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Silverstone Circuit is a motor racing circuit in England next to the Northamptonshire villages of Silverstone and Whittlebury. The circuit straddles the Northamptonshire and Buckinghamshire border, with the current main circuit entry on the Buckinghamshire side. The Northamptonshire towns of Towcester (5 miles) and Brackley (7 miles) and Buckinghamshire town of Buckingham (6 miles) are close by, and the nearest large towns are Northampton and Milton Keynes. Silverstone is the current home of the British Grand Prix, which it first hosted in 1948. The 1950 British Grand Prix at Silverstone was the first race 〔, Mike Lang, Grand Prix! Volume 1, 1950 to 1965, page 14〕 in the newly created World Championship of Drivers.〔''World Championship of Drivers'', 1974 FIA Yearbook, Grey section, page 118 -1198〕 The race rotated between Silverstone, Aintree and Brands Hatch from 1955 to 1986, but relocated permanently to Silverstone in 1987. On 30 September 2004 British Racing Drivers' Club president Jackie Stewart announced that the British Grand Prix would not be included on the 2005 provisional race calendar and, if it were, would probably not occur at Silverstone. However, on 9 December an agreement was reached with Formula One rights holder Bernie Ecclestone ensuring that the track would host the British Grand Prix until 2009 after which Donington Park would become the new host. However, the Donington Park leaseholders suffered economic problems resulting in the BRDC signing a 17-year deal with Ecclestone to hold the British Grand Prix at Silverstone. ==The circuit== (詳細はRAF Silverstone, which opened in 1943. The airfield's three runways, in classic WWII triangle format, lie within the outline of the present track. Silverstone was first used for motorsport by an ''ad hoc'' group of friends who set up an impromptu race in September 1947. One of their members, Maurice Geoghegan, lived in nearby Silverstone village and was aware that the airfield was deserted. He and eleven other drivers raced over a two-mile circuit, during the course of which Geoghegan himself ran over a sheep that had wandered onto the airfield. The sheep was killed and the car written off, and in the aftermath of this event the informal race became known as the ''Mutton Grand Prix''. The next year the Royal Automobile Club took a lease on the airfield and set out a more formal racing circuit. Their first two races were held on the runways themselves, with long straights separated by tight hairpin corners, the track demarcated by hay bales. However, for the 1949 International Trophy meeting, it was decided to switch to the perimeter track. This arrangement was used for the 1950 and 1951 Grands Prix. In 1952 the start line was moved from the Farm Straight to the straight linking Woodcote and Copse corners, and this layout remained largely unaltered for the following 38 years. For the 1975 meeting a chicane was introduced to try to tame speeds through the mighty Woodcote Corner (although MotoGP would still use the circuit without the chicane up until 1986), and Bridge Corner was subtly rerouted in 1987. The track underwent a major redesign between the 1990 and 1991 races, transforming the ultra-fast track (where in its last years every corner was taken in no lower than fourth or fifth gear, depending on the transmission of the car, except for the Bridge chicane, which was usually taken in second gear) into a more technical track. The reshaped track's first F1 race was perhaps the most memorable of recent years, with Nigel Mansell coming home first in front of his home crowd. On his victory lap back to the pits Mansell even found time to pick up stranded rival Ayrton Senna and give him a lift on his side-pod after Senna's McLaren had run out of fuel on the final lap of the race. Following the deaths of Senna and fellow Grand Prix driver Roland Ratzenberger at Imola in 1994, many Grand Prix circuits were modified in order to reduce speed and increase driver safety. As a consequence of this the entry from Hangar Straight into Stowe Corner was modified in 1995 so as to make its entry less dangerous. In addition, the flat-out Abbey kink was modified to a chicane in just 19 days before the 1994 GP. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「silverstone circuit」の詳細全文を読む スポンサード リンク
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