EDO to improve submarine sonar systems

Engineers at the EDO Corp. Acoustic Products division in Salt Lake City are designing underwater sonar hydrophone modules and communications systems for U.S. Navy attack submarines under two separate subcontracts potentially worth $2.6 million. The first subcontract, from Northrop Grumman Corp. in Los Angeles, is to develop and build large-area underwater acoustic hydrophone modules for the new version of the Navy wide aperture array sonar systems for the New Attack Submarine and for backfits on Los Angeles-class attack submarines. The second subcontract, from Raytheon Co. in Lexington, Mass., is to supply a modified version of the EDO Model 5400 underwater communications transceiver for the New Attack Submarine. - J.K.