USS North Carolina (SSN-777)

USS North Carolina (SSN-777)

USS North Carolina (SSN-777), a Virginia-class attack submarine, is the fourth ship of the United States Navy named for the 12th state.

The contract to build her was awarded to Northrop Grumman Newport News on 30 September 1998 and her keel was laid down on 24 May 2004. She was launched on 5 May 2007.

North Carolina was commissioned on 3 May 2008. This class of submarine is unique in that it features a Photonics Mast Program (PMP) that freed ship designers to place the boat's control room in a lower, less geometrically-constrained space than would be required by a standard, optical tube periscope. It is additionally unique in the U.S. Navy for featuring all-digital ship and ballast control systems that are manned by relatively senior watchstanders and a pressure chamber to deploy SEAL divers while being submerged.