safety, reliability, and performance whenever your autopilot is engage. S-TEC also believes in a building block philosophy which allows installation of an autopilot today as a foundation, and upgrading to a system with more features and functions at a later date. All S-TEC autopilot systems use common hardware, servos, and sensors throughout the product line which offers you significant advantages in serviceability, reliability, and overall cost. A multitude of autopilots are available from a simple altitude hold only to a full two axis autopilot with glide slope capture, vertical speed control, and dual mode intercept.