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HD-4
''HD-4'' or ''Hydrodome number 4'' was an early research hydrofoil watercraft developed by the scientist Alexander Graham Bell. It was designed and built at the Bell Boatyard on Bell's Beinn Bhreagh estate near Baddeck, Nova Scotia. In 1919, it set a world marine speed record of . History The March 1906 ''Scientific American'' article by American pioneer William E. Meacham, explained the basic principle of hydrofoils and hydroplanes. Bell considered the invention of the hydroplane a very significant achievement. Baldwin studied the work of the Italian inventor Enrico Forlanini and began testing models based on his designs, which led them to the development of hydrofoil watercraft. Based on information gained from that article he began to sketch concepts of what is now called a hydrofoil boat. Bell, with his chief engineer Casey Baldwin, began hydrofoil experiments in the summer of 1908. During Bell's world tour of 1910–1911, Bell and Baldwin met with Forlanini in Italy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Graham Bell
Alexander Graham Bell (, born Alexander Bell; March 3, 1847 – August 2, 1922) was a Scottish-born inventor, scientist and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885. Bell's father, grandfather, and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf; profoundly influencing Bell's life's work. His research on hearing and speech further led him to experiment with hearing devices which eventually culminated in Bell being awarded the first U.S. patent for the telephone, on March 7, 1876. Bell considered his invention an intrusion on his real work as a scientist and refused to have a telephone in his study. Many other inventions marked Bell's later life, including groundbreaking work in optical telecommunications, hydrofoils, and aeronautics. Bell also had a strong influence on the National Geographic Society and it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrofoil
A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds. Description The hydrofoil usually consists of a winglike structure mounted on struts below the hull, or across the keels of a catamaran in a variety of boats (see illustration). As a hydrofoil-equipped watercraft increases in speed, the hydrofoil elements below the hull(s) develop enough lift to raise the hull out of the water, which greatly reduces hull drag. This provides a corresponding increase in speed and fuel efficiency. Wider adoption of hydrofoils is prevented by the increased complexity of building and maintaining them. Hydrofoils are generally prohibitively more expensive than conventional watercraft above a certain disp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrofoils
A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds. Description The hydrofoil usually consists of a winglike structure mounted on struts below the hull, or across the keels of a catamaran in a variety of boats (see illustration). As a hydrofoil-equipped watercraft increases in speed, the hydrofoil elements below the hull(s) develop enough lift to raise the hull out of the water, which greatly reduces hull drag. This provides a corresponding increase in speed and fuel efficiency. Wider adoption of hydrofoils is prevented by the increased complexity of building and maintaining them. Hydrofoils are generally prohibitively more expensive than conventional watercraft above a certain displa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liberty L-12
The Liberty L-12 is an American water-cooled 45° V-12 aircraft engine displacing and making designed for a high power-to-weight ratio and ease of mass production. It saw wide use in aero applications, and, once marinized, in marine use both in racing and runabout boats. A single bank 6-cylinder version, the Liberty L-6, and V-8, the Liberty L-8, were derived from the Liberty L-12. It was succeeded by the Packard 1A-2500. Development In May 1917, a month after the United States had declared war on Germany, a federal task force known as the Aircraft Production Board summoned two top engine designers, Jesse G. Vincent (of the Packard Motor Car Company of Detroit) and Elbert J. Hall (of the Hall-Scott Motor Co. in Berkeley, California), to Washington, D.C. They were given the task of designing as rapidly as possible an aircraft engine that would rival if not surpass those of Great Britain, France, and Germany. The Board specified that the engine would have a high power-t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexander Graham Bell National Historic Site
Alexander Graham Bell National Historic Site is a property in Baddeck, Cape Breton, Nova Scotia, Canada, overlooking the Bras d'Or Lakes. The site is a unit of Parks Canada, the national park system, and includes the Alexander Graham Bell National Historic Site, which contains the largest repository of artifacts and documents from Bell's years of experimental work in Baddeck. This site was designated a National Historic Site in 1952. Alexander Graham Bell National Historic Site The site features artifacts donated in 1955 from the Bell family's personal museum, located in the Kite House at Beinn Bhreagh. The site also features memorabilia associated with Bell's experiments, including: the original hull of a hydrofoil boat, the HD-4, that set a world marine speed record in Baddeck by reaching speeds of over 112 km/h (over 70 mph) in 1919; a full-scale replica of that boat; the AEA Silver Dart which in 1909 J.A.D. MacCurdy piloted up into the air over the ice of Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell Boatyard
The Bell Boatyard was a boatbuilding facility which operated as part of Alexander Graham Bell's laboratories in Baddeck, Nova Scotia from 1885 to 1928. The boatyard built experimental craft, lifeboats and yachts during the first part of the twentieth century. The Bell yard was notable for its dual focus on both experimental and traditional boats and for its employment of large numbers of female boatbuilders. Creation The laboratories and boatyard were located on the large estate that Dr. Bell acquired in 1885. Dr. Bell bought a large portion of a peninsula that jets out into the Baddeck Bay and named the estate Beinn Bhreagh. The 600-acre estate was originally built as a summer residence, but was later used year-round by the Bell family. From the beginning the estate including laboratory facilities and a boathouse which grew in size to match Bell's interests and later wartime needs. The laboratories located on Beinn Bhreagh were used for various experiments Dr. Bell created. These ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beinn Bhreagh, Nova Scotia
( ) is the name of the former estate of Alexander Graham Bell, in Victoria County, Nova Scotia. It refers to a peninsula jutting into Cape Breton Island's scenic Bras d'Or Lake approximately southeast of the village of Baddeck, forming the southeastern shore of Baddeck Bay. The peninsula was known to the Mi'kmaq as , roughly translated to "Red Head" due to the reddish sandstone rocks at the tip of the peninsula. The name —meaning "Beautiful Mountain" in Scottish Gaelic—is thought to have been given to the peninsula by Bell, who purchased approximately to form the estate in the late 1880s. In July 2005, the Nova Scotia Civic Address Project review changed the status of from a "generic locality" to a "community". Alexander Graham Bell Wealthy from his successful invention and marketing of the telephone, inventor Alexander Graham Bell and his wife, Mabel, undertook a cruising vacation in 1885 along the coast of eastern North America with their intended destinati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baddeck, Nova Scotia
Baddeck () is a village in northeastern Nova Scotia, Canada. It is situated in the centre of Cape Breton, approximately 6 km east of where the Baddeck River empties into Bras d'Or Lake. Local governance is provided by the rural municipality of Victoria County, with an elected village council having limited authority. The population was 826 in the 2016 Canadian census. It was first settled by United Empire Loyalists in the late 18th century, and prospered in the 19th century with mining, milling, and shipbuilding. Today the economy depends on services, cultural activities, and tourism. Toponymy Baddeck is one of the few Nova Scotian Mi'kmaq language place names that was not replaced by colonial settlers. The French called it La Bedeque, while Canadian Gaelic speakers called it Badaig. Its original meaning has been variously reported as "reversing flow", "place with island near" (a likely reference to Kidston Island), "a portion of food set aside for someone", or "a sultry p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Canadian Encyclopedia
''The Canadian Encyclopedia'' (TCE; french: L'Encyclopédie canadienne) is the national encyclopedia of Canada, published online by the Toronto-based historical organization Historica Canada, with the support of Canadian Heritage. Available for free online in both English and French, ''The Canadian Encyclopedia'' includes more than 19,500 articles in both languages on numerous subjects including history, popular culture, events, people, places, politics, arts, First Nations, sports and science. The website also provides access to the ''Encyclopedia of Music in Canada'', the ''Canadian Encyclopedia Junior Edition'', ''Maclean's'' magazine articles, and ''Timelines of Canadian History''. , over 700,000 volumes of the print version of ''TCE'' have been sold and over 6 million people visit ''TCE'''s website yearly. History Background While attempts had been made to compile encyclopedic material on aspects of Canada, ''Canada: An Encyclopaedia of the Country'' (1898–1900) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HMCS Bras D'Or (FHE 400)
HMCS ''Bras d'Or'' (FHE 400) was a hydrofoil that served in the Canadian Forces from 1968 to 1971. During sea trials in 1969, the vessel exceeded , making her the fastest unarmed warship in the world at the time. The vessel was originally built from 1960 to 1967 for the Royal Canadian Navy, as a project for the testing of anti-submarine warfare technology on an ocean-going hydrofoil. The RCN was replaced on 1 February 1968 by the unified Canadian Armed Forces, and ''Bras d'Or'' was commissioned into that service several months later. Changes in priorities and cost overruns later led to the project's cancellation. ''Bras d'Or'' was named in honour of Bras d'Or Lake on Nova Scotia's Cape Breton Island, where inventor Alexander Graham Bell performed hydrofoil experiments in the early 20th century near his estate and new laboratory at Beinn Bhreagh, Nova Scotia, Beinn Bhreagh, setting the world watercraft speed record in the process. In 1909 the lake was also the historic site of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bras D'Or (R-103)
''Bras d'Or'' (R-103) was a small experimental hydrofoil built for the Royal Canadian Navy (RCN) during the 1950s. It led to the development of in the late 1960s. Built by Saunders-Roe from either a Saunder-Roe motor boat or Vosper PT boat hull, the ''Bras d'Or'' was built based on the prototype R-101 in service with the Royal Navy.Boileau, p.49 Launched in 1957, it underwent trials off Wales in May and arrived in Canada in July.Boileau, p.53 Acquired by the Royal Canadian Navy, it was never commissioned as a warship. ''Bras d'Or'' (R-103) was renamed ''Baddeck'' in 1962 as the name "Bras d'Or" was to be provided to . ''Baddeck'' retired from the Canadian Forces in 1973 and was later acquired by the Canada Science and Technology Museum in Ottawa, Ontario Ontario ( ; ) is one of the thirteen provinces and territories of Canada.Ontario is located in the geographic eastern half of Canada, but it has historically and politically been considered to be part of Central Canad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
