Inertial Measurement and Airspeed

Archangel Systems manufactures hardware for inertial, magnetic heading, and air data solutions. Our Inertial measurement units (IMUs) use MEMS accelerometers and gyroscopes to measure the accelerations and roll, pitch, yaw rates that correspond to changes in the aircraft attitude. Whether yours is a light helicopter, a Mach 1.8 fighter, or in between, Archangel has AHRS and ADAHRS for your flight regime and certification requirements. Contact us to explore the best option for your application.


Archangel Products


Air Data Attitude Heading Reference System (ADAHRS)
The AHR150A and AHR300A ADAHRS are Archangel’s flagship products. Both carry necessary TSO approvals with DO-178 DAL A software certifications. For most fixed and rotary wing customers, the AHR150A checks all boxes. The ‘300A is the product of choice for more agile aircraft like turboprop military trainers.


Air Data Attitude Heading Reference System (ADAHRS)
Avionics for supersonic aircraft are characterized by high price, large form factors, and excessive weight. The AHR500 ADAHRS is unique – a compact supersonic ADAHRS designed for airspeeds up to Mach 1.8. It finds favor in fighter upgrades and the burgeoning commercial supersonic market.


Attitude Heading Reference System (AHRS)
Some projects require only an AHRS. One scenario is replacing DG/VG sets while retaining the air data computer. In such cases, Archangel recommends the AHR75 AHRS. Qualified for part 23, 25, 27, and 29 class aircraft with FAA TSO C201, the AHR75 AHRS is suitable for all aircraft and certification levels.


Attitude Heading Reference Systems (AHRS)
The AHR50 is valuable to the UAM/eVTOL market due to its DO-178 DAL A certification, TSO approvals and low weight – less than 80 grams. More importantly, output data accuracy and latency meet flight control requirements. The customer embeds the AHR50 in a larger housing, typically the flight controller, that meets their DO-160 environmental requirements.