Sigma-Tek 5000B-36 Air Driven Attitude Indicator

This part number designates a standard, 3-1/8 inch panel-mounted mechanical attitude indicator manufactured by Sigma-Tek. It serves as a primary flight instrument to give the pilot a direct, real-time visual reference of the aircraft's pitch and roll attitudes relative to the earth's horizon.  

Description

This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 5/7/2026.

Key Technical Capabilities
  • Pneumatic Gyroscopic Performance: Relies entirely on the aircraft’s pneumatic system to spin the internal high-mass brass rotor. It operates independently of the electrical system, maintaining full operational status during complete alternator or battery failures.
  • Natural Horizon Interpretation: Employs a moving background horizon mask against a stationary reference airplane. This matches the pilot’s visual perception of the aircraft’s wings in relation to the natural horizon during VFR flight. 
  • Turn Coordinator Replacement: FAA certified under standard TSO guidelines. When equipped with an optional lower inclinometer (slip/skid ball), this instrument can be used as an approved configuration to replace a standard turn coordinator on the flight panel. 
  • High-Altitude Rating: Certified to function reliably in environmental envelopes spanning from sea level up to an operational ceiling of 40,000 feet.

Additional information

Part Number

23-501-06-16

Serial Number

T95043N

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