Attitude Heading Reference Systems (AHRS)


  • Overview
  • Specifications
  • Features and Benefits
  • Applications

The AHRS500CA is the most widely used MEMS-based Attitude and Heading Reference System for avionics upgrades. The field-proven FAA-certified AHRS500CA is providing accurate and reliable attitude and heading information to instrument panels and autopilots in more than five hundred fixed-wing and rotary-wing aircraft. This standalone AHRS solution is designed for avionics retrofit and OEM aircraft applications. The AHRS500CA is available in several different configurations that provide the flexibility to accommodate various system interfaces, and typical mounting orientation and installation location requirements.

The AHRS500CA is designed for stand­alone operation, but may also be used with ACEINNA’s CRM500 remote magnetometer for installations requiring a wing or tail mount magnetometer.

Product Type Standalone
Footprint 12 x 12
Interface RS-232
Connector Style DSub-15
Heading Accuracy 1
Roll/Pitch Accuracy 0.5
Gyro Range 200
In-Run Stability 10
Non-Linearity 1
Bandwidth 25
Accel Range 10
In-Run Stability 1
Non-Linearity 1
Sensor Bandwidth 25
Mag Field Range 1
Mag Field Accuracy 0.005
  • Complete “Standalone” AHRS Solution
  • TSO C4c and C6d, DO-178B Level C
  • Meets TSO without External Aiding
  • Maintains High Stability during long “Orbiting” Maneuvers
  • Low Power < 4W
  • Comprehensive Built-in-Test
  • High Reliability MEMS Sensors
  • Optional CRM500 Remote Mag­netometer
  • Primary Flight Display Systems
  • Attitude Indicators
  • Flight Test Instrumentation

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