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92-591: The International class sloop was created by American yachtsman, Cornelius Shields , as he sought to create a new one design yacht for the Amorita Cup series of team races between Bermuda and Long Island Sound . While in Bermuda one spring, he looked at a Bermudian Six Metre , the Saga , owned by Kenneth and Eldon Trimingham , and knew instantly that he had seen the prototype of a racing class boat. Inspired by

184-617: A Ramsar Wetland of International Importance on February 2, 2013, and the Port of Oakland on the bay is one of the busiest cargo ports on the west coast. The bay covers somewhere between 400 and 1,600 square miles (1,000–4,000 km ), depending on which sub-bays (such as San Pablo Bay), estuaries, wetlands , and so on are included in the measurement. The main part of the bay measures three to twelve miles (5–19 km) wide east-to-west and somewhere between 48 miles (77 km) and 60 miles (97 km) north-to-south. San Francisco Bay

276-678: A development class , the classic example being America's Cup 12-metre class , or to the box rule used, for example, in the TP 52 class. A further category, the formula based class setup, is sometimes confused with one design. The Mini Transat 6.50 , the Volvo Open 70 monohull, the large ORMA trimaran, and the Formula 18 racing beach catamaran are the exponents of the formula approach. Class-legal boats race each other without any handicap calculations in both setups. However, under one design

368-438: A racing class that consists of just one model or design of a sailboat . In one-design racing, the first boat to finish wins the race. This is contrasted with handicap racing, where time is added or subtracted from the finishing times based on design factors and mathematical formulas to determine the winner. In between One-design and handicap racing, a number of other approaches exist. One-design classes can be contrasted with

460-405: A racing method which may be adopted in sports using complex equipment, whereby all vehicles have identical or very similar designs or models, avoiding the need for a handicap system. One-make racing series (also known as spec racing series) are racing series in which all competitors race with identical or very similar vehicles from the same manufacturer and suppliers. Typically, this means

552-571: A World Championship (the venue of which rotates between the fleets), a North American Championship, Bermuda Race Week, the Nantucket Invitational, a European Championship and occasional Team-racing championships hosted by individual fleets. Yachts from the International One Design class are used for the annual Bermuda Gold Cup as part of the professional World Match Racing Circuit. The current (2024) World Champion

644-465: A general rule, the tolerances are strictest in smaller boats like dinghy classes and small keelboats. In some cases the tolerances are specified in a confidential Building Specification and often everything is designed and produced at the same factory or a very few factories. Examples are the Laser , Melges 24 , and several small keelboats designed by Nathanael Greene Herreshoff, such as the 12½ . In others

736-1022: A hotspot for polybrominated diphenyl ether ( PBDE ) flame retardants used to make upholstered furniture and infant care items less flammable. PBDEs have been largely phased out and replaced with alternative phosphate flame retardants. A 2019 San Francisco Estuary Institute (SFEI) study assayed a wide range of these newer flame retardant chemicals in Bay waters, bivalve California mussels ( Mytilus californianus ), and harbor seals ( Phoca vitulina ) which haul out in Corkscrew Slough on Bair Island in San Mateo County , with phosphate flame retardant contaminants such as tris(1,3-dichloro-2-propyl)phosphate (TDCPP) and triphenyl phosphate (TPhP) found at levels comparable to thresholds for aquatic toxicity. Thousands of man-made chemicals are found in Bay water, sediment, and organisms. For many of these, there

828-523: A lifting boiler plate capable of being lifted. The boat was called The Water Wag . The idea was quickly adopted by sailors in Ireland, England, India and South America. The Water Wag Club still thrives in Dun Laoghaire, Co. Dublin. The Solent One Design Class was one of the earliest one-design classes formed after discussions took place in 1893 and subsequent years. It quickly became popular, and

920-617: A major seaport . The Port of Oakland is one of the largest cargo ports in the United States, while the Port of Richmond and the Port of San Francisco provide smaller services. An additional crossing south of the Bay Bridge has long been proposed. San Francisco Bay is popular for sailors (boats, as well as windsurfing and kitesurfing ), due to consistent strong westerly/northwesterly thermally-generated winds – Beaufort force 6 (15–25 knots; 17–29 mph; 8–13 m/s)

1012-730: A more joyous day on the water. The wind was from the northeast, light in the morning and then stronger at mid-day, so we had a chance to try her out under a variety of conditions. The boat was a delight to handle, and balanced perfectly. I felt great satisfaction at this -- the planning and hope and care hadn't been in vain." The Internationals quickly spread. Bermuda took delivery of seven in January 1937. The next year's fleets were established in Marblehead, Massachusetts and Northeast Harbor, Maine , followed by fleets in Norway and Cowes . During

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1104-498: A one-design version of Saga. He negotiated with Aas to reduce the size of the Saga's design to produce a 33-foot (10 m) racer. The resulting design was smaller than the Saga, with less displacement, but greater beam of 6 ft 9 in (2.06 m). It measured 21 ft 5 in (6.53 m) in at the waterline, had a draft of 5 ft 4 in (1.63 m), and displaced 7,120 lb (3,230 kg). The mast

1196-560: A widespread distribution in the bay, with uptake in the bay's phytoplankton and contamination of its sportfish. In January 1971, two Standard Oil tankers collided in the bay, creating an 800,000-U.S.-gallon (3,000,000-liter) oil spill disaster , which spurred environmental protection of the bay. In November 2007, a ship named COSCO Busan collided with the San Francisco–Oakland Bay Bridge and spilled over 58,000 U.S. gallons (220,000 liters) of bunker fuel , creating

1288-509: A “true” spec series. The same applies to the Super Formula series. All teams compete in nearly identical Dallara SF23 models, but use engines supplied from Honda and Toyota , preventing it from being a true spec series. There are two primary methods of competition in sailboat racing : One-design and handicap racing (e.g. Portsmouth Yardstick , Performance Handicap Racing Fleet and Leading Yard Stick ). One design refers to

1380-565: Is Jonathan Farrar, representing the Fishers Island Fleet. Since its founding, the International Class has remained committed to the tradition of testing sailing skills in equally equipped yachts. The Class' extensive one-design rules endeavor to ensure that the hulls, rigs and sails of the racing yachts are near equal as possible. All International owners agree to honor this Class principle. With any racing yacht,

1472-597: Is an area of sand dunes now covered by the ocean. The indigenous inhabitants of the San Francisco Bay are Ohlone . The first European to see San Francisco Bay is likely N. de Morena who was left at New Albion at Drakes Bay in Marin County, California , by Sir Francis Drake in 1579 and then walked to Mexico. The first recorded European discovery of San Francisco Bay was on November 4, 1769, when Spanish explorer Gaspar de Portolá , unable to find

1564-563: Is common on summer afternoons – and protection from large open ocean swells. Yachting and yacht racing are popular pastimes and the San Francisco Bay Area is home to many of the world's top sailors. A shoreline bicycle and pedestrian trail known as the San Francisco Bay Trail encircles the edge of the bay. The San Francisco Bay Area Water Trail , a growing network of launching and landing sites around

1656-433: Is little or no data on their impacts on the environment or human health, and they are not regulated by state or federal law. These are often referred to as "contaminants of emerging concern." The San Francisco Estuary Institute has studied these chemicals in the Bay since 2001. Scientists have identified the following most likely to have a negative impact on Bay wildlife: San Francisco Bay's profile changed dramatically in

1748-499: Is permitted. Usually fleets adopt a sail purchase schedule that only requires the purchase of one sail per year. The result of this unique sail purchase program is a racing fleet of equally equipped boats that are maintained at a low cost to the individual owners. To further equalize the playing field during International and Interfleet regattas, a change-boat series is presented by the host fleet. Competitors do not bring their own boats to such an event, rather they are invited to sail in

1840-562: Is pierced by a tunnel linking the east and west spans of the San Francisco–Oakland Bay Bridge . Attached to the north is the artificial and flat Treasure Island , site of the 1939 Golden Gate International Exposition . From the Second World War until the 1990s, both islands served as military bases and are now being redeveloped. Isolated in the center of the bay is Alcatraz , the site of the famous federal penitentiary. The federal prison on Alcatraz Island no longer functions, but

1932-609: Is shipped throughout the Western United States to bakeries, canneries, fisheries, cheese makers and other food industries and used to de-ice winter highways, clean kidney dialysis machines, for animal nutrition, and in many industries. Many companies have produced salt in the bay, with the Leslie Salt Company the largest private land owner in the Bay Area in the 1940s. Low-salinity salt ponds mirror

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2024-661: Is the second-largest estuary on the Pacific coast of the Americas, following the Salish Sea in Washington State and British Columbia, Canada. The bay was navigable as far south as San Jose until the 1850s, when hydraulic mining released massive amounts of sediment from the rivers that settled in those parts of the bay that had little or no current. Later, wetlands and inlets were deliberately filled in, reducing

2116-572: Is usually shown by his final standing in a contest. What could be more indicative of this when pilots are flying identical sailplanes with identical performance. One-design competition is the sure test of soaring skill." Other one-design gliders have included those made in Russia by Aviastroitel , in Poland by Warsztaty Szybowcowe Orlik , and Germany, where for example the DFS Olympia Meise

2208-873: The Dumbarton Rail Bridge , the first bridge crossing San Francisco Bay. The first automobile crossing was the Dumbarton Bridge , completed in January 1927. More crossings were later constructed – the Carquinez Bridge in May 1927, the San Francisco–Oakland Bay Bridge in 1936, the Golden Gate Bridge in 1937, the Richmond–San Rafael Bridge in 1956, and the San Mateo–Hayward Bridge in 1967. During

2300-633: The Kamchatka Peninsula and Japan. Recent genetic studies show that there is a local stock from San Francisco to the Russian River and that eastern Pacific coastal populations rarely migrate far, unlike western Atlantic Harbor porpoise. The common bottlenose dolphin ( Tursiops truncatus ) has been extending its current range northwards from the Southern California Bight . The first coastal bottlenose dolphin in

2392-474: The Port of Monterey , continued north close to what is now Pacifica and reached the summit of the 1,200-foot-high (370 m) Sweeney Ridge , now marked as the place where he first sighted San Francisco Bay. Portolá and his party did not realize what they had discovered, thinking they had arrived at a large arm of what is now called Drakes Bay . At the time, Drakes Bay went by the name Bahia de San Francisco and thus both bodies of water became associated with

2484-521: The Sacramento–San Joaquin River Delta remain perhaps California's most important ecological habitats . California's Dungeness crab , California halibut , and Pacific salmon fisheries rely on the bay as a nursery. The few remaining salt marshes now represent most of California's remaining salt marsh, supporting a number of endangered species and providing key ecosystem services such as filtering pollutants and sediments from

2576-782: The Sierra Nevada mountains, flow into Suisun Bay , which then travels through the Carquinez Strait to meet with the Napa River at the entrance to San Pablo Bay , which connects at its south end to San Francisco Bay. It then connects to the Pacific Ocean via the Golden Gate strait. However, this entire group of interconnected bays is often called the San Francisco Bay . The bay was designated

2668-609: The Wisconsin Glaciation , between 15,000 and about 10,000 years ago, the basin which is now filled by the San Francisco Bay was a large river valley with small hills, channeling the Sacramento River through the Golden Gate Strait into the ocean. When the great ice sheets began to melt, around 11,000 years ago, the sea level started to rise rapidly, by about 1 inch per year. Melting glaciers in

2760-435: The " Bay fill and depth profile " section. ) There are five large islands in San Francisco Bay. Alameda , the largest island, was created when a shipping lane was cut to form the Port of Oakland in 1901. It is now a suburban community. Angel Island was known as " Ellis Island West" because it served as the entry point for immigrants from East Asia. It is now a state park accessible by ferry. Mountainous Yerba Buena Island

2852-555: The 1970s with the introduction of laminate construction using fibre-reinforced plastic (FRP) and mold building technology. This process allowed the mass production of identical hulls of virtually any size at a lower price. The one-design design idea was created by Thomas Middleton of the Shankill Corinthian Club located 10 miles (16 km) south of Dublin, Ireland in 1887. He proposed a class of double ended open dinghies of simple clincher construction in pine with

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2944-565: The 1989 earthquake, was built on fill that had been placed there for the Panama-Pacific International Exposition , although liquefaction did not occur on a large scale. In the 1990s, San Francisco International Airport proposed filling in hundreds more acres to extend its overcrowded international runways in exchange for purchasing other parts of the bay and converting them back to wetlands. The idea was, and remains, controversial. ( For further details, see

3036-521: The 20+ approved builders on four continents being of identical speed, for example at the 2017 World Championship. In medium- to large-sized boat classes, One design would refer to conformance to a standard specification , with the possibility of alterations being allowed as long as they remained within certain tolerances. Examples of this are the Dragon , J/24 , Etchells , H-boat and the Farr 40 . After

3128-552: The 20th century, the bay was subject to the 1940s Reber Plan , which would have filled in parts of the bay in order to increase industrial activity along the waterfront. In 1959, the United States Army Corps of Engineers released a report stating that if current infill trends continued, the bay would be as big as a shipping channel by 2020. This news created the Save the Bay movement in 1960, which mobilized to stop

3220-547: The Bay Area in recent times was spotted in 1983 off the San Mateo County coast in 1983. In 2001, bottlenose dolphins were first spotted east of the Golden Gate Bridge and confirmed by photographic evidence in 2007. Zooarcheological remains of bottlenose dolphins indicated that bottlenose dolphins inhabited San Francisco Bay in prehistoric times until at least 700 years before present, and dolphin skulls dredged from

3312-764: The National Register of Historic Vessels of the United Kingdom. She is kept in Lymington where she is still racing and winning on the Solent. Conversely the Howth 17 , designed just four years later by Sir Walter H. Boyd of Howth , Co. Dublin is still actively raced and is the oldest one-design racing keelboat still sailing as designed. While fifteen of the current fleet were built from 1898 to 1914, new boats can still be added, most recently in 2017. As

3404-476: The Port of Oakland. Some six million cubic yards (160 million cubic feet; 4.6 million cubic meters) of mud from the dredging was deposited at the western edge of Middle Harbor Shoreline Park to become a 188-acre (0.294 sq mi; 0.76 km ) shallow-water wetlands habitat for marine and shore life. Further dredging followed in 2011, to maintain the navigation channel. This dredging enabled

3496-607: The Russian Timofei Nikitich Tarakanov , these hunting raids probably wiped out sea otters in the bay. Thousands of sea otter skins were taken to Sitka, then Guangzhou (Canton), China, where they commanded a high price. The United States seized the region from Mexico during the Mexican–American War (1846–1848). On February 2, 1848, the Mexican province of Alta California was annexed to

3588-529: The Sierra Nevada washed huge amounts of sediment down the Sacramento and San Joaquin rivers, which accumulated on the shores of the bay, forming huge mudflats and marshes that supported local wildlife. By 5000 BC the sea level rose 300 feet (90 m), filling the valley with water from the Pacific. The Farallon Islands are what used to be hills along the old coastline, and Potato Patch Shoal

3680-539: The United States with the signing of the Treaty of Guadalupe Hidalgo . A year and a half later, California requested to join the United States on December 3, 1849, and was accepted as the 31st State of the Union on September 9, 1850. In 1921, a tablet was dedicated by a group of men in downtown San Francisco, marking the site of the original shoreline. The tablet reads: "This tablet marks the shore line of San Francisco Bay at

3772-576: The advantages of one-design to the sport of competitive glider racing . The most successful of these has been the Schweizer 1–26 class with 700 aircraft completed and flown between 1954 and 1981. Schweizer Aircraft principal Paul A Schweizer was a proponent of the One-design concept. He intended the company's 1–26 to be the aircraft to establish a one-design class in the United States. He wrote: "The true measure of pilot ability and experience

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3864-431: The arrival of Europeans. Indigenous peoples used canoes to fish and clam along the shoreline. Sailing ships enabled transportation between the bay and other parts of the world—and served as ferries and freighters within the bay and between the bay and inland ports, such as Sacramento and Stockton. These were gradually replaced by steam-powered vessels starting in the late 19th century. Several shipyards were established around

3956-628: The arrival of the largest container ship ever to enter the San Francisco Bay, the MSC Fabiola . Bay pilots trained for the visit on a simulator at the California Maritime Academy for over a year. The ship arrived drawing less than its full draft of 50 feet 10 inches (15.5 m) because it held only three-quarters of a load after its stop in Long Beach. San Francisco Bay was traversed by watercraft before

4048-401: The average depth of the bay is only as deep as a swimming pool—approximately 12 to 15 ft (4–5 m). Between Hayward and San Mateo to San Jose it is 12 to 36 in (30–90 cm). The deepest part of the bay is under and out of the Golden Gate Bridge, at 372 ft (113 m). In the late 1990s, a 12-year harbor-deepening project for the Port of Oakland began; it

4140-533: The bay for non-motorized small boat users (such as kayakers) is being developed. Parks and protected areas around the bay include Eden Landing Ecological Reserve , Hayward Regional Shoreline , Don Edwards San Francisco Bay National Wildlife Refuge , Hayward Shoreline Interpretive Center , Crown Memorial State Beach , Eastshore State Park , Point Isabel Regional Shoreline , Brooks Island Regional Preserve , and César Chávez Park . The California Office of Environmental Health Hazard Assessment (OEHHA) has developed

4232-522: The bay perimeter. San Francisco Bay provided the nation's first wildlife refuge, Oakland's artificial Lake Merritt , constructed in the 1860s, and America's first urban National Wildlife Refuge, the Don Edwards San Francisco Bay National Wildlife Refuge (SFBNWR) in 1972. The bay is also plagued by non-native species. Salt produced from San Francisco Bay is produced in salt evaporation ponds and

4324-417: The bay suggest occasional visitors in historic times. San Francisco Bay faces many of the same water quality issues as other urban waterways in industrialized countries, or downstream of intensive agriculture. According to state water quality regulators, San Francisco Bay waters do not meet water quality standards for the following pollutants: Industrial, mining, and other uses of mercury have resulted in

4416-404: The bay's size since the mid-19th century by as much as one third. Recently, large areas of wetlands have been restored, further confusing the issue of the bay's size. Despite its value as a waterway and harbor , many thousands of acres of marshy wetlands at the edges of the bay were, for many years, considered wasted space. As a result, soil excavated for building projects or dredged from channels

4508-481: The bay, augmented during wartime (e.g., the Kaiser Shipyards , Richmond Shipyards ) near Richmond in 1940 for World War II for construction of mass-produced, assembly line Liberty and Victory cargo ships . San Francisco Bay is spanned by nine bridges, eight of which carry cars . The Transbay Tube , an underwater rail tunnel, carries BART services between Oakland and San Francisco. Prior to

4600-467: The beauty of the Six Metre yacht and its performance, Shields envisioned using it as the basis of a one design racing class that would have the advantages of both limiting the upwardly-spiraling costs of yacht racing and putting competing crews on an equal footing as far as equipment was concerned. Shields commissioned Saga's designer-builder, Bjarne Aas of Fredrikstad , Norway , to develop plans for

4692-718: The beginning. Soon there were thirty five IODs racing in Long Island Sound. The class took hold in and was used for the first ever competition for the Amorita Cup . In the next 28 matches, from then to 1964, held to compete for the cup (21 in Bermuda, and 8 on Long Island Sound), the Americans won 13 times, and the Bermudians 16. Today IODs are actively raced in twelve local fleets in North America and Europe. Representatives of those fleets annually compete in

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4784-483: The boats are virtually identical except in details. At the same time, the formula setup allows the boats to differ much more in design while keeping a few important specifications the same. As a result, the identifier "One design" has been used more and more exclusively to denote a class that races only identical boats. Having a rigid one-design specification keeps design experimentation to a minimum and reduces cost of ownership . The popularity of one-design increased in

4876-448: The boats of the host fleet. Boats are rotated after every race, or at some events, each day. To make sure that no competing team gain an advantage through this process, the boats are distributed by random drawing and any local representative is prohibited, by rule, from sailing their own boat. In 1946, Bill John, William S. Cox, George Hinman, Arthur Knapp Jr., A.E. "Bill" Luders Jr. , Emil Mosbacher Jr. and Roderick Stephens Jr. codified

4968-673: The bridges and, later, the Transbay Tube, transbay transportation was dominated by fleets of ferryboats operated by the Southern Pacific Railroad and the Key System transit company. However, in recent decades, ferries have returned, primarily serving commuters from Marin County, relieving the traffic bottleneck of the Golden Gate Bridge (see Ferries of San Francisco Bay ). The bay also continues to serve as

5060-541: The center of the bay, following the ancient drowned river valley. In the 1860s and continuing into the early 20th century, miners dumped staggering quantities of mud and gravel from hydraulic mining operations into the upper Sacramento and San Joaquin Rivers. GK Gilbert's estimates of debris total more than eight times the amount of rock and dirt moved during construction of the Panama Canal. This material flowed down

5152-589: The complex is a popular tourist site. Despite its name, Mare Island in the northern part of the bay is a peninsula rather than an island. San Francisco Bay is thought to represent a down-warping of the Earth's crust between the San Andreas Fault to the west and the Hayward Fault to the east, though the precise nature of this remains under study. About 560,000 years ago, a tectonic shift caused

5244-400: The decades surrounding 1900, at the behest of local political officials and following Congressional orders, the U.S. Army Corps began dredging the Sacramento and San Joaquin Rivers and the deep channels of San Francisco Bay. This work has continued without interruption ever since. Some of the dredge spoils were initially dumped in the bay shallows (including helping to create Treasure Island on

5336-419: The ecosystem of the bay, with fish and fish-eating birds in abundance. Mid-salinity ponds support dense populations of brine shrimp , which provide a rich food source for millions of shorebirds. Only salt-tolerant micro-algae survive in the high salinity ponds, and impart a deep red color to these ponds from the pigment within the algae protoplasm. The salt marsh harvest mouse is an endangered species endemic to

5428-403: The ethos of the class to prevent it moving away from its intended single design nature. This was achieved partly by ensuring only the original builder could produce boats for the class. Today, there are two authorised builders of boats for this class: Tjorns Yacht Service, in Sweden, and South Shore Marine in Chester Nova Scotia. The most recent all wooden IOD, built from the original 1936 drawings,

5520-448: The expedition's cartographer, José de Cañizares, gathered the information necessary to produce the first map of the area. A number of place names survive (anglicized) from that first map, including Point Reyes , Angel Island , Farallon Islands , and Alcatraz Island . Alaskan Native sea otter hunters using Aleutian kayaks and working for the Russian–American Company entered San Francisco Bay in 1807 and again over 1810–1811. Led by

5612-410: The first class awarded International Classic Yacht status by the International Sailing Federation (ISAF). IOD Racing commenced on Long Island Sound during the summer of 1937. The very first trophy awarded for and IOD race was won by Allegra Knapp, sister to famed American sailor Arthur Knapp. Shields' determination to keep the competition on a man-to-man basis maintained the high quality of racing from

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5704-479: The first time in 65 years, Pacific Harbor Porpoise ( Phocoena phocoena ) returned to the bay in 2009. Golden Gate Cetacean Research, a non-profit organization focused on research on cetaceans , has developed a photo-identification database enabling the scientists to identify specific porpoise individuals and is trying to ascertain whether a healthier bay has brought their return. Pacific harbor porpoise range from Point Conception , California, to Alaska and across to

5796-478: The former shoals to the north of Yerba Buena Island ) and used to raise islands in the Sacramento-San Joaquin Delta. The net effect of dredging has been to maintain a narrow deep channel—deeper perhaps than the original bay channel—through a much shallower bay. At the same time, most of the marsh areas have been filled or blocked off from the bay by dikes . Large ships transiting the bay must follow deep underwater channels that are maintained by frequent dredging as

5888-443: The formula '). Some spec parts are mandated, such as tyres and sensors. NASCAR is much in the same boat, with three distinct bodies (Chevrolet, Ford and Toyota) and four distinct engines ( Hendrick , ECR , Roush Yates , TRD ) available in competition. Additionally, while IndyCar cars are all virtually identical Dallara DW12 models, the two distinct engine designs available from Chevrolet and Honda prevent IndyCar from being

5980-403: The hull length overall (LOA) exceeds 27 feet (8.2 m), people generally refer to the boat as an offshore one-design boat or yacht. In other classes, the one-design class may have organized around an existing fleet of similar boats that traditionally existed together often for commercial purposes such as sailing canoes, dhows , and skipjacks , or boats that developed a common hull form over

6072-440: The infill of wetlands and the bay in general, which had shrunk to two-thirds of its size in the century before 1961. The San Francisco Bay continues to support some of the densest industrial production and urban settlement in the United States. The San Francisco Bay Area is the American West's second-largest urban area, with approximately seven million residents. Despite its urban and industrial character, San Francisco Bay and

6164-464: The keel. Cutter rig with 6 ft bowsprit. Designed by H. W. White, ten were built in 1895/6 by Messrs. White Brothers of Itchen Ferry, Southampton and another twelve were built in the following year. The class enjoyed ten years of keen racing but the Metre Rule, which was introduced in 1907 effectively killed the class. The only boat still afloat is Rosenn, formally Eilun, sail number 6. Now, fully restored, she has been identified as meriting inclusion in

6256-409: The large inland Lake Corcoran to spill out the central valley and through the Carquinez Strait , carving out sediment and forming canyons in what is now the northern part of the San Francisco Bay and Golden Gate strait . San Francisco Bay has been filled and emptied of sea water many times during the Pleistocene in accordance with sea level changes caused by glacial advances and retreats. During

6348-482: The largest oil spill in the region since 1996. The bay also has some of the highest levels of dissolved inorganic nitrogen known from any coastal water body, mostly originating from treated wastewater from Publicly owned treatment works . In other bays, such nutrient levels would likely lead to eutrophication , but historically, the bay has had less harmful algal blooms than other water bodies with similar nutrient concentrations. Potential explanations have included

6440-470: The largest contributor to variable costs are the sails. A boat with newer sails will almost always have a greater speed potential than a boat with older sails of the same design. To keep costs low and ensure that each boat is racing with the most equal sails possible, the IOD class has evolved a very specific sail purchase program that is required to be implemented by each local fleet. The Class encourages each local fleet to develop sails for their boats that suit

6532-432: The late 19th century and again with the initiation of dredging by the US Army Corps of Engineers in the 20th century. Before about 1860, most bay shores (with the exception of rocky shores, such as those in Carquinez Strait; along Marin shoreline; Point Richmond; Golden Gate area) contained extensive wetlands that graded nearly invisibly from freshwater wetlands to salt marsh and then tidal mudflat. A deep channel ran through

6624-534: The name. Eventually, the larger, more important body of water fully appropriated the name San Francisco Bay . The first European to enter the bay is believed to have been the Spanish explorer Juan de Ayala , who passed through the Golden Gate on August 5, 1775, in his ship the San Carlos and moored in a bay of Angel Island now known as Ayala Cove. Ayala continued to explore the San Francisco Bay Area and

6716-416: The presence of intensive "top-down control" from grazing clams like Potamocorbula , high sediment supply limiting light availability for the algae, and intensive tidal mixing. The occurrence of an unprecedented harmful algal bloom of Heterosigma akashiwo in 2022, resulting in mass fish deaths and anoxia, suggests that the mechanisms of control on algal growth may be eroding. The bay was once considered

6808-463: The rivers, progressively eroding into finer and finer sediment, until it reached the bay system. Here some of it settled, eventually filling in Suisun Bay, San Pablo Bay, and San Francisco Bay, in decreasing order of severity. By the end of the 19th century, these " slickens " had filled in much of the shallow bay flats, raising the entire bay profile. New marshes were created in some areas. In

6900-896: The rivers. San Francisco Bay is recognized for protection by the California Bays and Estuaries Policy , with oversight provided by the San Francisco Estuary Partnership . Most famously, the bay is a key link in the Pacific Flyway . Millions of waterfowl annually use the bay shallows as a refuge. Two endangered species of birds are found here: the California least tern and the Ridgway's Rail . Exposed bay muds provide important feeding areas for shorebirds , but underlying layers of bay mud pose geological hazards for structures near many parts of

6992-404: The same type of chassis, powertrain , tyres, brakes, and fuel are used by all drivers. The idea behind one-make car racing is that success will be based more on driver skill and car setup , instead of engineering skill and budget. One-make series are popular at an amateur level as they are affordable, due to the use of a common engine and chassis. Examples of one-make racing series from around

7084-508: The specific characteristics of their local sailing area. Unlike many other one-design fleets, however, individual boats, are not granted free license on how frequently they replace their sails. Instead, each local fleet votes each year on what sail, if any, will be purchased before a given season. The chosen sail (mainsail, jib or spinnaker) is ordered in a single lot from the local fleet's official sailmaker, who pledges to make them as near equal as possible. No recutting, or use of alternate sails

7176-589: The specification is published but the boats may only be produced by licensed manufacturers with usually only one builder in any country or region. Examples are the Olympic Finn and 470 but in both these classes a single manufacturer has succeeded in building faster boats than all other manufacturers. However, in the Optimist dinghy, one of the world's largest classes, a tighter specification introduced in 1995 /with ongoing scrutiny has resulted in boats from

7268-734: The time of the discovery of gold in California, January 24, 1848. Map reproduced above delineates old shore line. Placed by the Historic Landmarks committee, Native Sons of the Golden West , 1921." The bay became the center of American settlement and commerce in the Far West through most of the remainder of the 19th century. During the California Gold Rush (1848–1855), San Francisco Bay suddenly became one of

7360-506: The war, legend says that Aas buried the construction jigs to protect them during the Nazi occupation. After the liberation of Norway, construction resumed at Fredrikstad with boats going to San Francisco , Sweden , France , Oyster Bay , and Cowes. Fiberglass construction was introduced in the 1960s with great care taken by the class to ensure that the wood and glass yachts could race on an equal basis. Today, there are twelve fleets racing around

7452-434: The wetlands of the San Francisco Bay with a high salt tolerance. It needs native pickleweed , which is often displaced by invasive cordgrass, for its habitat. The seasonal range of water temperature in the bay is from January's 53 °F (12 °C) to September's 60 °F (16 °C) when measured at Fort Point , which is near the southern end of the Golden Gate Bridge and at the entrance to San Francisco Bay. For

7544-688: The world included the Dodge Viper Challenge , Ferrari Challenge , Porsche Carrera Cup and Supercup , Radical European Masters , Mini Challenge and Commodore Cup . There are also various formula categories that use one-make racing, such as Formula 2 (which since 2011 exclusively uses a car design by Dallara ), Formula Renault , Formula Mazda , Formula Car Challenge , and the W Series . The Formula One race series are not one-design nor one-make racing series as they allow participation by different manufacturers, each designing their own chassis and powertrain (within limits set by '

7636-622: The world's great seaports, dominating shipping in the American West until the last years of the 19th century. The bay's regional importance increased further when the first transcontinental railroad was connected to its western terminus at Alameda on September 6, 1869. The terminus was switched to the Oakland Long Wharf two months later on November 8, 1869. In 1910, the Southern Pacific railroad company built

7728-407: The world— Bermuda, Norway (two fleets - ( Fredrikstad and Tønsberg ), the United Kingdom ( St. Mawes, Falmouth ), Sweden ( Stenungsund ), Canada ( Chester, Nova Scotia ), New York (three fleets -- Larchmont , Manhattan , and Fishers Island ), Maine ( Northeast Harbor ), Massachusetts (two fleets -- Marblehead and Nantucket ), and California ( San Francisco Bay ). Most recently, IODs were

7820-691: The years (such as A-Scows ). In contrast to 'one-design', other sailboats race under a variety of handicapping rules and formulas developed to allow different type boats to compete against one another. Formula rules include the Square Metre Rule , the Ton class , the Universal Rule , and the Metre Rule . Handicap rules include Portsmouth Yardstick , PHRF , IOR , IMS , IRC , Americap and LYS . There have been several attempts to bring

7912-576: Was $ 2,670. Sails, spars, running rigging, cradle, insurance, and shipping charges from Norway were included in the price. With the backing of the enthusiastic Shields, the boat was quickly adopted by the top racers on Long Island Sound. The first of the initial order of 25 yachts was delivered at City Island , New York in December 1936. "I finally arranged to sail her the week after Christmas...the first time anyone had sailed an International,” recalled Shields, many years later. “I don't think I've ever had

8004-403: Was 45 ft (13.72 m), carrying 426 square feet (40 m) of sail. The design of the boat is what is known as a Bermuda sloop , or a Marconi sloop , being single-masted and Bermuda rigged . The result may be considered a reminder of yachting's " Golden age " with the traditional metre-boat's long overhangs, graceful sheer, deep, narrow hull, and lofty rig. The cost of an IOD in 1936

8096-542: Was constructed in 2009 by Tern Boatworks, in Chester, Nova Scotia. The class was overseen by a five-man class committee (headed by Shields until 1960). The committee was as responsible for publicizing the class as regulating it. IODs were the first class awarded International Classic Yacht status by the International Sailing Federation (ISAF). One design One-design racing is

8188-646: Was largely completed by September 2009. Previously, the bay waters and harbor facilities only allowed for ships with a draft of 46 ft (14 m), but dredging activities undertaken by the United States Army Corps of Engineers in partnership with the Port of Oakland succeeded in providing access for vessels with a 50-foot (15 m) draft. Four dredging companies were employed in the US$ 432 ;million project, with $ 244 million paid for with federal funds and $ 188 million supplied by

8280-531: Was often dumped onto the wetlands and other parts of the bay as landfill. From the mid-19th century through the late 20th century, more than a third of the original bay was filled and often built on. The deep, damp soil in these areas is subject to soil liquefaction during earthquakes, and most of the major damage close to the bay in the Loma Prieta earthquake of 1989 occurred to structures on these areas. The Marina District of San Francisco, hard hit by

8372-792: Was patronised by some of the most energetic and best known yacht owners in the Solent, Portsmouth and Southampton waters including Sir Philip Hunloke, the King's yachtmaster. Formed under the auspices of the Solent Sailing Club, the class was adopted by the Royal Yacht Squadron and the Island Sailing Club in 1895. The dimensions of the boats were length overall, 33 ft 3 in; Waterline length, 25 ft; Beam, 7 ft 9 in; Draft, 5 ft; Sail area, 750 sq ft.; Displacement, 5 tons with 2 tons 13 cwt. of lead in

8464-496: Was planned for the 1940 Olympic championships. San Francisco Bay San Francisco Bay is a large tidal estuary in the U.S. state of California , and gives its name to the San Francisco Bay Area . It is dominated by the cities of San Francisco , San Jose , and Oakland . San Francisco Bay drains water from approximately 40 percent of California. Water from the Sacramento and San Joaquin rivers, and from

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