Collins Aerospace FDU-3000 Flux Detector Unit

The Collins Aerospace FDU-3000 is a remote-mounted, solid-state fluxgate sensor engineered to measure the horizontal component of the Earth's magnetic field. Positioned externally near the wingtip or tail cone to isolate it from local cockpit electromagnetic interference, the unit determines precise magnetic heading profiles. It processes these magnetic variances and streams raw orientation telemetry directly to downstream attitude and heading reference computers.

Description

This unit has been bench tested by an FAA certified repair station and it comes with an 8130 single release dated 7/21/2026.

Key Technical Capabilities
  • Two-Axis Fluxgate Architecture: Houses a high-reliability, two-axis magnetic sensor matrix. The internal circuitry yields outputs directly proportional to the sine and cosine of the aircraft’s magnetic heading angle for stable tracking.
  • System Reference Interfacing: Formulated to supply raw magnetic data streams directly to the Collins AHC-3000 Attitude Heading Reference System (AHRS). The flight computer processes this signal to stabilize horizontal situation indicators (HSI) and primary flight displays.
  • Remote Interference Isolation: Designed strictly for remote airframe installation—such as deep within wingtip trailing edges or vertical stabilizer caps. This physical separation keeps the internal flux gates safe from deviations caused by high-draw cockpit avionics and electrical wiring.
  • Autopilot Coordination Support: Provides continuous heading data required by primary flight computers and autopilot guidance systems. This stream prevents drift during prolonged cruise segments and maintains high-resolution tracking across automated navigation legs. 
  • Aviation Grade Environmental Spec: Encased within a compact, sealed aluminum housing built to survive wide operating thermal shifts and vibration forces common to unpressurized structural wing zones.

Additional information

Part Number

822-1193-001

Serial Number

26657

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