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Grinder (sailing Position)
A grinder is a crew member on a yacht whose duties include operating manual winches (called "coffee grinders") that raise and trim the sails and move the boom. It is a physically demanding role with a significant impact on a racing yacht's overall performance. The AC50 class yachts used in the America's Cup competition have four positions (on each side) for grinders. These must be continuously operated to generate the hydraulic pressure needed by the yacht's controls. Until 2017, the machinery was arm operated winches. However, in 2017 Team New Zealand Team New Zealand or TNZ is a sailing team based in Auckland, New Zealand representing the Royal New Zealand Yacht Squadron. Team New Zealand became a household name in their home country following their consecutive wins in the America's Cup in ... changed their grinding system to pedal operated positions (cyclors) similar to exercise bikes. This change reportedly gained a 40% increase in power delivered to the hydraulic syst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AC50
The AC50 (defined in the America's Cup rules as AC Class yacht, or ACC) was a wingsail catamaran development rule that governed the construction of the yachts used in the 2017 Louis Vuitton Cup and the 2017 America's Cup. Like the larger AC72s used in the 2013 America's Cup, AC50s used L-shaped daggerboard stabilizers as well as T-shaped rudder elevators that were able to generate enough lift to allow the boats to exit displacement mode in winds in excess of 7kt. Prototype versions of crossbeams, wingsails, appendages, as well as steering and trimming systems had been tested by all syndicates on AC45 platforms as surrogate yachts before building their AC50. The class allowed hydraulic control of the wingsails and appendages. Motors and computer automation was banned in the class. Each challenger team was only allowed to build one AC50 for competition and only six boats were built. The class achieved a maximum peak speed of over the water, recorded by ACRM telemetry aboard Sweden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
America's Cup
The America's Cup, informally known as the Auld Mug, is a trophy awarded in the sport of sailing. It is the oldest international competition still operating in any sport. America's Cup match races are held between two sailing yachts: one from the yacht club that currently holds the trophy (known as the defender) and the other from the yacht club that is challenging for the cup (the challenger). Matches are held several years apart on dates agreed between the defender and the challenger. There is no fixed schedule, but the races have generally been held every three to four years. The most recent America's Cup match took place in March 2021. The cup was originally known as the 'R.Y.S. £100 Cup', awarded in 1851 by the British Royal Yacht Squadron for a race around the Isle of Wight in the United Kingdom. The winning yacht was a schooner called '' America'', owned by a syndicate of members from the New York Yacht Club (NYYC). In 1857, the syndicate permanently donated the tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Pressure
Hydraulics (from Greek: Υδραυλική) is a technology and applied science using engineering, chemistry, and other sciences involving the mechanical properties and use of liquids. At a very basic level, hydraulics is the liquid counterpart of pneumatics, which concerns gases. Fluid mechanics provides the theoretical foundation for hydraulics, which focuses on the applied engineering using the properties of fluids. In its fluid power applications, hydraulics is used for the generation, control, and transmission of power by the use of pressurized liquids. Hydraulic topics range through some parts of science and most of engineering modules, and cover concepts such as pipe flow, dam design, fluidics and fluid control circuitry. The principles of hydraulics are in use naturally in the human body within the vascular system and erectile tissue. Free surface hydraulics is the branch of hydraulics dealing with free surface flow, such as occurring in rivers, canals, lakes, es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Team New Zealand
Team New Zealand or TNZ is a sailing team based in Auckland, New Zealand representing the Royal New Zealand Yacht Squadron. Team New Zealand became a household name in their home country following their consecutive wins in the America's Cup in 1995 and 2000, under the leadership of Sir Peter Blake, when becoming the first team from a country outside the United States to win and successfully defend the America's Cup. Branded as Emirates Team New Zealand at America's Cup competitions since 2007, they won the 2017 America's Cup, skippered by Glenn Ashby. They are the winner of the 2021 America's Cup. History Three challenges were launched before the founding of Team New Zealand, all of these backed by Michael Fay. New Zealand Challenge competed in the 1987 Louis Vuitton Cup, the 1988 America's Cup and the 1992 Louis Vuitton Cup. Founding Following the 1992 competition, Michael Fay withdrew from backing the New Zealand challenges and a new effort under the leadership of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marine Occupations
Marine is an adjective meaning of or pertaining to the sea or ocean. Marine or marines may refer to: Ocean * Maritime (other) * Marine art * Marine biology * Marine debris * Marine habitats * Marine life * Marine pollution Military * Marines, a naval-based infantry force ** United States Marine Corps ** Royal Marines of the UK ** Brazilian Marine Corps ** Spanish Marine Infantry ** Fusiliers marins (France) ** Indonesian Marine Corps ** Republic of China Marine Corps ** Republic of Korea Marine Corps ** Royal Thai Marine Corps *"Marine" also means "navy" in several languages: ** Austro-Hungarian Navy () ** Belgian Navy (, , ) ** Royal Canadian Navy () *** Provincial Marine (1796–1910), a predecessor to the Royal Canadian Navy ** Navy of the Democratic Republic of the Congo () ** Royal Danish Navy () ** Finnish Navy (, ) ** French Navy () ** Gabonese Navy () ** German Navy () ** Royal Moroccan Navy () ** Royal Netherlands Navy () ** Swedish Navy () Places * M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nautical Terminology
This glossary of nautical terms is an alphabetical listing of terms and expressions connected with ships, shipping, seamanship and navigation on water (mostly though not necessarily on the sea). Some remain current, while many date from the 17th to 19th centuries. The word nautical derives from the Latin ''nauticus'', from Greek ''nautikos'', from ''nautēs'': "sailor", from ''naus'': "ship". Further information on nautical terminology may also be found at Nautical metaphors in English, and additional military terms are listed in the Multiservice tactical brevity code article. Terms used in other fields associated with bodies of water can be found at Glossary of fishery terms, Glossary of underwater diving terminology, Glossary of rowing terms, and Glossary of meteorology. This glossary is split into two articles: * terms starting with the letters A to L are at Glossary of nautical terms (A-L) * terms starting with the letters M to Z are at Glossary of nautical terms (M-Z). __ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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