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Solent-class Lifeboat
The Solent-class lifeboat is a steel-hulled version of the Oakley-class self-righting lifeboat and is sometimes referred to as the 48-foot, 6-inch Oakley-class Mark III. Solent Operational Numbers followed on from the first three 48-foot, 6-inch Oakleys and were interrupted by the last two Oakleys (48-12 and 48-13). The operational numbers of the Solent-class had three digits in the suffix to indicate a metal hull (as with Clyde, Waveney, Thames and Tyne classes, one Arun class and the first eleven Merseys). Two digits indicates a wooden, glass-reinforced plastic or fiber-reinforced composite hull. Description The Solent was powered by twin 110 bhp Gardner 6LX diesel engines which gave the boat a top speed of . There were twin spade rudders installed which were coupled to Mathway manual steering gear. Apart from the steel hull, the Solent-class differed from the Oakley-class in its self-righting mechanism. The Oakley used a water ballast system, while the Solent class w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cowes
Cowes () is an English seaport town and civil parish on the Isle of Wight. Cowes is located on the west bank of the estuary of the River Medina, facing the smaller town of East Cowes on the east bank. The two towns are linked by the Cowes Floating Bridge, a chain ferry. As of 2020 it had an estimated population of 14,724. Charles Godfrey Leland's 19th-century verses describe the towns poetically as "The two great Cowes that in loud thunder roar/This on the eastern, that the western shore". Cowes has been seen as a home for international yacht racing since the founding of the Royal Yacht Squadron in 1815. It gives its name to the world's oldest regular regatta, Cowes Week, which occurs annually in the first week of August. Later, powerboat races are held. Much of the town's architecture is still heavily influenced by the style of ornate building that Prince Albert popularised. History Name The name ''Westcowe'' was attested in 1413 as the name of one of two sandbanks, o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waveney-class Lifeboat
The Waveney-class lifeboat was the first class of lifeboats operated by the Royal National Lifeboat Institution (RNLI) capable of operating at speeds in excess of . Based on an American design, 22 saw operational service between 1964 and 1999 at the RNLI's stations around the coast of the United Kingdom and Ireland. After being superseded by faster boats in the 1990s, many were sold for further use with lifeboat services abroad, notably in Australia and New Zealand. The class name comes from the River Waveney which discharges into the North Sea at Great Yarmouth. History In the 1960s the RNLI's fleet consisted of motor lifeboats of limited speed due to the shape of their hulls. The United States Coast Guard (USCG) had developed a 44-foot motor lifeboat which planed across the surface of the water, the consequence of which is a reduced wetted surface area to the hull, and therefore a much higher speed. One was built for the RNLI by the USCG in Curtis Bay Coast Guard Yard, Maryl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ameland
Ameland (; West Frisian: It Amelân) is a municipality and one of the West Frisian Islands off the north coast of the Netherlands. It consists mostly of sand dunes. It is the third major island of the West Frisians. It neighbours islands Terschelling to the west and Schiermonnikoog to the east. This includes the small Engelsmanplaat and Rif sandbanks to the east. Ameland is, counted from the west, the fourth inhabited Dutch Wadden island and belongs to the Friesland (''Fryslân'') province. The whole island falls under one municipality, which carries the same name. The Wadden islands form the border between the North Sea and the Wadden Sea, which lies on the south side of the island file. The municipality of Ameland had a population of in . The inhabitants are called Amelanders. Places The island has four villages, and one small part-village. There were two other villages: Oerd and Sier, but these were flooded and now lie in the sea. The name of these villages liv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Self-righting Mechanism
In robot combat, a self-righting mechanism or srimech (sometimes spelled as srimec or shrimech) is a device used to re-right a robot should it get flipped. ''Biohazard'' of ''BattleBots'' was the first robot to self-right. Military applications As of 2016, the U.S. Army Research Laboratory (ARL), based at Aberdeen Proving Grounds, MD, developed self-righting robots for bomb defusal and reconnaissance. Listed as a 2004-2020 effort, the prototype was called CRAM, for compressible robot with articulated mechanisms. ARL scientists were led by Chad Kessens, and collaborated with researchers from the University of California, Berkeley, and Johns Hopkins University to develop a prototype. Cockroach exoskeletons inspired researchers to manufacture a robot that can move around rapidly in both open and confined spaces with self-righting capabilities. In 2016, ARL and its collaborators published additional research, “Cockroach-inspired winged robot reveals principles of ground-based dynam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiber-reinforced Composite
__NOTOC__ A fiber-reinforced composite (FRC) is a composite building material that consists of three components:Serope Kalpakjian, Steven R Schmid. "Manufacturing Engineering and Technology". International edition. 4th Ed. Prentice Hall, Inc. 2001. . #the fibers as the discontinuous or dispersed phase, #the matrix as the continuous phase, and #the fine interphase region, also known as the interface. This is a type of advanced composite group, which makes use of rice husk, rice hull,rice shell, and plastic as ingredients. This technology involves a method of refining, blending, and compounding natural fibers from cellulosic waste streams to form a high-strength fiber composite material in a polymer matrix. The designated waste or base raw materials used in this instance are those of waste thermoplastics and various categories of cellulosic waste including rice husk and saw dust. Introduction FRC is high-performance fiber composite achieved and made possible by cross-linking cel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glass-reinforced Plastic
Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth. The plastic matrix may be a thermoset polymer matrix—most often based on thermosetting polymers such as epoxy, polyester resin, or vinyl ester resin—or a thermoplastic. Cheaper and more flexible than carbon fiber, it is stronger than many metals by weight, non-magnetic, non-conductive, transparent to electromagnetic radiation, can be molded into complex shapes, and is chemically inert under many circumstances. Applications include aircraft, boats, automobiles, bath tubs and enclosures, swimming pools, hot tubs, septic tanks, water tanks, roofing, pipes, cladding, orthopedic casts, surfboards, and external door skins. Other common names for fiberglass are glass-reinforced plastic (GRP), glass-fiber reinforced plastic (GFRP) or GFK ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mersey-class Lifeboat
Mersey-class lifeboats are all-weather lifeboats operated by the Royal National Lifeboat Institution (RNLI) from stations around the coasts of Great Britain and Ireland. They are capable of operating at up to and can be launched from a carriage. The class name comes from the River Mersey which flows into the Irish Sea in north west England. History During the 1960s and 1970s the RNLI introduced fast lifeboats capable of considerable greater speeds than the of existing designs. The first of these were only able to be kept afloat as their propellers would be damaged if launched using a slipway or carriage. In 1982 the steel-hulled came into service which could be launched down a slipway but weighed 25 tons so was not suitable for being moved across a beach on a carriage. The answer was to build a smaller boat with an aluminium hull, which became the Mersey Class. The first, unnamed, Mersey was built in 1986 and undertook trials during 1987 and 1988. It was then taken out of ser ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tyne-class Lifeboat
The Tyne-class lifeboat was a class of lifeboat that served as a part of the Royal National Lifeboat Institution fleet until 2019. They were named after the River Tyne in North East England. They were designed to be launched from slipways or operate in shallow waters where hitting the bottom is a concern. The class was introduced in 1982, and the last boat was built in 1990. The Tyne class was superseded by the Tamar-class lifeboat, which is 7 knots faster than the Tyne class. However, only 27 Tamars were built, compared to 40 Tynes, leaving the remaining Tynes on station to be replaced with the latest Shannon-class lifeboat, Shannon-class boats. History The two prototype boats were built in 1982: 47-001 ''City of London'' (ON 1074) and 47-002 ''Sam and Joan Woods'' (ON 1075). Following completion of the test programme, ''City of London'' entered service at in November 1983 while ''Sam and Joan Woods'' was put into service in the relief fleet in 1984, by which time the first ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thames-class Lifeboat
The Thames-class lifeboat was operated by the Royal National Lifeboat Institution (RNLI) from its stations around the coasts of the United Kingdom between 1974 and 1997. Six were ordered but only two completed; they have both been sold on to other users. The class takes its name from the River Thames which flows through London and into the North Sea. History In the 1960s the RNLI's fleet consisted of motor lifeboats of limited speed due to the shape of their hull. The United States Coast Guard (USCG) had developed a faster 44-foot motor lifeboat which planed across the water with a reduced contact area and therefore could move much faster. The RNLI obtained one in 1964. This led to the introduction of the Waveney-class into service in 1967. The RNLI's architects designed a larger version with a longer hull and a bow of different shape. Six boats were ordered, four from Brooke Marine in Lowestoft and two from Richard Dunston in Hessle, but a cash-flow problem saw the project c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clyde-class Lifeboat
The Clyde-class lifeboat was operated by the Royal National Lifeboat Institution (RNLI) from two of its stations in the United Kingdom, and . Only three vessels were built for the RNLI, however a fourth vessel was built in the Netherlands to the same lines as 70-001 and 70-003 as a pilot boat for Trinity House. History Following a visit in the early sixties to lifeboat societies in the Netherlands and West Germany, which successfully employed cruising lifeboats, the RNLI's Management Committee decided to sanction the construction of two such boats for RNLI service. The first two boats went on trials in 1966 and in 1968 went on station at Clovelly and Kirkwall. The third boat was built as a relief but took over as station boat at Clovelly, with the first boat becoming the relief. It eventually became apparent that cruising type boats were not really suited to the RNLI's operations and the boats were used at their respective bases as normal lifeboats until withdrawal in 1988. Des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camper And Nicholsons
Camper and Nicholson was a yacht design and manufacturing company based in Gosport, England, for over two hundred years, constructing many significant vessels, such as Gipsy Moth IV and Prince Philip, Duke of Edinburgh, Prince Philip's yacht Bloodhound (yacht), Bloodhound. Its customers included Thomas Sopwith, William Kissam Vanderbilt II and George Spencer-Churchill, 6th Duke of Marlborough. Its yachts competed in America's Cup, The America's Cup, The Fastnet Race, the Olympic Games, Olympics, the Ocean Race (1973–1974 Whitbread Round the World Race, Whitbread Round the World Race) and many other yacht races. Today the name is used by a yacht brokerage firm. History Origin In 1782 Francis Calense Amos (1748–1824), who had trained as a shipwright in London, founded a shipyard in Gosport, leasing the land from the Royal Naval Dockyard. Initially he built and repaired small boats for local fishermen. In 1809 he took on his great-nephew, William Camper (1794-1863) as his appr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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