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USCGC Anthony Petit (WLM-558)
USCGC ''Anthony Petit'' (WLM-558) is a Keeper-class cutter, Keeper-class Buoy tender, coastal buoy tender of the United States United States Coast Guard, Coast Guard. Launched in 1999, she has served her entire career maintaining navigational aids in Southeast Alaska. Construction ''Anthony Petit'' was built by Marinette Marine, Marinette Marine Corporation in Marinette, Wisconsin. She was the eighth of the fourteen Keeper-class vessels completed. The contract price for the entire class was $220 million, suggesting that the original cost of ''Anthony Petit'' was approximately $15.7 million. The ship was launched on January 30, 1999, into the Menominee River. Speakers at the christening ceremony included Alaska United States Senate, Senator Frank Murkowski, and Commandant of the Coast Guard, Coast Guard Commandant James Loy, Admiral James Loy. The hull is built of welded steel plate. The ship is long and has a beam of . Her draft is . Keeper-class ships, including ''Ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ketchikan, Alaska
Ketchikan ( ; tli, Kichx̱áan) is a city in and the borough seat of the Ketchikan Gateway Borough of Alaska. It is the state's southeasternmost major settlement. Downtown Ketchikan is a National Historic District. With a population at the 2020 census of 8,192, up from 8,050 in 2010, it is the sixth-most populous city in the state, and thirteenth-most populous community when census-designated places are included. The surrounding borough, encompassing suburbs both north and south of the city along the Tongass Highway (most of which are commonly regarded as a part of Ketchikan, albeit not a part of the city itself), plus small rural settlements accessible mostly by water, registered a population of 13,948 in that same census. Incorporated on August 25, 1900, Ketchikan is the earliest extant incorporated city in Alaska, because consolidation or unification elsewhere in Alaska resulted in the dissolution of those communities' city governments. Ketchikan is located on Revillagige ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dynamic Positioning
Dynamic positioning (DP) is a computer-controlled system to automatically maintain a vessel's position and heading by using its own propellers and thrusters. Position reference sensors, combined with wind sensors, motion sensors and gyrocompasses, provide information to the computer pertaining to the vessel's position and the magnitude and direction of environmental forces affecting its position. Examples of vessel types that employ DP include ships and semi-submersible mobile offshore drilling units (MODU), oceanographic research vessels, cable layer ships and cruise ships. The computer program contains a mathematical model of the vessel that includes information pertaining to the wind and current drag of the vessel and the location of the thrusters. This knowledge, combined with the sensor information, allows the computer to calculate the required steering angle and thruster output for each thruster. This allows operations at sea where mooring or anchoring is not feasible du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vessel Of Opportunity Skimming System
Vessel(s) or The Vessel may refer to: Biology * Blood vessel, a part of the circulatory system and function to transport blood throughout the body * Lymphatic vessel, a thin walled, valved structure that carries lymph * Vessel element, a narrow water transporting tube in plant Containers * Bowl (vessel), a common open-top container *Drinking vessel, for holding drinkable liquids *Pressure vessel, designed to hold fluids at a pressure different from the ambient pressure Watercraft * Watercraft, also known as water vessel, craft designed for transportation on water ** Sailing ship or sailing vessel, watercraft that uses sails and wind power for movement Arts and entertainment Film and television * ''Vessel'' (film), a 2014 documentary film by Diana Whitten * ''The Vessel'' (film), a 2016 film starring Martin Sheen * ''The Vessel'' (web series), a 2012 British comedy web series * "The Vessel" (''The Outer Limits''), a television episode Music Performers * Vessels (band), a Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dixon Entrance
The Dixon Entrance (french: Entrée Dixon) is a strait about long and wide in the Pacific Ocean at the Canada–United States border, between the U.S. state of Alaska and the province of British Columbia in Canada. The Dixon Entrance is part of the Inside Passage shipping route. It forms part of the maritime boundary between the U.S. and Canada, although the location of that boundary here is disputed. Etymology The strait was named by Joseph Banks for Captain George Dixon, a Royal Navy officer, fur trader, and explorer, who surveyed the area in 1787. Geography The Dixon Entrance lies between Clarence Strait in the Alexander Archipelago in Alaska to the north, and Hecate Strait and the islands known as Haida Gwaii (the Queen Charlotte Islands) in British Columbia, to the south. Prince of Wales Island, Alaska, is the largest of the Alaskan islands on the north side of the entrance; the Kaigani Haida occupy this island. Members of the Haida nation maintain free access across the St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MV Lituya
MV ''Lituya'' is a shuttle ferry operated by the Alaska Marine Highway System. Her route connects Metlakatla on Annette Island to Ketchikan. Construction and characteristics The state of Alaska issued contracts for a ferry dock at Metlakatla in 1973. The town was originally served by Alaska Marine Highway System ferry M/V ''Chilkat''. The terminal was later modified for use by M/V ''LeConte'' and M/V ''Aurora'' instead. During the summer there were several stops a week, but in the winter, the town had one ferry visit per week. Metlakatla residents argued for daily service, so that people could commute to work in Ketchikan. The state of Alaska issued a request for proposals for the design of a Metlakatla ferry on May 30, 2000. The Alaska Legislature appropriated $3 million for a new ferry and $880,000 for a new ferry terminal for it to dock at as part of the state's 2001 budget. ''Lituya'' was designed by Coastwise Engineering of Juneau, Alaska in 2001. She was built ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USCGC Planetree (WLB-307)
USCGC ''Planetree'' (WAGL/WLB-307) was a Mesquite-class USCG seagoing buoy tender, 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. Construction and characteristics ''Planetree'' was built at the Marine Ironworks and Shipbuilding Company yard in Duluth, Minnesota. Her keel was laid down on December 4, 1942. The ship was launched on March 20, 1943. Her original cost was $872,876. Her hull was constructed of welded steel plates framed with steel I-beams. As originally built, ''Planetree'' was long, with a beam of , and a draft of . Her displacement was 935 tons. While her overall dimensions remained the same over her career, the addition of new equipment raised her displacement to 1,025 tons by the end of her Coast Guard service. She was designed to perform light ice-breaking. Her hull was reinforced with an "ice belt" of thicker steel around her ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coast Guard Base Ketchikan
Coast Guard Base Ketchikan is a major shore installation of the United States Coast Guard located in Ketchikan, Alaska. The base is a homeport for two Sentinel-class cutters and a buoy tender, and is the only Coast Guard dry dock in the state. Located one mile south of the city's downtown area along the southwestern shore of Revillagigedo Island, the base was originally established in 1920 to support the United States Lighthouse Service and became part of the Coast Guard in 1940.Coast Guard Alaska In addition to the homeported cutters, Base Ketchikan's maintenance facilities support forward-deployed cutters throughout |
Panama Canal
The Panama Canal ( es, Canal de Panamá, link=no) is an artificial waterway in Panama that connects the Atlantic Ocean with the Pacific Ocean and divides North and South America. The canal cuts across the Isthmus of Panama and is a conduit for maritime trade. One of the largest and most difficult engineering projects ever undertaken, the Panama Canal shortcut greatly reduces the time for ships to travel between the Atlantic and Pacific oceans, enabling them to avoid the lengthy, hazardous Cape Horn route around the southernmost tip of South America via the Drake Passage or Strait of Magellan and the even less popular route through the Arctic Archipelago and the Bering Strait. Colombia, France, and later the United States controlled the territory surrounding the canal during construction. France began work on the canal in 1881, but stopped because of lack of investors' confidence due to engineering problems and a high worker mortality rate. The United States took over the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saint Lawrence Seaway
The St. Lawrence Seaway (french: la Voie Maritime du Saint-Laurent) is a system of locks, canals, and channels in Canada and the United States that permits oceangoing vessels to travel from the Atlantic Ocean to the Great Lakes of North America, as far inland as Duluth, Minnesota, at the western end of Lake Superior. The seaway is named for the St. Lawrence River, which flows from Lake Ontario to the Atlantic Ocean. Legally, the seaway extends from Montreal, Quebec, to Lake Erie, and includes the Welland Canal. Ships from the Atlantic Ocean are able to reach ports in all five of the Great Lakes. The St. Lawrence River portion of the seaway is not a continuous canal; rather, it consists of several stretches of navigable channels within the river, a number of locks, and canals along the banks of the St. Lawrence River to bypass several rapids and dams. A number of the locks are managed by the St. Lawrence Seaway Management Corporation in Canada, and others in the United States b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Lakes
The Great Lakes, also called the Great Lakes of North America, are a series of large interconnected freshwater lakes in the mid-east region of North America that connect to the Atlantic Ocean via the Saint Lawrence River. There are five lakes, which are Lake Superior, Superior, Lake Michigan, Michigan, Lake Huron, Huron, Lake Erie, Erie, and Lake Ontario, Ontario and are in general on or near the Canada–United States border. Hydrologically, lakes Lake Michigan–Huron, Michigan and Huron are a single body joined at the Straits of Mackinac. The Great Lakes Waterway enables modern travel and shipping by water among the lakes. The Great Lakes are the largest group of freshwater lakes on Earth by total area and are second-largest by total volume, containing 21% of the world's surface fresh water by volume. The total surface is , and the total volume (measured at the low water datum) is , slightly less than the volume of Lake Baikal (, 22–23% of the world's surface fresh water ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buoy Maintenance On Anthony Petit
A buoy () is a floating device that can have many purposes. It can be anchored (stationary) or allowed to drift with ocean currents. Types Navigational buoys * Race course marker buoys are used for buoy racing, the most prevalent form of yacht racing and power boat racing. They delimit the course and must be passed to a specified side. They are also used in underwater orienteering competitions. * Emergency wreck buoys provide a clear and unambiguous means of temporarily marking new wrecks, typically for the first 24–72 hours. They are coloured in an equal number of blue and yellow vertical stripes and fitted with an alternating blue and yellow flashing light. They were implemented following collisions in the Dover Strait in 2002 when vessels struck the new wreck of the . * Ice marking buoys mark holes in frozen lakes and rivers so snowmobiles do not drive over the holes. * Large Navigational Buoys (LNB, or Lanby buoys) are automatic buoys over 10 m high equipped w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleutian Islands
The Aleutian Islands (; ; ale, Unangam Tanangin,”Land of the Aleuts", possibly from Chukchi language, Chukchi ''aliat'', "island"), also called the Aleut Islands or Aleutic Islands and known before 1867 as the Catherine Archipelago, are a chain of 14 large volcanic islands and 55 smaller islands. Most of the Aleutian Islands belong to the U.S. state of Alaska, but some belong to the Russian Federal subjects of Russia, federal subject of Kamchatka Krai. They form part of the Aleutian Arc in the Northern Pacific Ocean, occupying a land area of 6,821 sq mi (17,666 km2) and extending about westward from the Alaska Peninsula toward the Kamchatka Peninsula in Russia, and act as a border between the Bering Sea to the north and the Pacific Ocean to the south. Crossing 180th meridian, longitude 180°, at which point east and west longitude end, the archipelago contains both the westernmost part of the United States by longitude (Amatignak Island) and the easternmost by longitude ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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