Advanced gyro compass for polar vessels

The Audax is one of the two vessels equipped with the advanced gyro compass system from Raytheon Anschütz

Navigation system manufacturer Raytheon Anschütz says it has supplied an advanced gyro compass system for two 25,000dwt polar-class heavy-transport vessels for operation north of 70° latitude.

The vessels, Audax and Pugnax, were built at Guangzhou Shipyard International (GSI) in China for Red Box Energy Services, a Dutch company specialised in high-value offshore and onshore energy services. Built in accordance with DNV NAUT-AW and highest ice-class notations, the vessels use state-of-the-art Anschütz instrumentation that enable year-round operation in the most challenging polar conditions – including temperatures below  -40°C. The vessels have been deployed to transport modules for the Yamal LNG project in Russia.
Raytheon Anschütz says it has supplied the high-tech vessels with a comprehensive dual gyro compass system complete with redundancy in distribution and well as a steering gear control system. This includes the top-of-the-range NP 5500 fully adaptive autopilot for maximum precision in heading and track control steering, according to Raytheon Anschütz.
The gyro system integrates two maintenance-free, strap-down gyro compasses, which use hemispherical resonator gyros for measuring angular rates. The new technology offers superior lifetime performance and outruns the long-term stability of traditional fibre-optical gyros, the company says.

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