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.


  • 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 HIR


The AHR75 AHRS is designed specifically to provide high levels of performance at a low cost. In creating the AHR75, Archangel Systems uses a three-part design philosophy: technology, certifications, and ease of use. First, the AHR75 uses technology including MEMS sensors, Archangel’s AHR150A-2 Magnetic Sensing Unit, and sophisticated blending algorithms to deliver “FOG-grade” performance at greatly reduced size, weight, and power. Second, the unit has a comprehensive list of certifications including FAA approval for Part 23, 25, 27, and 29 installations, DO-178C Level A (Mission Critical) software, and complete DO160E protections. Third, the AHR75 is easy to install and use. With multiple high- and low-speed ARINC 429 ports, the AHR75 directly integrates into modern architecture and functions seamlessly with Archangel’s AHR150A-2 MSU.

AFC001AC (Automatic Flight Controller Alternating Current)

The AFC001AC receives data over a Hi-Speed ARINC 429 Buss and converts Roll, Pitch and Heading to standard ARINC 407 signals to drive a variety of autopilots, analog indicators and all the functional avionics that require Attitude and Heading ARINC 407 data.

AFC001AC supports Legacy 407 indicator using synchro DG/VGs. This eliminates costly DG/VG repairs and downtime while providing increased performance at a cost-competitive price

Combining the AFC001AC with the Archangel flagship ADAHRS AHR150A will create a seamless and low-cost Air Data and Attitude solution at low-size, weight, and power.


Two developments will dominate the next era of aviation: Unmanned Aerial Vehicles (UAV) and Urban Air Mobility (UAM), deeper subsystem integrations have become a substantial solution for reducing the architecture complexity and budget concerns of the upcoming aviation technology. Archangel systems AHR50 AHRS (Attitude Heading Reference System) meets and exceeds modern aviation era requirements by leveraging existing IP into a compact form factor, the AHR50 is ideally suited for certified Unmanned Aerial Systems (UAS) in the national airspace.
Qualifications include DO-178B Level A certified software (Mission Critical), TSO C4c and C6e approval, and DO-160E certifications for altitude, temperature, shock, 100 Hz vibration rejection, humidity, and fungus.

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FAA Class I, II, III & IV with limited avionics & accessories -- Certification #VE1R555K
EASA -- Certification #145-4077
• Quality Management System for AS9110C and ISO 9001:2015 -- Certification #132560.00