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Multihull Designers
A multihull is a boat or ship with more than one hull, whereas a vessel with a single hull is a monohull. The most common multihulls are catamarans (with two hulls), and trimarans (with three hulls). There are other types, with four or more hulls, but such examples are very rare and tend to be specialised for particular functions. Multihull history Single-outrigger boats, double-canoes (catamarans), and double-outrigger boats (trimarans) of the Austronesian peoples are the direct antecedents of modern multihull vessels. They were developed during the Austronesian Expansion (c. 3000 to 1500 BC) which allowed Austronesians to colonize maritime Southeast Asia, Micronesia, Island Melanesia, Madagascar, and Polynesia. These Austronesian vessels are still widely used today by traditional fishermen in Austronesian regions in maritime Southeast Asia, Oceania and Madagascar; as well as areas they were introduced to by Austronesians in ancient times like in the East African coast and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diagram Of Relationship Between Monohulls & Multihulls
A diagram is a symbolic representation of information using visualization techniques. Diagrams have been used since prehistoric times on walls of caves, but became more prevalent during the Enlightenment. Sometimes, the technique uses a three-dimensional visualization which is then projected onto a two-dimensional surface. The word ''graph'' is sometimes used as a synonym for diagram. Overview The term "diagram" in its commonly used sense can have a general or specific meaning: * ''visual information device'' : Like the term "illustration", "diagram" is used as a collective term standing for the whole class of technical genres, including graphs, technical drawings and tables. * ''specific kind of visual display'' : This is the genre that shows qualitative data with shapes that are connected by lines, arrows, or other visual links. In science the term is used in both ways. For example, Anderson (1997) stated more generally: "diagrams are pictorial, yet abstract, representatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Africa
East Africa, also known as Eastern Africa or the East of Africa, is a region at the eastern edge of the Africa, African continent, distinguished by its unique geographical, historical, and cultural landscape. Defined in varying scopes, the region is recognized in the United Nations Statistics Division United Nations geoscheme for Africa, scheme as encompassing 18 sovereign states and 4 territories. It includes the Horn of Africa to the North and Southeastern Africa to the south. Definitions In a narrow sense, particularly in English-speaking contexts, East Africa refers to the area comprising Kenya, Tanzania, and Uganda, largely due to their shared history under the Omani Empire and as parts of the British East Africa Protectorate and German East Africa. Further extending East Africa's definition, the Horn of Africa—comprising Djibouti, Eritrea, Ethiopia, and Somalia—stands out as a distinct geopolitical entity within East Africa.Robert Stock, ''Africa South of the Sahara, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chris White (multihull Designer)
Chris White is an American multihull sailboat designer. Career White built his first trimaran, a Jim Brown designed Searunner 31, in 1973. In the late 1970s he worked with Jim Brown and Dick Newick. His first large design was the 52' trimaran, ''Juniper'', built in southern Virginia Virginia, officially the Commonwealth of Virginia, is a U.S. state, state in the Southeastern United States, Southeastern and Mid-Atlantic (United States), Mid-Atlantic regions of the United States between the East Coast of the United States ... and launched in 1981, later sailed around the world by Henk de Velde. In 1983 he started his design business, developing the concept of the forward cockpit or pilot house catamaran. The first of the Atlantic Cats were launched in 1985. Designs *1981 ** ''Juniper'' *Later 1980s ** Discovery 20 ** Atlantic 50 *Atlantic Cats ** Atlantic 48 ** Atlantic 55 ** Atlantic 57 *2010s **Atlantic 47 Books In 1990 Chris published '' The Cruising Multihull'', wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthur Piver
Arthur Piver (; "Piver rhymes with diver"; 1910–1968) was a World War II pilot, an amateur sailor, author, printshop owner and renowned boatbuilder who lived in Mill Valley on San Francisco Bay and became "the father of the modern multihull." Career In the late 1950s and 1960s Piver designed and built a series of simple three-hulled, plywood yachts starting with a 16 footer and culminating in a 64-footer that was built in England for charter in the Caribbean. (The word "trimaran" was coined by Viktor Tchetchet, a Ukrainian emigrant to the US who tested his boats on Long Island sound in the late 1940s.) Piver crossed the Atlantic on his first ocean-going boat, the demountable 30 foot ''Nimble'', departing from Swansea, Mass, stopping in the Azores, and successfully reaching Plymouth, England. He then began selling do-it-yourself plans through a company called '' Pi-Craft''. He thought anyone could build one of his boats even if they had no experience. In 1962, Piver built hims ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lock Crowther
Lock Crowther (9 September 1940–1993; first name by birth Lachlan) was an Australian multihull sailboat designer. He grew up in Bairnsdale in the East Gippsland region of Victoria. Though his first name was Lachlan by birth, he insisted on being called Lock or Lockie. Career Lock and his family built his first boat, a trimaran called '' Bunyip'', in 1959 while he was still a teenager. In 1960 he raced in the Easter regatta at Paynesville, Victoria, Australia, and won against a field of 300 boats. This initial success inspired others to build similar boats. Crowther then studied electrical engineering in Melbourne and in the early 1960s became involved in multihull design and the '' Amateur Yacht Research Society''. In 1962 ''Trio'' was built based upon his designs. Crowther's next design was the Kraken 25, garnering some recognition. Later, Lockie decided to give up his day job in Melbourne and move to Sydney to design multihulls full-time. In 1969, a Kraken 40 won ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalac Catamarans
Catalac is a defunct English maritime construction company that specialised in building sailing catamarans. The company was founded by Tom Lack (hence "Cata + Lac"), in Christchurch, Dorset. After a successful period of production, the company closed in 1986. In the 1990s, the Catalac 9M was briefly revived and updated in the US as the "Catalac 900". Catalac catamarans The Catalac company's main model was the 9-metre 9M. All the other models are derived from the 9M and use a similar design concept; the 8M even used the same hulls as the 9M. All Catalacs were very strongly-built with thick grp hulls and glass windows. Some of the superstructure, such as the solid foredeck, was of sandwich grp construction. Compared to modern designs, Catalacs had a narrow beam of less than half the LOA, and vertical transoms (rather than the more modern "sugar scoop" with transom steps). Initially featuring lifting dinghy-type rudders, Catalac moved to fixed rudders protected by a skeg; this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derek Kelsall
Derek Kelsall (15 May 1933 – 11 December 2022) was an English multihull sailboat designer latterly resident in New Zealand. He began his career in surveying and in the oil industry, but found the lure of boats too great to ignore. Born in north Wales on 15 May 1933, he died in Thames, New Zealand on 11 December 2022, at the age of 89. Designs A partial list of Kelsall's designs follows. *'' Toria'' (1966) *'' Trifle'' (late 1960s) * ''Tonga Tonga, officially the Kingdom of Tonga, is an island country in Polynesia, part of Oceania. The country has 171 islands, of which 45 are inhabited. Its total surface area is about , scattered over in the southern Pacific Ocean. accordin ...'' 39 ft catamaran References 1933 births 2022 deaths Multihull designers Place of birth missing {{designer-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
James Wharram
James Wharram (15 May 1928 – 14 December 2021) was a British multihull pioneer and designer of catamarans. Polynesian beginnings Wharram was born in Manchester, England. In 1953, after long studies into the records of boats of the Pacific in the libraries and museums of Britain, and inspired by Eric de Bisschop's book ''The voyage of the Kaimiloa'', he designed and built the first British ocean-going double-canoe-catamaran, the ''Tangaroa'' (length ) and in 1955–56 sailed with Jutta Schultze-Rhonhof and Ruth Merseburger, across the Atlantic to Trinidad – the beginning of cruising (maritime), cruising and transatlantic crossing with a catamaran. No scholars in the Western world at this time believed that the Polynesians had boats capable of directed ocean voyages. Wharram believed otherwise and set out to prove it by doing it himself. He followed this first Atlantic crossing by building a 40-foot V-hull double canoe, ''Rongo (catamaran), Rongo'', in Trinidad in 1957–58, wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry G
Henry may refer to: People and fictional characters * Henry (given name), including lists of people and fictional characters * Henry (surname) * Henry, a stage name of François-Louis Henry (1786–1855), French baritone Arts and entertainment * ''Henry'' (2011 film), a Canadian short film * ''Henry'' (2015 film), a virtual reality film * '' Henry: Portrait of a Serial Killer'', a 1986 American crime film * ''Henry'' (comics), an American comic strip created in 1932 by Carl Anderson * "Henry", a song by New Riders of the Purple Sage Places Antarctica * Henry Bay, Wilkes Land Australia * Henry River (New South Wales) * Henry River (Western Australia) Canada * Henry Lake (Vancouver Island), British Columbia * Henry Lake (Halifax County), Nova Scotia * Henry Lake (District of Chester), Nova Scotia New Zealand * Lake Henry (New Zealand) * Henry River (New Zealand) United States * Henry, Illinois * Henry, Indiana * Henry, Nebraska * Henry, South Dakota * Henry Count ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tessarakonteres
''Tessarakonteres'' (, "forty-rowed"), or simply "forty", was a very large catamaran galley reportedly built in the Hellenistic period by Ptolemy IV Philopator of Ptolemaic Egypt, Egypt. It was described by a number of ancient sources, including a lost work by Callixenus of Rhodes and surviving texts by Athenaeus and Plutarch. According to these descriptions, supported by modern research by Lionel Casson, the enormous size of the vessel made it impractical and it was built only as a prestige vessel, rather than an effective warship. The name "forty" refers not to the number of oars, but to the number of rowers on each vertical "column" of oars that propelled it, and at the size described it would have been the List of world's largest wooden ships, largest ship constructed in antiquity, and probably the largest human-powered vessel ever built. Sources The "forty" was reportedly built by Ptolemy IV Philopator of Ptolemaic Egypt, Egypt in the 3rd century BC. It was first described ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptolemaic Egypt
Ptolemaic is the adjective formed from the name Ptolemy, and may refer to: Pertaining to the Ptolemaic dynasty * Ptolemaic dynasty, the Macedonian Greek dynasty that ruled Egypt founded in 305 BC by Ptolemy I Soter *Ptolemaic Kingdom Pertaining to a certain ancient writer *Relating to Ptolemy Claudius Ptolemy (; , ; ; – 160s/170s AD) was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine science, Byzant ..., 2nd-century AD geographer and astronomer/astrologer * Ptolemaic system, a geocentric model of the universe developed in detail by the astronomer Claudius Ptolemaeus See also * Ptolemy (name) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ptolemy IV Philopator
Ptolemy IV Philopator (; "Ptolemy, lover of his Father"; May/June 244 – July/August 204 BC) was the fourth pharaoh of Ptolemaic Egypt from 221 to 204 BC. Ptolemy IV was the son of Ptolemy III and Berenice II. His succession to the throne was accompanied by a wide-ranging purge of the Ptolemaic royal family, which left control of the realm's government largely in the hands of his courtiers Sosibius and Agathocles. His reign was marked by the Fourth Syrian War (219–217 BC) with the Seleucid empire, which culminated in a decisive Ptolemaic victory at the Battle of Raphia, one of the largest battles of the whole Hellenistic Age. In the final years of his rule, control over the southern portion of the country was lost to the rebel pharaoh Hugronaphor. Ptolemy IV died in mysterious circumstances in 204 BC and was succeeded by his young son Ptolemy V Epiphanes under the regency of Sosibius and Agathocles. In ancient sources, Ptolemy IV was criticised for being more interest ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
