Ring Laser Gyro Marine INS

Clinton C. Remuzzi

Abstract:	Litton's Guidance and Control Systems Division has developed a ring laser gyro (RLG) marine inertial navigation system (INS) which provides improved performance and reliability compared to the-current Navy standard which uses a gimbaled inertial measuring unit (IMU) with gas bearing gyros. Since Litton has already provided over 1000 Navy -standard systems, the new RLG IMU was designed to be completely -compatible with the mechanical and electrical characteristics of the standard system enclosure. It can easily be retrofitted into existing shipboard installations without disturbing the enclosure mounting position. Appropriate engineering tradeoffs were made in the design of the RLG IMU to balance the sometimes conflicting factors of performance, reliability, cost, and environmental isolation. An engineering prototype of the system has been built and tested. Steps taken to isolate the instruments from environmental influences are described. The relationship between system design and reliability/maintainability is discussed.
Published in:	Proceedings of the 43rd Annual Meeting of The Institute of Navigation (1987) June 23 - 25, 1987 Dayton, Ohio
Pages:	44 - 50
Cite this article:	Remuzzi, Clinton C., "Ring Laser Gyro Marine INS," Proceedings of the 43rd Annual Meeting of The Institute of Navigation (1987), Dayton, Ohio, June 1987, pp. 44-50.
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