Surrey. In the mid-1980s, Decca introduced the BridgeMaster series of radars, which used a rasterized colour display. The BridgeMaster II series followed, with a Motorola 68000 CPU and software options like vector traces showing the trajectories of other ships as part of the automatic radar plotting aid package. In December 1996 the US corporation Litton Industries bought Racal-Decca Marine, as well as Sperry Marine and C.Plath, under the Litton Marine Systems name. The Decca name, engineering, and design continued to be used on the BridgeMaster II and, in 1998, the BridgeMaster E series of radars was launched. The Sperry section of Litton Marine Systems, based in Charlottesville, Virginia, was already producing its own line of marine radars, the Rascar, at the time of the acquisition but this was replaced by the BridgeMaster E. The Rascar had been the American-made radar used in the American Navy and Coast Guard but eventually the BridgeMaster E made inroads there as well. Competitors at the time included Gold Star and Furuno. Northrop Grumman acquired Litton Industries in 2000 and this eventually heralded, in 2004, the end of the use of the Decca name on radars after a period of more than 50 years. In 2006 the VisionMaster FT series of marine radars replaced the aging BridgeMaster E series. References Information Sperry Marine - Northrop Grumman's Decca radar heritage External links VisionMaster FT marine radar website http://www.pitchero.com/clubs/racaldecca1xv/ Aircraft component manufacturers of the United Kingdom British companies established in 1949 Companies based in the Royal Borough of Kingston upon Thames Electronics companies established in 1949 Electronics companies of the United Kingdom Electronics industry in London Former defence companies of the United Kingdom History of the Royal Borough of Kingston upon Thames History of the London Borough of Lambeth Manufacturing companies based in London New Malden Radar Racal Radar manufacturers Science and technology on the Isle of Wight World War II radars