The Athena 611 from Collins Aerospace is a fully integrated inertial navigation system (INS), global positioning system (GPS), and an air data, attitude and heading reference system (ADAHRS). The unit incorporates a navigation grade IMU and an embedded pressure altimeter; the data from these sensors is used in the INS/GPS Kalman filter solution. The Athena 611 also gives you an option to accept external static pressure data. It houses a central processing unit (CPU), air data transducers, an embedded C/A GPS receiver and peripheral input/outputs to function as a complete ADAHRS.

The Athena 611 system consists of two cable-connected units: the inertial measurement unit (IMU) and the Navigation and Communications Unit (NCU). The IMU used is the Honeywell HG9900.

  • Assesses accurate roll, pitch and heading in dynamic maneuvers and sustained turns
  • Provides full air data measurements including AoA and sideslip
  • Tolerant to GPS outage
  • Offers optional software module that gives you Collins Aerospace’s full suite of advanced and flight-proven functions, including autopilot, guidance, navigation and mission management

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