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    1. Commercial Aerospace

    Attitude heading reference system from Universal Avionics in final flight test

    Oct. 22, 2010
    ATLANTA, 22 Oct. 2010. The attitude heading reference system (AHRS) from Universal Avionics in Tucson, Ariz., is now in final flight test, company officials say. The stand-alone AHS-525 is a solid-state AHRS provides aircraft analog and digital pitch, roll, and heading measurements. The AHS-525 uses microelectromechanical systems (MEMS)-based technology and has a solid-state construction, that contains no internal moveable parts, increasing reliability over analog gyros.
    Posted by John McHale ATLANTA, 22 Oct. 2010. The attitude heading reference system (AHRS) from Universal Avionics in Tucson, Ariz., is now in final flight test, company officials say. The stand-alone AHS-525 is a solid-state AHRS provides aircraft analog and digital pitch, roll, and heading measurements. The AHS-525 uses microelectromechanical systems (MEMS)-based technology and its solid-state construction contains no internal moveable parts, increasing reliability over analog gyros. Universal Avionics designed the AHS-525 as a low-cost solution for next-generation flight decks and to replace increasingly difficult-to-maintain analog gyros. A Federal Aviation Administration (FAA) Technical Standard Order (TSO) is expected toward the end of next year. The system integrates with flight deck displays, flight control warning systems, flight management systems, weather radar, terrain awareness and warning system (TAWS), flight data recorder, and other avionics systems. When interfaced with Universal's Electronic Flight Information System, data display and control is managed directly through the EFI-890R flat panel displays, without the need for additional heading control panels that clutter the flight deck. System installation components will include the attitude heading reference unit (AHRU), configuration module, external remote magnetometer, and a mounting plate that is permanently affixed to the aircraft. The fixed mounting plate allows the unit to be removed for service and replaced without repeated realignment of the system. The unit features digital, analog, discrete, and synchro inputs and outputs to support a variety of interfaces on Part 23 and Part 25 aircraft. For more information, visit www.uasc.com.

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