Northrop Grumman Corporation has received orders to supply electronic navigation systems for 13 new ships under construction at shipyards in Turkey. Sperry Marine, a business unit of Northrop Grumman, won the orders, which include nine chemical tankers at Marmara Shipyard (Yilak Group) and four new dry cargo and oil tankers at Yardimci and Turkter Shipyards (Yardimci Group). The ships will be fitted with Sperry Marine radars, autopilots, speed and heading sensors and other components. STT Deniz Ticaret ve Servis Ltd, Sperry Marine’s sales and service representative in Turkey, will install and commission the systems on the ships. Sperry Marine…