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Goa Shipyard
Goa Shipyard Limited (GSL) is an Indian Government owned ship building company located on the West Coast of India at Vasco da Gama, Goa. It was established in 1957, originally by the colonial government of the Portuguese in India as the "Estaleiros Navais de Goa", to build barges to be used in Goa's growing mining industry, which took off after the establishment of India's blockade of Goa in 1955. In the wake of Portugal's defeat and unconditional surrender to India following the 1961 Indian annexation of Goa, it was requisitioned to manufacture warships for the Indian Navy and the Indian Coast Guard. GSL is undergoing a modernisation of its yard to adapt to the latest technology in shipbuilding. To this purpose it is negotiating with well-known shipbuilders for an arrangement to collaborate. To date it has built 167 vessels, including barges, tugs, landing craft, offshore patrol vessels and other vessels for the Indian Navy and Coast Guard and for export to countries like Yemen. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SLNS Sayurala (2016)
SLNS ''Sayurala'' () pennant number P623 (''Sayurala'', in English: Sea Waves) is the flagship and an advanced offshore patrol vessel (AOPV) of the Sri Lanka Navy. It is the sister ship of SLNS Sindurala. In February 2014 contract was signed by Government of Sri Lanka and Goa Shipyard for the two Advanced Offshore Patrol Vessels (AOPVs) for the Sri Lanka Navy and the production of the first AOPV began on 15 May 2014. The Keel of the vessel was laid on 10 September 2014 and was ceremonially launched on 10 June 2016. Operations After the Sri Lanka Navy received the ship, it has been equipped with the Israeli Intercepting Equipment. As its first deployment Sayurala took part in Southeast Asian Nations (ASEAN) International Fleet Review 2017 in Thailand. This is the longest foreign tour (21 days) an SLN Ship undertook after the year 1965 with 127 sailors including 18 officers. In 2018, Sayurala took part SLINEX 2018 together with SLNS Samudura, SLNS Suranimala, INS Sumitra. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catamaran
A Formula 16 beachable catamaran Powered catamaran passenger ferry at Salem, Massachusetts, United States A catamaran () (informally, a "cat") is a multi-hulled watercraft featuring two parallel hulls of equal size. It is a geometry-stabilized craft, deriving its stability from its wide beam, rather than from a ballasted keel as with a monohull boat. Catamarans typically have less hull volume, smaller displacement, and shallower draft (draught) than monohulls of comparable length. The two hulls combined also often have a smaller hydrodynamic resistance than comparable monohulls, requiring less propulsive power from either sails or motors. The catamaran's wider stance on the water can reduce both heeling and wave-induced motion, as compared with a monohull, and can give reduced wakes. Catamarans were invented by the Austronesian peoples which enabled their expansion to the islands of the Indian and Pacific Oceans. Catamarans range in size from small sailing or rowi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Factory Vessel
A factory ship, also known as a fish processing vessel, is a large ocean-going vessel with extensive on-board facilities for processing and freezing caught fish or whales. Modern factory ships are automated and enlarged versions of the earlier whalers and their use for fishing has grown dramatically. Some factory ships are equipped to serve as a mother ship. Background Contemporary factory ships have their origins in the early whalers. These vessels sailed into remote waters and processed the whale oil on board, discarding the carcass. Later whalers converted the entire whale into usable products. The efficiency of these ships and the predation they carried out on whales contributed greatly to the animals' steep decline. Contemporary factory ships are automated and enlarged versions of these earlier whalers. Their use for fishing has grown dramatically. For a while, Russia, Japan and Korea operated huge fishing fleets centred on factory ships, though in recent times this use h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commercial Trawler
A fishing trawler is a commercial fishing vessel designed to operate fishing trawls. Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets that are pulled along the bottom of the sea or in midwater at a specified depth. A trawler may also operate two or more trawl nets simultaneously (double-rig and multi-rig). There are many variants of trawling gear. They vary according to local traditions, bottom conditions, and how large and powerful the trawling boats are. A trawling boat can be a small open boat with only 30 horsepower (22 kW) or a large factory ship with 10,000 horsepower (7457 kW). Trawl variants include beam trawls, large-opening midwater trawls, and large bottom trawls, such as "rock hoppers" that are rigged with heavy rubber wheels that let the net crawl over rocky bottom. History During the 17th century, the British developed the Dogger, an ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pollution Control
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants. Although environmental pollution can be caused by natural events, the word pollution generally implies that the contaminants have an anthropogenic source – that is, a source created by human activities. Pollution is often classed as point source or nonpoint source pollution. In 2015, pollution killed nine million people worldwide (one in six deaths). This remained unchanged in 2019, with little real progress against pollution being identifiable. Air pollution accounted for of these earlier deaths. Major forms of pollution include air pollution, light pollution, litter, noise pollution, plastic pollution, soil contamination, radioact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hovercraft
A hovercraft, also known as an air-cushion vehicle or ACV, is an amphibious craft capable of travelling over land, water, mud, ice, and other surfaces. Hovercraft use blowers to produce a large volume of air below the hull, or air cushion, that is slightly above atmospheric pressure. The pressure difference between the higher pressure air below the hull and lower pressure ambient air above it produces lift, which causes the hull to float above the running surface. For stability reasons, the air is typically blown through slots or holes around the outside of a disk- or oval-shaped platform, giving most hovercraft a characteristic rounded-rectangle shape. The first practical design for hovercraft was derived from a British invention in the 1950s. They are now used throughout the world as specialised transports in disaster relief, coastguard, military and survey applications, as well as for sport or passenger service. Very large versions have been used to transport hundreds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Effect Ship
A Surface Effect Ship (SES) or Sidewall Hovercraft is a watercraft that has both an air cushion, like a hovercraft, and twin hulls, like a catamaran. When the air cushion is in use, a small portion of the twin hulls remains in the water. When the air cushion is turned off ("off-cushion" or "hull borne"), the full weight of the vessel is supported by the buoyancy of the twin hulls. The SES has two advantages over a hovercraft for open sea operation: it is more resistant to slipping sideways when acted on by air or sea, and it can use water jets for propulsion since the inlet nozzles are always covered by water. History United States Navy The United States Navy initiated the SES model test program in 1960. By 1963, a 10-ton test craft called the XR-1 was designed and built to test the surface effect concept. The first version of the XR-1 used fixed plywood seals at the fore and aft ends of the captured air bubble section. A jet engine providing 1700 pounds of thrust was used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Talwar-class Frigate
The ''Talwar''-class frigates or Project 11356 are a class of stealth guided missile frigates designed and built by Russia for the Indian Navy. The ''Talwar''-class guided missile frigates are the improved versions of the Krivak III-class (Project 1135) frigates used by the Russian Coast Guard. The design has been further developed as the for the Russian Navy. Six ships were built in two batches between 1999 and 2013. Designed by Severnoye Design Bureau, the first batch of ships were built by Baltic Shipyard and the second batch by Yantar Shipyard. Preceded by the ''Brahmaputra''-class frigates, the ''Talwar''-class frigates are said to have semi-stealth features and better armament. The Indian Navy currently has six of these ships and 4 more are under construction including 2 in an Indian shipyard, for which Goa shipyard was selected. History On 17 November 1997, Russia and India signed a $1 billion contract, for three Krivak III-class multi-purpose frigates. The India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Future Indian Minehunter Class
GSL Mine Counter-Measure Vessels are series of twelve naval ship that were jointly proposed to be built by Goa Shipyard Limited and a yet to be decided TOT partner for the Indian Navy. Background In May 2004, the Indian Ministry of Defence (MOD) approved a Mine Counter-Measures Vessel (MCMV) programme. The plan was to procure up to 24 MCMVs to replace the 12 existing Soviet-made Pondicherry/Karwar-class ocean minesweepers that had been in service for the last 25 to 30 years. An order was placed with Goa Shipyard Limited (GSL) for eight Mine Counter-Measures Vessels (MCMVs). The hulls were to be made from "lightweight reinforced composites rather than steel to lower their acoustic and magnetic signatures and to better resist underwater explosions." Hence a request for proposal (RFP) for construction and/or technology assistance was asked by Goa Shipyard Limited from builders Intermarine of Italy, Kangnam Corp and IZAR of Spain. Kangnam and Intermarine were shortlisted for m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
INS Tarangini
INS ''Tarangini'' is a three-masted barque, commissioned in 1997 as a sail training ship for the Indian Navy. She is square rigged on the fore and main masts and fore-and-aft rigged on the mizzen mast. She was constructed in Goa to a design by the British naval architect Colin Mudie, and launched on 1 December 1995. In 2003–04, she became the first Indian naval ship to circumnavigate the globe. Apart from races, the ship sails extensively across the Indian Ocean region for the purpose of providing sail training experience to the officer cadets of the Indian Navy. The Indian Navy believes that training on board these ships is the best method of instilling among the trainees the "indefinable 'sea-sense' and respect for elements of nature, which are inseparable from safe and successful seafaring". The Navy believes that sail training also serves to impart the values of courage, camaraderie, endurance and esprit-de-corps among budding naval officers. Service history ''Tarangini'' s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barque
A barque, barc, or bark is a type of sailing vessel with three or more masts having the fore- and mainmasts rigged square and only the mizzen (the aftmost mast) rigged fore and aft. Sometimes, the mizzen is only partly fore-and-aft rigged, bearing a square-rigged sail above. Etymology The word "barque" entered English via the French term, which in turn came from the Latin ''barca'' by way of Occitan, Catalan, Spanish, or Italian. The Latin ''barca'' may stem from Celtic ''barc'' (per Thurneysen) or Greek ''baris'' (per Diez), a term for an Egyptian boat. The ''Oxford English Dictionary'', however, considers the latter improbable. The word ''barc'' appears to have come from Celtic languages. The form adopted by English, perhaps from Irish, was "bark", while that adopted by Latin as ''barca'' very early, which gave rise to the French ''barge'' and ''barque''. In Latin, Spanish, and Italian, the term ''barca'' refers to a small boat, not a full-sized ship. French influ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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