The United States Lightship LV-87/WAL-512 (Ambrose) is a riveted steel lightship built in 1907 and served at the Ambrose Channel lightship station from December 1, 1908, until 1932, and in other posts until her decommissioning in 1966. It is one of a small number of preserved American lightships, and now serves as a museum ship at the South Street Seaport Museum in southern Manhattan.
In 1921, the first radio beacon in the United States was installed in the ship's radio shack. This addition greatly assisted ships navigating the congested Ambrose Channel in dense fog. LV-87 would also be the last steam-powered vessel to hold the Ambrose Channel post.
After the end of her Ambrose Channel assignment in 1932, LV-87 underwent a major refit, most significantly switching from steam propulsion to a direct drive Winton Diesel engine, as well as the removal of her anchor burton on her bow and a reorganization of her deck structures. Afterward, the ship was assigned to various posts which included being used as an examination vessel during World War II. Although her final post was at the Scotland Station she is commonly known by the name of her most famous station, Ambrose.
LV-87 was decommissioned on March 4, 1966, from the Coast Guard after 59 years of service. In 1968 she was given to the South Street Seaport Museum in Lower Manhattan. Currently she is moored at Pier 16 on the East River and is used as a floating exhibit. In April 1989, the lightship was declared a National Historic Landmark.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.