The Corporation of Trinity House of Deptford Strond, also known as Trinity House, is the official authority for lighthouses in England, Wales, the Channel Islands and Gibraltar. Trinity House is also responsible for the provision and maintenance of other navigational aids, such as lightvessels, buoys, and maritime radio/satellite communication systems. It is also an official deep sea pilotage authority, providing expert navigators for ships trading in Northern European waters.
A lightvessel, or lightship, is a ship that acts as a lighthouse. They are used in waters that are too deep or otherwise unsuitable for lighthouse construction. Although some records exist of fire beacons being placed on ships in Roman times, the first modern lightvessel was off the Nore sandbank at the mouth of the River Thames in England, placed there by its inventor Robert Hamblin in 1734. The type has become largely obsolete; lighthouses replaced some stations as the construction techniques for lighthouses advanced, while large, automated buoys replaced others.
The USCGC Conifer was a 180 foot seagoing buoy tender. Conifer and her sister ships, commonly referred to as "one-eighties", served as the backbone of the Coast Guard's Aids to Navigation fleet for over 50 years before their replacement by the newer Juniper-class cutters.
A lighthouse tender is a ship specifically designed to maintain, support, or tend to lighthouses or lightvessels, providing supplies, fuel, mail, and transportation.
The United States lightship Huron (LV-103) is a lightvessel that was launched in 1920. She is now a museum ship moored in Pine Grove Park, Port Huron, St. Clair County, Michigan.
USCGC Spar (WLB-403) was a 180-foot (55 m) sea going buoy tender. An Iris class vessel, she was built by Marine Ironworks and Shipbuilding Corporation in Duluth, Minnesota. Spar's preliminary design was completed by the United States Lighthouse Service and the final design was produced by Marine Iron and Shipbuilding. On 13 September 1943 the keel was laid, she was launched on 2 November 1943 and commissioned on 12 June 1944. The original cost for the hull and machinery was $865,941.
USLHT Shubrick was the first lighthouse tender steamer constructed by the Lighthouse Board.
Idawalley Zoradia Lewis was an American lighthouse keeper noted for her heroism in rescuing people from the seas.
The United States Coast Guard Cutter Fir was the last lighthouse tender built specifically for the United States Lighthouse Service to resupply lighthouses and lightships, and to service buoys. Fir was built by the Moore Drydock Company in Oakland, California in 1939. On 22 March 1939, the U.S. Lighthouse Tender Fir was launched. She was steam driven with twin screws, 175 feet (53 m) in length, had a beam of 32 feet (9.8 m), drew 11 feet 3 inches (3.43 m) of water, and displaced 885 tons. Fir was fitted with a reinforced bow and stern, and an ice-belt at her water-line for icebreaking. She was built with classic lines and her spaces were lavishly appointed with mahogany, teak, and brass. The crew did intricate ropework throughout the ship. The cost to build Fir was approximately US$390,000. Fir's homeport was Seattle, Washington for all but one of her fifty one years of service when she was temporarily assigned to Long Beach, California when USCGC Walnut was decommissioned on 1 July 1982.
The Nantucket Lightship LV58 was a lightvessel of the United States Lighthouse Board from 1894 to 1905. During those years, she primarily served the coast of Fire Island in New York and the Nantucket Shoals, though she was a relief vessel and served as needed in other locations off the northeast coast as well. From 1898 to her sinking in 1905, she was occasionally used as a lighthouse tender.
USLHT Azalea was an American lighthouse tender that operated in the fleet of the United States Lighthouse Board from 1891 to 1910 and of the United States Lighthouse Service from 1910 to 1917 and from 1919 to 1933. During and in the immediate aftermath of World War I, she served in the United States Navy as USS Azalea from 1917 to 1919. During World War II, she became the U.S. Navy seaplane tender USS Christiana (YAG-32) in 1942.
USS Zizania was a patrol craft tender that served in the United States Navy from 1917 to 1919 and again as USS Adario from 1943 to 1946.
USS Maple, was a lighthouse tender that served in the United States Navy from 1893 to 1899, seeing service as an auxiliary ship during the Spanish–American War in 1898, and from 1917 to 1919, operating as a patrol vessel during World War I. She also served as USLHT Maple in the United States Lighthouse Board fleet from 1899 to 1910 and in the United States Lighthouse Service from 1910 to 1933.
The USCGC Walnut (WLM-252) was a steel-hulled, steam-powered twin-screw Hollyhock-class tender built for the Lighthouse Service in 1939 at Oakland, California. With the transfer of the Lighthouse Service to the Coast Guard in June, 1939, she was commissioned as a Coast Guard cutter on 8 July 1939.
USCGC Acacia (WAGL-200) was originally built for service by the U.S. Army as a mine planter shortly after World War I and later transferred to the U.S. Lighthouse Service, which became part of the U.S. Coast Guard in 1939; when transferred the ship was redesignated as a Speedwell-class buoy tender. She was sunk in 1942 by a German U-boat.
USLHT Armeria was a lighthouse tender in commission with the United States Lighthouse Board from December 1890 to March 1898. After Spanish–American War service in the United States Navy as USS Armeria from May to August 1898, she resumed her lighthouse tender duties, first with the Lighthouse Board from 1898 to 1910 and then with its successor organization, the United States Lighthouse Service, from 1910 until she was wrecked in 1912. She was the first lighthouse tender assigned to permanent duty in the Territory of Alaska.
USLHT Mangrove was a lighthouse tender in commission in the fleet of the United States Lighthouse Board from December 1897 to April 1898 and from August 1898 to 1910, in the United States Lighthouse Service from 1910 to 1917 and from 1919 to 1939, and in the United States Coast Guard from 1939 to 1941 and in 1946. She also saw commissioned service in the United States Navy as USS Mangrove on three occasions, operating as an armed supply ship from April to August 1898 during the Spanish–American War, during which she fought the last battle of that war; as a patrol vessel from 1917 to 1919 during and in the aftermath of World War I; and as a buoy tender from 1941 to 1946 during and in the aftermath of World War II.
USLHT Cedar was a lighthouse tender in commission in the fleet of the United States Lighthouse Service in 1917 and from 1919 to 1939, and – as USCGC Cedar (WAGL-207) – in the fleet of the United States Coast Guard from 1939 to 1950. She was in commissioned service in the United States Navy as the patrol vessel USS Cedar from 1917 to 1919 during and in the immediate aftermath of World War I. She also saw service in World War II under U.S. Navy control while in the Coast Guard fleet. She spent her career in the Pacific Northwest and the Territory of Alaska.
USCGC Planetree (WAGL/WLB-307) was a Mesquite-class seagoing buoy tender operated by the United States Coast Guard. She served during World War II, the Korean War, and the Vietnam War, as well as in a variety of domestic missions.
