Archangel’s flagship aviation products are the AHR150A and AHR300A ADAHRS.

With FOG-equivalent attitude accuracy, these products provide affordable, reliable inertial data for both fixed- and rotary-wing platforms. Both of these products have been proven as excellent replacements of legacy DGVG sets or antiquated AHRS/ADAHRS to modernize your aircraft.

Contact us today to discuss your unique needs and concerns.

The AHR150A system consist of two boxes. The AHR150A-1 Inertial Sensing Unit (ISU) is the rate, acceleration, and air data sensing component while the AHR150A-2 Magnetic Sensing Unit (MSU) is a remote 3 axis magnetic field sensing device. Together, these two units provide a powerful and cost-effective alternative to Fiber Optic Gyro systems. Both the AHR150A and the AHR300A offer similar features and certifications. The primary difference is the rate limits of ±128°/second for the ‘150A and  ±256°/second for the ‘300A Both products include multiple high- and low-speed ARINC ports, allowing them to integrate seamlessly into any modern avionics suite.        


  • Angle rate limit options of ±128°/s, ±256°/s
  • Low latency for fly-by-wire aircraft
  • User-programmable lever arms and orientation
  • Multiple pitot and static source error correction tables
  • Mil Spec 38999 filtered connector


  • DO-178B Level A software (all functions)
  • FAA TSO C4c, C5f, C6e, C88b, and C106
  • Approved for part 23, 25, 27, and 29
  • DO-160E Environmental certifications including EMI, EMS, and HIRF