Lightship Ambrose was the name given to multiple lightships that served as the sentinel beacon marking Ambrose Channel, New York Harbor's main shipping channel. The first lightstation was established south of the Ambrose Channel off of Sandy Hook, New Jersey, in 1823. From 1823 through 1967, several ships served the Ambrose Channel station; each was referred to as Lightship Ambrose and bore the station's name being painted on her side. In 1906, the lightship serving this station was relocated closer to the center of the Ambrose Channel. On 24 August 1967, the Ambrose station lightship was replaced by a Texas Tower, the Ambrose Light. United States Lightship LV-16 (Sandy Hook) A sail-schooner built of white oak with copper and brass fastenings, Sandy Hook marked the south edge of the Ambrose Channel for 37 years, from 1854 to 1891. She was assigned the number 16 in 1862, prior to which she was known simply as Sandy Hook. Sandy Hook was equipped with two lanterns, each with eight oil lamps and reflectors, as well as a hand-rung bell for a fog warning. A Thiers automatic bilge pump, ventilator, and fog signal were installed in 1872, but the fog signal was found to be "unsatisfactory" and was removed. Two collisions were recorded during her time in service, the first in 1874 with the steamer Charleston, and the second in 1888 with the British barque Star of the East. United States Lightship LV-51 (Sandy Hook) Constructed in 1892, Sandy Hook (LV-51) served the post from 1894 to 1908. Sandy Hook Lightship was renamed Ambrose Lightship in 1907. Pilots would deliver mail to the vessel. This steamship was the first U.S. lightship to have an all-steel hull and fastenings and the first to use electric lights; she was also the last ship to hold the southerly post on the southern side of the channel, near Sandy Hook. After 1908, she was reassigned to relief duty. On 24 April 1919, she was rammed and sunk by a Standard Oil barge while relieving the Cornfield Point Lightship (LV-14). As a result of this incident, Standard Oil was forced to pay for the construction of LV111, which served as the Lightship Ambrose from 1932 to 1952. United States Lightship LV-87 / WAL-512 (Ambrose Channel / Ambrose) The Lightship Ambrose (LV87), built 1908, served her station until 1932 when she was reassigned to serve as the Lightship Scotland, a