Northrop Grumman Corporation’s (NYSE: NOC) Sperry Marine business unit is marking a major milestone in the history of the company’s leadership in radar technology with the celebration this year of the 60th anniversary of the launch of its first marine radar. Sperry Marine’s heritage in marine radar dates back to August 1949, when the U.K.-based Decca Marine Group introduced its first commercial marine radar product, the Type 159. The Decca brand product lines later became incorporated with Sperry Marine under Northrop Grumman ownership. DaCunha noted that the company has sold more than 150,000 marine radar sets in almost every country of the world since the first product appeared in 1949.