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Austral 20 (catamaran)
Austral 20 was a catamaran produced by Charles Cunningham in Australia in the early 1960s period of experimentation. It was apparently produced in reasonable numbers by Charles himself. See also *List of multihulls *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 ... References {{Sailing vessels and rigs Catamarans ... [...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 rowing ve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fiberglass
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 GF ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...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 rowing ve ... [...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 the N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Multihulls
Types * catamaran = two symmetric hulls * proa = two asymmetric hulls, reverse-shunting (interchangeable bow/stern) * trimaran = three hulls * quadrimaran = four hulls * pentamaran = five hulls Pre-modern Austronesian * ʻalia * Amatasi * Balangay * Basnigan * Baurua * Camakau * Catamaran * Drua * Jukung * Kaep * Kalia * Karakoa * Kora kora * Lakana * Lakatoi * Ngalawa * Oruwa * Outrigger canoe * Pahi * Paraw * Paruwa * Proa * Sandeq * Takia * Tepukei * Tipairua * Tongiaki * Va'a-tele * Vaka katea * Vinta * Wa * Yathra doni Pre-modern Western * ''Tessarakonteres'' and '' Thalamegos'' (3rd century BC) * '' Simon & Jude'' or '' Invention I'' (1662) * '' Invention II'' (1662) * ''Experiment'' (1664) * '' St. Michael the Archangel'' (1684) * ''Experiment'' (1786) * ''Taurus'' (1790s) 19th century *''Jersey'' (1812) *''York'' (1813) *''Nassau'' (1814) *''Steam Battery'' (1815) *'' Double Trouble'' (1820) *'' Castaliâ'' (1874) *''Amaryllis'' (1876) *'' Calais-Douvr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
