The AN/WSN-7B Marine Gyrocompass/Navigator

Terry Tucker and Emanuel Levinson

Abstract:	Litton Marine Systems has developed a marine gyrocompass/navigator for the U.S. Navy which has been designated the AN/WSN-7B. It is a more reliable state-of-the-art strapdown, ring-laser gyro, based replacement for the WSN-2 gyrocompass, with the added requirement of being an inertial navigator with an accuracy of 1 nm in 24 hours. This paper provides a detailed description of the AN/WSN-7B, delineates the key features, and presents the latest laboratory and at-sea test results. These results show that the 1 nm in 24 hours navigation requirement as well as the velocity and attitude specifications are satisfied.
Published in:	Proceedings of the 2000 National Technical Meeting of The Institute of Navigation January 26 - 28, 2000 Pacific Hotel Disneyland Anaheim, CA
Pages:	348 - 357
Cite this article:	Tucker, Terry, Levinson, Emanuel, "The AN/WSN-7B Marine Gyrocompass/Navigator," Proceedings of the 2000 National Technical Meeting of The Institute of Navigation, Anaheim, CA, January 2000, pp. 348-357.
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