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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 Hydraulics () 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 concer ... needed by the yacht's controls. Until 2017, the machinery was arm operated winches. However, in 2017 Team New Zealand 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 sy ... [...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 was replaced with the monohull AC75 after the 2017 America's Cup. The class achieved a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
America's Cup
The America's Cup is a sailing competition and 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). The winner is awarded the America's Cup trophy, informally known as the Auld Mug. 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. Any yacht club that meets the requirements specified in the Deed of Gift of the America's Cup has the right to challenge the yacht club that currently holds the cup. If the challenging club wins the match, it gains stewardship of the cup. From the first defence of the cup in 1870 until the twentieth defence in 1967, there was always only one challenger. In 1970 multiple ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydraulic Pressure
Hydraulics () 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 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 they 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, estuaries, and seas. Its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Team New Zealand
Team New Zealand or TNZ is a Sailing (sport), sailing team based in Auckland, New Zealand, representing the Royal New Zealand Yacht Squadron. The team has been branded as Emirates (airline), Emirates Team New Zealand at America's Cup competitions since 2007. Team New Zealand became a Brand awareness, household name in their home country following their consecutive wins in the America's Cup in 1995 and 2000, under the leadership of Peter Blake (sailor), Sir Peter Blake, when becoming the first team from a country outside the United States to win and successfully defend the America's Cup. Team New Zealand won the 2017 America's Cup, skippered by Glenn Ashby. They successfully defended the title at the America's Cup in 2021 America's Cup, 2021 and 2024 America's Cup, 2024. They are also the winners of the Louis Vuitton Cup in 1995 Louis Vuitton Cup, 1995, 2007 Louis Vuitton Cup, 2007, 2013 Louis Vuitton Cup, 2013, and 2017 Louis Vuitton Cup, 2017. History Three challenges w ... [...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 current power * Marine debris * Marine energy * 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 () ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
