AHR500
AHR500
The AHR500 ADAHRS (Air Data Attitude Heading Reference System) by Archangel Systems is engineered for supersonic flight, offering a balance of cost, performance, and safety. It is developed with DO-178B Level A software on redundant processors to ensure data integrity and has undergone extensive DO-160E and MIL-STD testing for environmental robustness. The system is compatible with modern avionics through multiple ARINC 429 ports and is exportable under ECCN 7A994 without ITAR restrictions, making it suitable for both domestic and foreign military sales.
Features
- Tested in F-5 fighter flights against RLG inertial systems.
- Angle rate limits: ±420 °/s (roll and pitch), ±220 °/s (yaw).
- Acceleration limit: ±10 g.
- Calibrated for 55,000 feet altitude and 800 knots airspeed (1.8 Mach).
- Directional Gyro compliant with TSO C5f.
- Equipped with Mil Spec 38999 filtered connectors.
Qualifications
- Developed per DO-178B Level A software procedures.
- DO-160E environmental certifications including EMI, EMC, and HIRF.
- MIL-STD-810F certifications for fluids, vibration, shock, gunfire, and temperature.
- MIL-STD-704A for voltage spikes.
Exporting
- Classified under ECCN 7A994 by the US Department of Commerce, allowing global export without ITAR restrictions.
Technical Specifications
AHR500 ISU Dimensions/Weight
- Size: 4.375” x 4.375” x 6.25”
- Weight: 3.1 lbs
AHR150A-2 MSU Dimensions/Weight
- Size: 0.8125” x 2.625” x 3.625”
- Weight: 0.6 lbs
Environment/Power
- Operating Temperature: -40°C to +70°C
- Non-operating Temperature: -55°C to +125°C
- Altitude: -1,500 to 55,000 ft
- Power: Dual 16–36 VDC, 0.7 A @ 28 V nominal
Inputs/Outputs
- ARINC 429: 4 Hi-speed, 4 Lo-speed transmit; 1 Hi-speed, 1 Lo-speed receive
- ICAO Altitude: 13-bit Gilham code
- Discrete Outputs: Master fault
- Sensor Inputs: OAT/TAT resistive, Angle of Attack resistive
- Discrete Inputs: Unit ID, Orientation, CW/CCW slewing, Heading mode select, SSEC/PSEC table select
Performance Ranges
- Rates: ±420°/second in pitch and roll, ±220°/second in yaw
- Accelerations: ±10 g
- Airspeed: 2.0 Mach
Data Accuracy
- Pitch, Roll: ±1.0°, 3 σ
- Heading: ±2.0°, 3 σ
- Body Rates: 0.2% of input rate, 0.1% non-linearity
Certifications
- DO-160E and MIL-STD environmental categories
- Software Development: DO-178B DAL A
- MTBF (35°C): Aic 10,000 flight hrs, Auc 6500 flight hrs, Auf 4500 flight hrs
For more information, contact Archangel Systems at [email protected] or visit www.archangel.com.
Catalog excerpts
AHR500 Air Data Attitude Heading Reference System The AHR500 ADAHRS (Air Data Attitude Heading Reference System) from Archangel Systems is designed for the extremes of supersonic flight while setting a new precedent for price, performance, and safety. Software was developed per DO-178B Level A (Mission Critical) on redundant processors to ensure data validity. Functionality across environments is assured through extensive DO-160E and MIL-STD tests. And, with multiple high- and low-speed ARINC 429 ports, the AHR500 is compatible with modern avionics architectures. Export of the AHR500 is controlled by the US Department of Commerce per ECCN 7A994 – no ITAR restrictions. This makes the AHR500 ideal for both domestic and FMS programs. FEATURES Vetted in F-5 fighter test flights against RLG inertial systems Angle rate limit of ±420 °/s (roll and pitch) and ±220 °/s (yaw) Acceleration limit of ±10 g Air data calibrated for 55,000 feet altitude and 800 knots indicated air speed (1.8 Mach) Directional Gyro is TSO C5f compliant Mil Spec 38999 filtered connectors Developed per DO-178B Level A software procedures DO-160E environmental certifications including EMI, EMC, and HIRF MIL-STD-810F Fluids, Vibration, Shock, Gunfire, Temperature (short duration at 83°C) MIL-STD-704A Voltage Spikes EXPORTING Export globally per US Department of Commerce classification ECCN 7A994
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AHR500 Air Data Attitude Heading Reference System With military budgets shrinking, new cost-saving strategies that preserve aircraft and crew safety are more critical than ever. With its combined MEMS sensors and proprietary blending algorithms, the AHR500 supersonic ADAHRS meets these needs and provides Environment/Power Temperature Altitude Dual Power -40°C to +70°C operating -55°C to +125°C non-operating 83°C operation survivability -1,500 to 55,000 ft pressure altitude 16–36 VDC, 0.7 A @ 28 V nominal Comparing the technical specifications below against legacy military avionics, you will find...
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