Northrop Grumman Corporation's Sperry Marine business unit has recently won orders to supply navigation electronics for four new marine vessels in Brazil. 2,500 gross ton vessels being built at the Fels Setal shipyard in Rio de Janeiro for Delba Maritima Navegacao. The company will provide interswitched BridgeMaster E 250 and 340 radars, a gyrocompass, autopilot, speed log, echosounder, anemometer and differential global positioning system (DGPS). The three new anchor-handling tugs are scheduled for completion in 2003 and 2004. Sperry Marine will also supply an integrated bridge system for a new tugboat being built at Eisa shipyard in Rio de Janeiro for Norsul.