USS Arlington LPD-24 Patch Sailors! Enjoy this beautifully embroidered USS Arlington LPD-24 Patch! 4 inches Embroidered/Hook and Loop US Naval Aviator Owned Business USS Arlington (LPD-24), a San Antonio-class amphibious transport dock, is the third ship of the United States Navy to be named for Arlington County, Virginia, the location of the Pentagon and the crash site of American Airlines Flight 77 during the terrorist attacks on 11 September 2001. Like her sister ships, USS New York and Somerset, she is named in commemoration of the attacks.[4] Steel taken from the Pentagon after the attacks is displayed aboard in the ship's museum.[5]