U.S. Navy sailors Thursday began moving aboard LPD 17, the first San Antonio-class amphibious transport dock ship built by Northrop Grumman Corporation. This activity is a significant step in bringing this modern, highly technical asset to life as part of the nation's defense plan. Northrop Grumman Ship Systems delivered the LPD 17 to the U. Navy on July 20. Marines. such, offers unparalleled amphibious war-fighting capabilities. construction of U.S. Grumman's Ship Systems sector. ranks as the most significant because those men and women wearing U.S. Navy uniforms now have a place to call their home. than any ship in the history of the Navy. gunner's mate on LPD 17 who served on prior LPD-class ships. much easier to move around, especially if I'm carrying equipment.