The Collins Aerospace AHS-4000 Attitude and Heading Reference System (AHRS) features a distinctive solid-state design in a small, lightweight package. The embedded low-power fiber-optic gyro and triple-axis MEMS accelerometers ensure high reliability and low power consumption. Continuous monitoring of all functions and internal diagnostics gives you a high-integrity system. You can operate the AHS-4000 in several modes to provide your aircraft with the most accurate navigation data based on available inputs. After self-aligning, the system operates like an Inertial Reference System, providing free inertial navigation position and velocity outputs along with the basic AHRS functions. For higher precision calculations, the AHS-4000 can use GPS inputs.

  • Rugged solid-state design: Fiber optic gyro and triple axis MEMS for self-aligning without using magnetic sensors.
  • Multiple modes of operation: Standard magnetically augmented ARINC 705 AHRS, GPS-aided or unaided free inertial.
  • ARINC 429 capability: Standard ARINC 429 data I/O format.
  • Optional synchro input interface: The attitude and heading reference input data can be provided by an analog synchro interface.
  • Enhanced fault isolation: Reduces trouble shooting through the use of internal diagnostics and nonvolatile memory.
  • Reduced cost of ownership: Through increased availability of the system.

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