Atlantic Transit The attack submarine USS Helena transits the Atlantic Ocean, March 24, 2016. The Helena and the USS Dwight D. Eisenhower are conducting a composite training unit exercise. Navy photo by Petty Officer 1st Class Rafael Martie SHARE: Download: Full Size (1.24 MB) Credit: Petty Officer 1st Class Rafael Martie VIRIN: 160324-N-QY430-469A.JPG Photo Gallery