United States lightship LV-117
 LV-117 was a lightvessel of the United States Lighthouse Service. Launched in 1931 she operated as the Nantucket lightship south of Nantucket Shoals. Moored south of Nantucket Island Massachusetts the lightship was at the western part of the transatlantic shipping lane and the first lightship encountered by westbound liners approaching New York Harbor. On May 15 1934 one of these liners RMS Olympic rammed and sank LV-117 killing seven of her crew.