Tug Of War Competitors At The 1920 Summer Olympics
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Tug Of War Competitors At The 1920 Summer Olympics
A tugboat or tug is a marine vessel that manoeuvres other vessels by pushing or pulling them, with direct contact or a tow line. These boats typically tug ships in circumstances where they cannot or should not move under their own power, such as in crowded harbour or narrow canals, or cannot move at all, such as barges, disabled ships, log rafts, or oil platforms. Some are ocean-going, some are icebreakers or salvage tugs. Early models were powered by steam engines, long ago superseded by diesel engines. Many have deluge gun water jets, which help in firefighting, especially in harbours. Types Seagoing Seagoing tugs (deep-sea tugs or ocean tugboats) fall into four basic categories: #The standard seagoing tug with model bow that tows almost exclusively by way of a wire cable. In some rare cases, such as some USN fleet tugs, a synthetic rope hawser may be used for the tow in the belief that the line can be pulled aboard a disabled ship by the crew owing to its lightness comp ...
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USS Tawasa (ATF-92)
USS ''Tawasa'' (AT-92) was a constructed for the United States Navy during World War II. Her purpose was to aid ships, usually by towing, on the high seas or in combat or post-combat areas, plus "other duties as assigned." She served in the Pacific Ocean and had a very successful career marked by the winning of three battle stars during World War II, two during the Korean War, and seven campaign stars during the Vietnam crisis. ''Tawasa'' was laid down on 22 June 1942 at Portland, Oregon, by the Commercial Iron Works; launched on 22 February 1943; sponsored by Mrs. Thomas F. Sullivan, mother of the five Sullivan brothers; and commissioned on 17 July 1943. World War II Pacific Theatre operations ''Tawasa'' held her shakedown cruise off the lower California coast in late August and returned to Portland. The tug steamed to San Pedro, California, in October and departed there on the 20th for Hawaii, towing two fuel oil barges. She arrived at Pearl Harbor on 4 November and was ass ...
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Gas Tanker
A gas carrier, gas tanker, LPG carrier, or LPG tanker is a ship designed to transport LPG, LNG, CNG, or liquefied chemical gases in bulk. Types Fully pressurized gas carrier The seaborne transport of liquefied gases began in 1934 when a major international company put two combined oil/LPG tankers into operation. The ships, basically oil tankers, had been converted by fitting small, riveted, pressure vessels for the carriage of LPG into cargo tank spaces. This enabled transport over long distances of substantial volumes of an oil refinery by-product that had distinct advantages as a domestic and commercial fuel. LPG is not only odourless and non-toxic, it also has a high calorific value and a low sulphur content, making it very clean and efficient when being burnt. Today, most fully pressurised oceangoing LPG carriers are fitted with two or three horizontal, cylindrical or spherical cargo tanks and have typical capacities between 20,000 and 90,000 cubic meters and Length over ...
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Harbour
A harbor (American English), harbour (British English; see spelling differences), or haven is a sheltered body of water where ships, boats, and barges can be docked. The term ''harbor'' is often used interchangeably with ''port'', which is a man-made facility built for loading and unloading vessels and dropping off and picking up passengers. Ports usually include one or more harbors. Alexandria Port in Egypt is an example of a port with two harbors. Harbors may be natural or artificial. An artificial harbor can have deliberately constructed breakwaters, sea walls, or jettys or they can be constructed by dredging, which requires maintenance by further periodic dredging. An example of an artificial harbor is Long Beach Harbor, California, United States, which was an array of salt marshes and tidal flats too shallow for modern merchant ships before it was first dredged in the early 20th century. In contrast, a natural harbor is surrounded on several sides of land. Examples ...
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Svitzer Tyr - Ystad-2018
(), also known simply as Maersk (), is a Danish shipping company, active in ocean and inland freight transportation and associated services, such as supply chain management and port operation. Maersk was the largest container shipping line and vessel operator in the world from 1996 until 2022. The company is based in Copenhagen, Denmark, with subsidiaries and offices across 130 countries and around 83,000 employees worldwide in 2020. It is a publicly traded family business, as the company is controlled by the namesake Møller family through holding companies. In September 2016, Maersk Group announced that it was splitting into two separate divisions: Transport & Logistics, and Energy. The company's 2018 annual revenue was US$39 billion (2019). In the 2020 Forbes Global 2000, Møller-Maersk was ranked as the 622nd -largest public company in the world. History () was founded in Svendborg in April 1904 by captain Peter Mærsk Møller (1836–1927) and his son Arnold Peter ...
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ColRegs
The International Regulations for Preventing Collisions at Sea 1972 (COLREGs) are published by the International Maritime Organization (IMO) and set out, among other things, the "rules of the road" or navigation rules to be followed by ships and other vessels at sea to prevent collisions between two or more vessels.''Convention on the International Regulations for Preventing Collisions at Sea, 1972 (COLREGs)''
, from the IMO (The International Maritime Organisation). Retrieved 13 February 2006.
COLREGs can also refer to the specific political line that divides

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Bludworth
{{unreferenced, date=March 2011 The Bludworth articulated tug and barge (ATB) ocean Tug boat, tug barge connection system was developed by Richard and Robert Bludworth during the 1960s. The first Bludworth articulated tug barge unit was the ocean Liquefied petroleum gas (LPG) barge Ponciana which was coupled with the converted ATB tug Texan in 1970. The Texan sank off Cape Hatteras in 1979. The Ponciana is still a working ocean LPG barge coupled with the 1980 built tug Texan. See also

* Integrated tug and barge Tugboats ...
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Articulated Vehicle
An articulated vehicle is a vehicle which has a permanent or semi-permanent pivot joint In animal anatomy, a pivot joint (trochoid joint, rotary joint or lateral ginglymus) is a type of synovial joint whose movement axis is parallel to the long axis of the proximal bone, which typically has a convex articular surface. According to o ... in its construction, allowing it to turn more sharply. There are many kinds, from heavy equipment to Articulated bus, buses, trams and Articulated car, trains. Articulated locomotive, Steam locomotives were sometimes articulated so driving wheels could pivot around corners. In a broader sense, any vehicle towing a Trailer (vehicle), trailer (including a semi-trailer) could be described as articulated (which comes from the Latin ''articulus'', "small joint"). In the UK, an ''articulated lorry'' is the combination of a Tractor unit, tractor and a trailer, abbreviated to "artic". In the US, it is called a semi-trailer truck, tractor-trailer or se ...
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Seakeeping
Seakeeping ability or seaworthiness is a measure of how well-suited a watercraft is to conditions when underway. A ship or boat which has good seakeeping ability is said to be very seaworthy and is able to operate effectively even in high sea states. Measure In 1976, St. Denis suggested four principal terms needed to describe a seakeeping performance. These are: *Mission: what the ship is intended to accomplish. The role of the ship while at sea. *Environment: the conditions under which the ship is operating. This can be described as sea state, wind speed, geographic region or some combination thereof. *Ship responses: the response of the ship to the environmental conditions. The responses are a function of the environment and the vessel characteristics. *Seakeeping performance criteria: the established limits for the ship's responses. These are based on the ship motions and the accelerations experienced, and include comfort criteria such as noise, vibration and sea sickness, perfo ...
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Det Norske Veritas
DNV (formerly DNV GL) is an international accredited registrar and classification society headquartered in Høvik, Norway. The company currently has about 12,000 employees and 350 offices operating in more than 100 countries, and provides services for several industries including maritime, oil and gas, renewable energy, electrification, food and beverage and healthcare. DNV GL was created in 2013 as a result of a merger between two leading organizations in the field — (Norway) and (Germany). In 2021, DNV GL changed its name to DNV, while retaining its post-merger structure. DNV is the world's largest classification society, providing services for 13,175 vessels and mobile offshore units (MOUs) amounting to 265.4 million gross tonnes, which represents a global market share of 21%. It is also the largest technical consultancy and supervisory to the global renewable energy (particularly wind, wave, tidal and solar) and oil and gas industry — 65% of the world's of ...
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Indian Register Of Shipping
Indian Register of Shipping (IRClass) is an internationally recognised, independent ship classification society, founded in India in 1975. It is a public limited company incorporated under Section 25 of the Indian Companies Act 1956 (Section 8 of Indian Companies Act 2013). It is a Non-Profit organisation, Public undertaking and a member of the 11 member International Association of Classification Societies (IACS). It was inducted into IACS along with Croatian Register of Shipping (CRS) and Polish Register of Shipping (PRS). Today, IRClass acts on behalf of the Maritime Administration of the Government of India as the sole authority for final assignment of Load Lines in Indian flag vessels and also as the security organisation that determines compliance under the International Ship and Port Facility Security Code (ISPS) code for Indian flag ships and port facilities. IRClass provides independent third party technical inspection and certification services for all types of ships, ...
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Lloyd's Register Of Shipping
Lloyd's Register Group Limited (LR) is a technical and professional services organisation and a maritime classification society, wholly owned by the Lloyd’s Register Foundation, a UK charity dedicated to research and education in science and engineering. The organisation dates to 1760. Its stated aims are to enhance the safety of life, property, and the environment, by helping its clients (including by validation, certification, and accreditation) to improve the safety and performance of complex projects, supply chains and critical infrastructure. In July 2012, the organisation converted from an industrial and provident society to a company limited by shares, named Lloyd’s Register Group Limited, with the new Lloyd’s Register Foundation as the sole shareholder. At the same time the organisation gave to the Foundation a substantial bond and equity portfolio to assist it with its charitable purposes. It will benefit from continued funding from the group’s operating arm, L ...
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