Uses traditional CDI/VOR/LOC deviation signals via standard analog inputs. HSI and Flight Display Integration Heading Bug: Connects to the
Ensure at least 1 inch of clearance behind the unit for wire harness routing. 2. Servo Installation The servos are the muscles of the system.
: This system is rate-based and requires a compatible S-TEC turn coordinator to function as the primary sensor. 🛠️ Component Overview The typical installation includes:
The S-TEC System 55X is one of the most reliable and widely installed aftermarket autopilots in General Aviation (GA). Navigating its installation requires strict adherence to Federal Aviation Administration (FAA) regulations, precise mechanical calibration, and meticulous electrical wiring. S-tec 55x Installation Manual
Confirm that a "Left" command on the programmer actually moves the ailerons to initiate a left turn.
Bridle cables must exit the servo capstan parallel to the main control cables to prevent chafing and premature wear.
The S-TEC 55X uses a high-density, multi-pin d-subminiature connector architecture. Precision crimping and shielding shield the system from electromagnetic interference (EMI). Servo Installation The servos are the muscles of the system
Wiring the S-TEC 55X requires clean pin crimping, proper shielding, and strategic routing to avoid Electro-Magnetic Interference (EMI). Power and Grounding
Mounted on the forward cabin bulkhead or radio rack.
heading error output from an HSI or Electronic Flight Instrument System (EFIS) like the Garmin G5 or GI 275. ensuring smooth tracking and altitude hold
Upon completion of the physical and electrical installation, ground and flight testing are required to verify the STC conditions are met.
Before loosening a single screw on the aircraft, you must verify compliance and gather the necessary legal and technical documentation. Supplemental Type Certificate (STC) Verification
Perform a flight test to calibrate the autopilot’s response to flight dynamics, ensuring smooth tracking and altitude hold, and checking for appropriate mode transitions. 5. Important Notes on Revisions and Kits
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