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Passenger-Only Fast Ferry-class Ferry
The Passenger-Only Fast Ferry ferries were built by Dakota Creek Industries in Anacortes, Washington for Washington State Ferries beginning in 1998. They are unique in the system for being propelled by water jets rather than traditional propellers. With these jets, they travel at the very high speed of 38 knots. There was opposition to the ferries due to allegations of beach erosion in Rich Passage caused by their wake. The state settled these claims for $4.5 million in 2002. In 2009, both vessels were sold to Golden Gate Ferries which uses them on the San Francisco - Marin County Marin County is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is acros ... run. The Passenger-Only Fast Ferry Class ferries include: * MV ''Golden Gate'' (Formerly MV ''Chinook'') * MV ''Napa'' (Formerly MV ''Snohomish'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dakota Creek Industries
Dakota may refer to: * Dakota people, a sub-tribe of the Sioux ** Dakota language, their language Dakota may also refer to: Places United States * Dakota, Georgia, an unincorporated community * Dakota, Illinois, a town * Dakota, Minnesota, a city * Dakota, Wisconsin, a town ** Dakota (community), Wisconsin, an unincorporated community * Dakota City, Iowa * Dakota City, Nebraska * Dakota County, Minnesota * Dakota County, Nebraska ** Dakota Formation, a North American geologic unit named for the county * The Dakotas, a collective term for the states of North and South Dakota * Dakota Territory (1861–1889) * Department of Dakota (1866–1911), an administrative district of the U.S. Army Elsewhere * Dacota, also spelt Dakota, a town in Aruba People * Dakota (given name) * Dakota (singer), a British singer * Dakota, a pseudonym of German trance music DJ and producer Markus Schulz Arts and entertainment * Dakota North (comics), Marvel Comics character * ''Dakota'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anacortes, Washington
Anacortes ( ) is a city in Skagit County, Washington, United States. The name "Anacortes" is an adaptation of the name of Anne Curtis Bowman, who was the wife of early Fidalgo Island settler Amos Bowman.Historical Timeline " Anacortes History Museum '' July 10, 2006. Retrieved on August 14, 2007. Anacortes' population was 17,637 at the time of the 2020 census. It is one of two principal cities of and included in the |
Washington State Ferries
Washington State Ferries (WSF) is a government agency that operates automobile and passenger ferry service in the U.S. state of Washington as part of the Washington State Department of Transportation. It runs ten routes serving 20 terminals located around Puget Sound and in the San Juan Islands, designated as part of the state highway system. The agency maintains the largest fleet of ferries in the United States at 21 vessels. In , the system had a ridership of about per weekday as of . , it was the largest ferry operator in the United States and the second-largest vehicular ferry system in the world. History The ferry system has its origins in the "mosquito fleet", a collection of small steamer lines serving the Puget Sound area during the later part of the nineteenth century and early part of the 20th century. By the beginning of the 1930s, two lines remained: the Puget Sound Navigation Company (known as the Black Ball Line) and the Kitsap County Transportation Company. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pump-jet
A pump-jet, hydrojet, or water jet is a marine system that produces a jet of water for propulsion. The mechanical arrangement may be a ducted propeller (axial-flow pump), a centrifugal pump, or a mixed flow pump which is a combination of both centrifugal and axial designs. The design also incorporates an intake to provide water to the pump and a nozzle to direct the flow of water out of the pump.http://www.hamiltonmarine.co.nz/includes/files_cms/file/JetTorque%2008.pdf Design A pump-jet works by having an intake (usually at the bottom of the hull) that allows water to pass underneath the vessel into the engines. Water enters the pump through this inlet. The pump can be of a centrifugal design for high speeds, or an axial flow pump for low to medium speeds. The water pressure inside the inlet is increased by the pump and forced backwards through a nozzle. With the use of a ''reversing bucket'', reverse thrust can also be achieved for faring backwards, quickly and withou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Propeller
A propeller (colloquially often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are specially shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft (ship), propeller shaft with an approximately horizontal axis. History Early developments The principle employed in using a screw propeller is derived from sculling. In sculling, a single blade is moved through an arc, from side to side taking care to keep presenting the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Erosion
Coastal erosion is the loss or displacement of land, or the long-term removal of sediment and rocks along the coastline due to the action of waves, currents, tides, wind-driven water, waterborne ice, or other impacts of storms. The landward retreat of the shoreline can be measured and described over a temporal scale of tides, seasons, and other short-term cyclic processes. Coastal erosion may be caused by hydraulic action, abrasion, impact and corrosion by wind and water, and other forces, natural or unnatural. On non-rocky coasts, coastal erosion results in rock formations in areas where the coastline contains rock layers or fracture zones with varying resistance to erosion. Softer areas become eroded much faster than harder ones, which typically result in landforms such as tunnels, bridges, columns, and pillars. Over time the coast generally evens out. The softer areas fill up with sediment eroded from hard areas, and rock formations are eroded away. Also erosion commonly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rich Passage
Rich Passage is a tidal strait in Puget Sound, allowing access to Bremerton, Washington, Sinclair Inlet, and Dyes Inlet. It separates Bainbridge Island from the Manchester area of Kitsap Peninsula. Due to the activities at Puget Sound Naval Shipyard, Rich Passage has a high volume of marine traffic. The Seattle-Bremerton ferry, part of the Washington State Ferries, travels the length of Rich Passage on its route. In addition to the many ferry trips each way per day, tugs with hawser tows and various types of naval and recreational craft all contribute to a considerable collision hazard, particularly at the sharp bend off Point Glover. Strong tidal conditions prevail in this vicinity, and deep-draft outbound vessels making the sharp turn may be unavoidably set well over to the eastern shore. Fort Ward State Park and Manchester State Park are on the Rich Passage waterfront. Rich Passage was named by Charles Wilkes during the Wilkes Expedition The United States Exploring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wake (physics)
In fluid dynamics, a wake may either be: * the region of recirculating flow immediately behind a moving or stationary blunt body, caused by viscosity, which may be accompanied by flow separation and turbulence, or * the wave pattern on the water surface downstream of an object in a flow, or produced by a moving object (e.g. a ship), caused by density differences of the fluids above and below the free surface and gravity (or surface tension). Viscosity The wake is the region of disturbed flow (often turbulent) downstream of a solid body moving through a fluid, caused by the flow of the fluid around the body. For a blunt body in subsonic external flow, for example the Apollo or Orion capsules during descent and landing, the wake is massively separated and behind the body is a reverse flow region where the flow is moving toward the body. This phenomenon is often observed in wind tunnel testing of aircraft, and is especially important when parachute systems are involved, because ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Golden Gate Ferries
Golden Gate Ferry is a commuter ferry service operated by the Golden Gate Bridge, Highway and Transportation District in San Francisco Bay, part of the Bay Area of Northern California, United States. Regular service is run to the Ferry Building in San Francisco from Larkspur, Sausalito, Tiburon, and Angel Island in Marin County, with additional service from Larkspur to Oracle Park and Chase Centert. The ferry service is funded primarily by passenger fares and Golden Gate Bridge tolls. In , Golden Gate Ferry had a ridership of , or about per weekday as of . Golden Gate Ferry is a different system from San Francisco Bay Ferry, which provides passenger ferry service between San Francisco and counties other than Marin. History Golden Gate Ferry began service between San Francisco and Sausalito on August 15, 1970 with the M.S. ''Golden Gate''. Service to Larkspur started in 1976. Service to Pacific Bell Park (now Oracle Park) started in 2000. Tiburon service began on March 6, 2017 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Francisco
San Francisco (; Spanish language, Spanish for "Francis of Assisi, Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the List of California cities by population, fourth most populous in California and List of United States cities by population, 17th most populous in the United States, with 815,201 residents as of 2021. It covers a land area of , at the end of the San Francisco Peninsula, making it the second most densely populated large U.S. city after New York City, and the County statistics of the United States, fifth most densely populated U.S. county, behind only four of the five New York City boroughs. Among the 91 U.S. cities proper with over 250,000 residents, San Francisco was ranked first by per capita income (at $160,749) and sixth by aggregate income as of 2021. Colloquial nicknames for San Francisco include ''SF'', ''San Fran'', ''The '', ''Frisco'', and '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marin County
Marin County is a county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 census, the population was 262,231. Its county seat and largest city is San Rafael. Marin County is across the Golden Gate Bridge from San Francisco, and is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area. Marin County's natural sites include the Muir Woods redwood forest, the Marin Headlands, Stinson Beach, the Point Reyes National Seashore, and Mount Tamalpais. As of 2019, Marin County had the sixth highest income per capita of all U.S. counties, at $141,735. The county is governed by the Marin County Board of Supervisors. The Marin County Civic Center was designed by Frank Lloyd Wright and draws thousands of visitors a year to guided tours of its arch and atrium design. In 1994, a new county jail facility was embedded into the hillside nearby. The United States' oldest cross country running even ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MV Golden Gate
MV ''Golden Gate'' (previously MV ''Chinook'') is a passenger-only fast ferry operated by Golden Gate Ferries. The vessel is the second passenger ferry to hold the name and was purchased from Washington State Ferries by the Golden Gate Bridge, Highway and Transportation District (along with ) and entered service with Golden Gate Transit in May 2011 after a complete refit that began in late 2009.MV Napa Arrives Golden Gate Transportation District In 1999 the vessel was built to offer 30 minute ferry service from Bremerton to Seattle, a few years later service ended because of beach possible erosion along Puget sound's . As the ''Chinook'', the ferry had previously been |
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