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Wednesday, May 25, 2016

FAA Grants Universal Avionics TSO for AHRS

Juliet Van Wagenen

Universal Avionics AHS-525 Attitude Heading Reference System (AHRS)
Universal Avionics AHS-525 Attitude Heading Reference System (AHRS). Photo: Universal Avionics

[Avionics Today 05-25-2016] The FAA has granted Technical Standard Order (TSO) authorization for Universal Avionics AHS-525 Attitude Heading Reference System (AHRS). The approval allows the company to manufacture and bring to market the AHS-525, which aims to replace legacy mechanical Vertical Gyroscopes (VGs) and Directional Gyroscope (DGs) in Part 23 and Part 25 fixed-wing aircraft, and Part 27 and Part 29 rotorcraft.

The AHS-525 contains multiple rate gyros to measure angular aircraft motion in the pitch, roll and yaw axes, and several accelerometers to measure aircraft linear motion along the longitudinal, lateral and vertical axes of the aircraft.

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