Marine Link
Tuesday, September 27, 2016

Northrop To Supply Navigation Systems

January 15, 2002

Northrop Grumman Corporation's Sperry Marine unit has been awarded a contract by BAE SYSTEMS (BAESY) to supply inertial navigation systems for three new Astute-class submarines for the U.K. Royal Navy. Each of the new submarines will be fitted with dual enhanced NATO Ship's Inertial Navigation Systems based on Sperry's ring laser gyro (RLG) systems technology. Equipment deliveries under the $5.8 million contract are scheduled to begin in late 2002 and will be completed in 2004.

It is reported that the RLG systems provide highly accurate navigation inputs and precise attitude and heading data for weapons control and combat management systems. The first of the new 7,200-ton, 318-ft. Astute-class nuclear attack submarines will be launched in 2004. The Ministry of Defense has ordered six of these submarines, which will replace the existing Swiftsure-class and early Trafalgar-class boats. A follow-on contract for the remainder of the Astute-class platforms is expected in 2002.



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