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Encyclopedia > Hydrofoil
Look up hydrofoil in
Wiktionary, the free dictionary.
The Jetfoil Toppi is a ferry which connects Yakushima, Tanegashima Island and Kagoshima port in Japan.
The Jetfoil Toppi is a ferry which connects Yakushima, Tanegashima Island and Kagoshima port in Japan.

A hydrofoil is a boat with wing-like foils mounted on struts below the hull. As the craft increases its speed the hydrofoils develop enough lift for the boat to become foilborne - i.e. to raise the hull up and out of the water. This results in a great reduction in drag and a corresponding increase in speed. Image File history File links Broom_icon. ... This article does not cite its references or sources. ... Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ... Wikipedia does not have an article with this exact name. ... Wikipedia does not have an article with this exact name. ... The ferryboat Dongan Hills, filled with commuters, about to dock at a New York City pier, circa 1945. ... Yakushima ) is an island of about 500km² and roughly 15 000 islanders to the south of KyÅ«shÅ« in Kagoshima Prefecture, Japan. ... Yoshinobu Launch Complex (© JAXA) in Tanegashima Tanegashima (Japanese: 種子島) is an island lying to the south of Kyushu, south Japan, and is part of the Kagoshima Prefecture. ... Kagoshima (鹿児島市; -shi) the capital city of Kagoshima Prefecture at the southwest tip of the Kyushu island of Japan. ... For other uses, see Boat (disambiguation). ... This article does not cite its references or sources. ... A hull is the body or frame of a ship or boat. ... The lift force, lifting force or simply lift is a mechanical force generated by solid objects as they move through a fluid. ... An object falling through a gas or liquid experiences a force in direction opposite to its motion. ...


Early hydrofoils used U-shape foils. Hydrofoils of this type are known as surface-piercing since portions of the U-shape hydrofoils will rise above the water surface when foilborne. Modern hydrofoils use T-shape foils which are fully submerged. Fully submerged hydrofoils are less subjected to the effects of wave action, and are therefore more stable at sea and are more comfortable for the crew and passengers. This type of configuration, however, is not self-stabilizing. The angle of attack on the hydrofoils needs to be adjusted continuously in accordance to the changing conditions, a control process that is performed by computers. Failure to make the proper adjustments will result in the foilborne hull dropping violently back into the sea. In this diagram, the black arrow represents the direction of the wind. ...


The term "hydrofoil" is also used to refer to the foil itself, especially when the airfoil profile has been specifically designed for use in water (such as for a propeller blade). This article does not cite its references or sources. ... For other uses, see Propeller (disambiguation). ...

Contents

History

Forlanini hydrofoil over Lake Maggiore, 1910.
Forlanini hydrofoil over Lake Maggiore, 1910.

A March 1906 Scientific American article by American hydrofoil pioneer William E. Meacham explained the basic principle of hydrofoils. Alexander Graham Bell considered the invention of the hydroplane a very significant achievement. After reading this article Bell began to sketch concepts of what is now called a hydrofoil boat. With Casey Baldwin, he began hydrofoil experimentation in the summer of 1908. Baldwin studied the work of the Italian inventor Enrico Forlanini and began testing models based on his designs. This led him and Bell to the development of hydrofoil watercraft. During Bell's world tour of 1910-1911 he and Baldwin met with Forlanini in Italy. They had rides in the Forlanini hydrofoil boat over Lake Maggiore. Baldwin described it as being as smooth as flying. On returning to Baddeck a number of designs were tried culminating in the HD-4. Using Renault engines a top speed of 87 km/h (54 mph) was achieved, accelerating rapidly, taking wave without difficulty, steering well and showing good stability. Bell's report to the United States Navy permitted him to obtain two 260 kW (350 horsepower) engines. On September 9, 1919 the HD-4 set a world marine speed record of 114 km/h (70.86 mph). This record stood for ten years. Image File history File links Forlanini_Idroplano-Forlani_Hydrofoil_1910. ... Image File history File links Forlanini_Idroplano-Forlani_Hydrofoil_1910. ... Lake Maggiore (in Italian: Lago Maggiore or lago Verbano) is the most westerly of the three large prealpine lakes of Europe and the second largest after Lake Garda. ... Year 1910 (MCMX) was a common year starting on Saturday (link will display calendar) of the Gregorian calendar (or a common year starting on Friday [1] of the 13-day-slower Julian calendar). ... Scientific American is a popular-science magazine, published (first weekly and later monthly) since August 28, 1845, making it the oldest continuously published magazine in the United States. ... Alexander Graham Bell (3 March 1847 - 2 August 1922) was a Scottish scientist, inventor and innovator. ... Frederick Walker Baldwin also known as Casey Baldwin (January 2, 1882 - August 7, 1948) was an engineer and a hydrofoil and aviation pioneer who was the first Canadian to pilot an aircraft. ... 1908 (MCMVIII) was a leap year starting on Wednesday (link will display the full calendar). ... Enrico Forlanini (Milan, 1848-1930) was a genial italian engineer, inventor and aereonautical pioneer, well known for his works on elicopters, aircrafts, hydrofoils and dirigibles. ... Lake Maggiore (in Italian: Lago Maggiore or lago Verbano) is the most westerly of the three large prealpine lakes of Europe and the second largest after Lake Garda. ... The village of Baddeck is located in Victoria County, Nova Scotia on Cape Breton Island in the Province of Nova Scotia, Canada. ... Renault S.A. is a French vehicle manufacturer producing cars, vans, buses, tractors, and trucks. ... is the 252nd day of the year (253rd in leap years) in the Gregorian calendar. ... Year 1919 (MCMXIX) was a common year starting on Wednesday (link will display the full calendar). ...


Between 1899 and 1901, the British boat designer John I Thornycroft worked on a series of models with a stepped hull and single bow foil. In 1909 his company built a full scale 22 foot long boat, Miranda III, driven by 60 hp engine that rode on a bowfoil and flat stern. The subsequent Miranda IV was credited with 35 knots. [1]. Sir John Isaac Thornycroft (1843–1928) was the founder of the Thornycroft shipbuilding company. ...


Baron von Schertel worked on hydrofoils prior to and during World War II in Germany. After the war Schertel's team was captured by the Russians. Schertel himself went to Switzerland, where he established the Supramar company. In 1952, Supramar launched the first commercial hydrofoil, PT10, in Lake Maggiore, between Switzerland and Italy. The PT10 is of surface-piercing type, it can carry 32 passengers and travel at 35 knots. In 1968, the financier Hussain Najadi acquired the Supramar AG and expanded its operations into Japan, Hong Kong, Singapore, UK, Norway and USA. General Dynamics of the United States became its licensee, and the Pentagon awarded its first R&D naval research project in the field of supercavitation. Hitachi Shipbuilding of Osaka, Japan, was another licensee of Supramar, as well as many leading ship owners and shipyards in the OECD countries. Combatants Allied powers: China France Great Britain Soviet Union United States and others Axis powers: Germany Italy Japan and others Commanders Chiang Kai-shek Charles de Gaulle Winston Churchill Joseph Stalin Franklin Roosevelt Adolf Hitler Benito Mussolini Hideki Tōjō Casualties Military dead: 17,000,000 Civilian dead: 33,000... Year 1952 (MCMLII) was a leap year starting on Tuesday (link will display full calendar) of the Gregorian calendar. ... General Dynamics Corporation (NYSE: GD) is a defense conglomerate formed by mergers and divestitures, and as of 2006 it is the sixth largest defense contractor in the world[2]. The company has changed markedly in the post-Cold War era of defense consolidation. ... Supercavitation is the use of cavitation effects to create a large bubble of gas inside a liquid, allowing an object to travel at great speed through the liquid by being wholly enveloped by the bubble. ... Hitachi may refer to: Hitachi (train) trains in Melbourne, Australia. ...


From 1952 to 1971, Supramar designed many models of hydrofoils: PT20, PT50, PT75, PT100 and PT150. Except the PT150, all are of surface-piercing type. Over 200 of Supramar's design were built, most of them by Rodriquez in Italy. Year 1952 (MCMLII) was a leap year starting on Tuesday (link will display full calendar) of the Gregorian calendar. ... Year 1971 (MCMLXXI) was a common year starting on Friday (link will display full calendar) of the 1971 Gregorian calendar. ...


The Canadian Navy built and tested a high-speed anti-submarine hydrofoil, the HMCS Bras d'Or, in the late 1960s, but the program was cancelled due to a shift away from ASW by the Canadian Navy. The Bras d'Or was a surface-piercing type which performed well during her trials, reaching a maximum speed of 63 knots. HMCS Bastion, flagship of the Canadian Navy. ... HMCS Bras dOr (FHE 400) was a Canadian naval hydrofoil built in 1960-1967 to test the feasibility of an ocean-going hydrofoil for use in anti-submarine warfare. ... Anti-submarine warfare is a term referring to warfare directed against submarines. ...


The Soviet Union experimented extensively with hydrofoils, constructing hydrofoil river boats and ferries with streamlined designs, especially during the 1970s and 1980s. Such vessels include the Raketa (1957) type, followed by the larger Meteor type and the smaller Voskhod type. The Pride of Burgundy, a P&O Ferries car ferry on the Dover-Calais route A ferry is a boat or a ship carrying passengers, and possibly their vehicles, on a relatively short-distance, regularly-scheduled service. ... The 1970s decade refers to the years from 1970 to 1979, also called The Seventies. ... The 1980s refers to the years from 1980 to 1989. ... Raketa (Russian: ) was the first type of hydrofoil boats commercially produced in the Soviet Union. ... Year 1957 (MCMLVII) was a common year starting on Tuesday (link displays the 1957 Gregorian calendar). ... Voskhod (Russian: ) (Design 352 and Design 03521) is a type of passenger hydrofoil boats built in the Soviet Union and later in the independent Ukraine. ...


The U.S. Navy operated combat hydrofoils, such as the Pegasus class, from 1977 through 1993. These hydrofoils were fast and well armed, and were capable of sinking all but the largest surface vessels. In their narcotics interdiction role, they were a nightmare for drug runners, being very fast, and having missiles and guns to stop anything they could not catch, as well as the ability to call in air support. USN redirects here. ... The Pegasus class hydrofoils were a series of fast attack patrol boats employed by the U.S. Navy. ... Also: 1977 (album) by Ash. ... Year 1993 (MCMXCIII) was a common year starting on Friday (link will display full 1993 Gregorian calendar). ... The term narcotic, derived from the Greek word for stupor, originally referred to a variety of substances that induced sleep (such state is narcosis). ... These lollipops were found to contain heroin when inspected by the US DEA The illegal drug trade is a worldwide black market consisting of production, distribution, packaging and sale of illegal psychoactive substances. ...


The Italian Navy has used 6 hydrofoils of the Nibbio class from the late 1970s. These were armed with a 76 mm gun, two missiles and were capable of speed up to 50 knots. Marina Militare naval jack Marina Militare (the Italian Navy) is one of the four branches of the military forces of Italy. ... The 1970s decade refers to the years from 1970 to 1979, also called The Seventies. ...


The French experimental sail powered hydrofoil Hydroptère is the result of a research project that involves advanced engineering skills and technologies. In January 2007, the Hydroptère has reached a top speed of 47.2 knots. A gaff-rigged cutter flying a mainsail, staysail and genoa jib For other uses, see Sail (disambiguation). ... Experimental sailing craft Hydroptère The Hydroptère is a French designed experimental sailboat. ... A knot is a non SI unit of speed equal to one nautical mile per hour. ...


Current operation

Some operators of hydrofoil include:

  • TurboJET service, which speeds passengers across the Pearl River Delta between Hong Kong and Macau in less than an hour, with an average speed of 45 knots (83km/h), mainly using Boeing's Jetfoil. Also services Shenzhen, Guangzhou and Kowloon. Operated by Shun Tak-China Travel Ship Management Limited.
  • Cometa serice between Vladivostok and Slavyanka.
  • Meteor service between St. Petersburg, Russia and the Peterhof, a summer palace of Russian tsars.
  • Meteor service between St. Petersburg, Russia and the Kronstadt, a strongly fortified Russian seaport town, located on Kotlin Island, near the head of the Gulf of Finland. It lies thirty kilometers west of Saint Petersburg.
  • Meteor, Raketa and Voskhod hydrofoil types operate all over Volga, Don and Kama Rivers in Russia.
  • Meteor hydrofoils are operated by a number of tour operators in Croatia, mostly for packaged tours, but there are also some scheduled services to islands in Adriatic.
  • Linda Line between Tallinn and Helsinki, using two Morye's Olympias, Ukrainian built and Mercedes-Benz powered hydrofoils.
  • Hydrofoils are regularly operated on the three major Italian Lakes by branches of Ministry Of Transportation: Navigazione Lago Maggiore services routes on the Lake Maggiore between Locarno and Arona, Navigazione Lago di Como services routes on the Lake Como and Navigazione Lago di Garda services routes on the Lake Garda. Three units of the Rodriquez RHS150 type operate on each lake, for a total of nine hydrofoils. Navigazione Lago di Como still operates the last Rodriquez RHS70 in active service in Italy.
  • Former Russian hydrofoils are used in southern Italy for connection with islands of Lazio and Campania. SNAV has 5 RHS200, RHS160 and RHS150 used in the connections between Naples and the islands of Capri and Ischia.
  • Beetle service between Pusan, South Korea and Fukuoka, Japan, it services five times a day, mainly using Boeing's Jetfoil.
  • Regular hydrofoil service from Istanbul to Yalova.
  • Fast Flying Ferries operated by Connexxion, provides a regular public transport service over the North Sea Canal between Amsterdam Central Station and Velsen-Zuid in The Netherlands, using Voskhod 2M hydrofoils.
  • Hellenic Seaways operate their Flying Dolphins service over many routes in the Aegean, between the Cycladic islands, Saronic Gulf islands such as Aegina and Poros and Athens.
  • Meteor (2), Polesye (4) and Voskhod (3) hydrofoil types operate in Hungary. MAHART PassNave Ltd. operates scheduled hydrofoil liners between Budapest, Bratislava and Vienna, inland liners between Budapest and the Danube Bend, and theme cruises to Komárom, Solt, Kalocsa and Mohács.
  • Russian hydrofoils of the Kometa type operated on the Bulgarian Black Sea Coast connecting Varna, Nesebar, Burgas, Sozopol, Primorsko, and Tsarevo, and Raketa and Meteor models served the Bulgarian Danube ports between Rousse and Vidin. Both services were discontinued in the 1990s but may be reopened.
  • Vietnamese Greenline Company operates hourly shuttle service between Ho Chi Minh city, Vung Tau and Con Dao island. Hydrofoil lines using the Russian-built Meteor type also connect Hai Phong, Ha Long and Mong Cai in North Vietnam, Phan Thiet and Phu Quy island and between Rach Gia and Phu Quoc island in the South.

Turbojets are the simplest and oldest kind of general purpose jet engines. ... Map of Pearl River Delta (details) The Pearl River Delta Region (PRD) in China occupies the low-lying areas alongside the Pearl River estuary where the Pearl river flows into the South China Sea. ... The Boeing Company (NYSE: BA, TYO: 7661 ) is a major aerospace and defense corporation, originally founded by William Boeing. ... Jetfoil in Elliot Bay Seattle with Kingdome in background Boeing began adapting many systems used in jet airplanes for hydrofoils. ... Shenzhen is a sub-provincial city of Guangdong province in southern China. ... Guangzhou is the capital and the sub-provincial city of Guangdong Province in the southern part of the Peoples Republic of China. ... In modern day Hong Kong, Kowloon refers to the urban area made up of Kowloon Peninsula and New Kowloon, bordered by the Lei Yue Mun strait in the east, Mei Foo Sun Chuen and Stonecutters Island in the west, Tates Cairn and Lion Rock in the north, and... Vladivostok (Russian: ) is the administrative center of Primorsky Krai, Russia, situated close to the Russo-Sino border and North Korea. ... For other uses, see Slavyanka. ... Saint Petersburg (Russian: Санкт-Петербу́рг, English transliteration: Sankt-Peterburg), colloquially known as Питер (transliterated Piter), formerly known as Leningrad (Ленингра́д, 1924–1991) and... Peterhof: the Samson Fountain and Sea Channel Peterhof (Russian: , Petergof, originally Piterhof, Dutch for Peters Court) is a series of palaces and gardens, laid out on the orders of Peter the Great, and sometimes called the Russian Versailles. It is located about twenty kilometers west and six kilometers south... Saint Petersburg (Russian: Санкт-Петербу́рг, English transliteration: Sankt-Peterburg), colloquially known as Питер (transliterated Piter), formerly known as Leningrad (Ленингра́д, 1924–1991) and... 1888 map of the Kronstadt bay Kronstadt (Russian: ), also spelled Kronshtadt, Cronstadt (German: for Crown and Stadt for City) is a Russian seaport town, located on Kotlin Island, thirty kilometers west of Saint Petersburg near the head of the Gulf of Finland. ... For other meanings of the word Volga see Volga (disambiguation) Волга Length 3,690 km Elevation of the source 225 m Average discharge  ? m³/s Area watershed 1. ... The term Don may refer to Donald, a Western name Don (honorific), a Spanish, Portuguese and Italian title, given as a mark of respect A crime boss Don, Nord, a commune of the Nord département in northern France Don (TN), a comune in the province of Trento, in northern... Kama (Russian: ; Tatar: Çulman) is a river in Russia, the longest left tributary of the Volga. ... County Area 159. ... Location of Helsinki in Northern Europe Coordinates: , Country Province Region Uusimaa Sub-region Helsinki Charter 1550 Capital city 1812 Government  - City manager Jussi Pajunen Area  - City 187. ... This page is about the Mercedes-Benz brand of automobiles and trucks from the DaimlerChrysler automobile manufacturer. ... Lake Maggiore (in Italian: Lago Maggiore or lago Verbano) is the most westerly of the three large prealpine lakes of Europe and the second largest after Lake Garda. ... Location within Switzerland Locarno is a city located on Lake Maggiore (Lago Maggiore) in the southern Swiss canton of Ticino, close to Ascona. ... Aronas coat of arms Largo Garibaldi in winter, the castle in the background is Angera Arona, Italy is a town of about 15,000 inhabitants on Lake Maggiore, Italy. ... Lake Como (Lago di Como in Italian, also known as Lario; Latin: Larius Lacus) is a lake of glacial origin in Lombardy, Italy. ... Lake Garda (Italian Lago di Garda or Benaco) is the largest lake in Italy. ... For the football club, see S.S. Lazio Lazio (Latium in Latin) is a regione of central Italy, bordered by Tuscany, Umbria, Abruzzi, Marche, Molise, Campania and the Tyrrhenian Sea. ... For other uses, see Campania (disambiguation). ... For other uses see, Naples (disambiguation) and Napoli (disambiguation) Location of the city of Naples (red dot) within Italy. ... Capri (Italian pronunciation Cápri, usual English pronunciation Caprí) is an Italian island off the Sorrentine Peninsula. ... The island of Ischia near Naples, Italy. ... Pūsan is also a Vedic Hindu god. ... This article is about a city in Fukuoka Prefecture, Japan. ... Istanbul (Turkish: , Greek: , historically Byzantium and later Constantinople; see other names) is Turkeys most populous city, and its cultural and financial center. ... Yalova (Population: 70,118) is a city located in northwest Turkey and the capital of Yalova Province. ... Connexxion-bus in Katwijk Connexxion is the largest public transport bus company in the Netherlands, operating in the west, middle, east and far northern part of the country. ... Bangkok Skytrain. ... The canal near Velsen Map showing the canal. ... Amsterdam Centraal station at night Amsterdam Centraal (Asd) is the Centraal Station (Central Station) of Amsterdam. ... Velsen (population: 67,642 in 2004) is a municipality in the north-western Netherlands, in the province of North Holland, on both sides of the North Sea Canal. ... Motto: Je Maintiendrai (Dutch: Ik zal handhaven, English: I Shall Uphold) Anthem: Wilhelmus van Nassouwe Capital Amsterdam1 Largest city Amsterdam Official language(s) Dutch2 Government Parliamentary democracy Constitutional monarchy  - Queen Beatrix  - Prime minister Jan Peter Balkenende Independence Eighty Years War   - Declared July 26, 1581   - Recognised January 30, 1648 (by Spain... Voskhod (Russian: ) (Design 352 and Design 03521) is a type of passenger hydrofoil boats built in the Soviet Union and later in the independent Ukraine. ... Look up Aegean Sea in Wiktionary, the free dictionary. ... The Cyclades (Greek Κυκλάδες) are a Greek island group in the Aegean Sea, south-east of the mainland of Greece; and an administrative prefecture of Greece. ... The Saronic Gulf or Gulf of Aegina in Greece forms part of the Aegean Sea and defines the eastern side of the isthmus of Corinth. ... Athens is the largest and the capital city of Greece, located in the Attica periphery. ... For other uses, see Budapest (disambiguation). ... Nickname: Location of Bratislava within Slovakia Coordinates: , Country Region Districts Bratislava I-V City subdivisions 17 city boroughs Cadastral areas 20 cadastral areas First mentioned 907 Government  - Type City council  - Mayor (Primátor) Andrej ÄŽurkovský  - Headquarters Primates Palace Area [1]  - City 367. ... “Wien” redirects here. ... The Danube Bend, where two regions meet: the Transdanubian Medium Mountains lie on the left bank, while the Northern Medium Mountains on the right The Danube Bend (Hungarian Dunakanyar) is a term referring to a curve of the Danube in Hungary, close to the city of Visegrád. ... The Bulgarian Black Sea Coast covers the whole eastern border of Bulgaria. ... This article is about the city in Bulgaria. ... Nesebar (Bulgarian: Несебър, Nesebăr, though other transliterations are also used), previously known as Mesembria (Greek: Μεσημβρια, Mesimvria) and before that as Menebria, is an ancient city on the Black Sea coast of Bulgaria, located in Nesebar municipality, Burgas Province. ... Burgas (Bulgarian: , sometimes transliterated as Bourgas) is the second-largest city on the Bulgarian Black Sea Coast with population 205,821. ... Sozopol (Bulgarian: Созопол, Greek: Σωζοπολης) is a small, ancient town located 30 km south of Burgas, Bulgaria. ... Primorsko (Приморско) is a town in southeastern Bulgaria, part of Burgas Province. ... A view over Tsarevo Tsarevo (formerly Vassiliko and Michurin) is a resort and fishing town on the Bulgarian Black Sea Coast, situated on three small coves 72 km southeast of Bourgas, at the eastern foot of the Strandzha Mountain. ... This article is about the Danube River. ... Dohodno Zdanie is a theatre building which is considered a symbol of the city Rousse (also transliterated as Ruse or Russe; Bulgarian: ; formerly also Rustchuk) is the fifth-largest city in Bulgaria, with a population of 176,115. ... Vidin (Bulgarian: Видин; Romanian: Vidin, Diiu) is a town on the southern bank of the Danube in northwestern Bulgaria. ... “Saigon” redirects here. ... Vung Tau is a city in Vietnam. ... An arial view of the main island The Con Dao Islands or Con Son Islands (Vietnamese Côn Đảo or Côn SÆ¡n) are an archipelago of Ba Ria-Vung Tau Province, in southeastern Vietnam, and a district of this province. ... Haiphong (Vietnamese: Hải Phòng, Chinese 海防) is the third most populous city in Vietnam. ... Hạ Long   (also known as Hong Gai) is a capital city of Quang Ninh Province, Vietnam. ... Mong Cai is a city in northern Vietnam, on the border with China. ... The introduction of this article does not provide enough context for readers unfamiliar with the subject. ... Rạch Giá   is a capital city of Kien Giang Province, Vietnam. ...

Gallery

See also

PHM, PGH, PCH Hydrofoil Vessels PHM Patrol Missile Hydrofoil PHM-1 (PHM-1) Pegasus, formerly Delphinus (PHM-2) Hercules (PHM-3) Taurus (PHM-4) Aquila (PHM-5) Aries (PHM-6) Gemini PGH Patrol Gunboat Hydrofoil USS Flagstaff (PGH-1) (built by Grumman comparable to Tucumcari with less advanced technology) USS... A riverboat is a specialized watercraft (vessel) designed for operating on inland waterways. ... Hydroplaning and hydroplane have several meanings: With boats, planing or hydroplaning is a method by which a hull skims over the surface of the water, rather than plowing through it. ... A sailing hydrofoil is a sailboat with wing-like foils mounted under the hull. ... The sit-down hydrofoil is a type of water ski that is used for flying over the water behind a towboat. ... The Flyak lifts above the water with a hydrofoil The Flyak is a hydrofoil adaptation to the conventional kayak. ... The Hysucat (HYdrofoil SUpported CATamaran) is the registered trademark for a foil-assisted multihulled vessel, coined by the concepts inventor, South African naval architect Professor Karl-Günter Hoppe, Unistel Technologies and Stellenbosch University. ...

External links

Wikimedia Commons has media related to:
Hydrofoils

  Results from FactBites:
 
Hydrofoil Basics (642 words)
Hydrofoil is also used to refer to the boat to which the water wings are attached.
Hydrofoils lift the hull out of the water so that you only have to overcome the drag on the foils instead of all of the drag on the hull.
The hydrofoils generate lift only when they are in the water; if they leave the water, the boat will crash down onto the surface of the water (and thus submerge the foils) until the foils generate enough lift to lift it back out.
2.972 How a Hydrofoil Works (931 words)
Hydrofoil (It is a foil or wing under water used to lift the boat’s hull until it is totally outside the water.)
On the contrary, small angles of attack are used on hydrofoils to optimize the lift to drag ratio as explained before.
Every day more hydrofoils are used, and in the future, they may be the dominate method of sea traveling.
  More results at FactBites »


 

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