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Formula Three, also called Formula 3 or F3, is a class of open-wheel formula racing. The various championships held in Europe, Australia, South America and Asia form an important step for many prospective Formula One drivers. Formula Three has traditionally been regarded as the first major stepping stone for F1 hopefuls – it is typically the first point in a driver's career at which most drivers in the series are aiming at professional careers in racing rather than being amateurs and enthusiasts. F3 is not cheap, but is regarded as a key investment in a young driver's future career. Success in F3 can lead directly to more senior formulae such as a GP2 seat, or even a Formula One test or race seat. ==History== Formula Three (adopted by the FIA in 1950) evolved from postwar auto racing, with lightweight tube-frame chassis powered by 500 cc motorcycle engines (notably Nortons and JAP speedway). The 500 cc formula originally evolved in 1946 from low-cost "special" racing organised by enthusiasts in Bristol, England, just before the Second World War; British motorsport after the war picked up slowly, partly due to petrol rationing which continued for a number of years and home-built 500 cc cars engines were intended to be accessible to the "impecunious enthusiast". The second post-war motor race in Britain was organised by the VSCC in July 1947 at RAF Gransden Lodge, 500cc cars being the only post-war class to run that day. Unfortunately the race was a complete flop, as three of the seven entrants were non-starters, and, of the four runners, all but one were out of it in the first lap, leaving Eric Brandon in his Cooper Prototype (T2) trailing round to a virtual walk-over at the unimpressive speed of 55.79 mph, though his best lap (which was the fastest recorded for any 500) was 65.38 mph. Cooper came to dominate the formula with mass-produced cars, and the income this generated enabled the company to develop into the senior categories. Other notable marques included Kieft, JBS and Emeryson in England and Effyh, Monopoletta and Scampolo in Europe. John Cooper, along with most other 500 builders, decided to place the engine in the middle of the car, driving the rear wheels. This was mostly due to the practical limitations imposed by chain drive but it gave these cars exceptionally good handling characteristics which eventually led to the mid-engined revolution in single-seater racing. Image:Monopoletta BMW, Bj 1949, Foto 1978.jpg|1949: Monopoletta-BMW File:Cooper- Norton.jpg|1950: Cooper Formula 500, Independent Rear Suspension, Norton Manx engine behind the driver.. Image:Tecno Aleste Bodini 1967 Formula 3 EMS.jpg|1960s: Tecno Image:Ralt RT 1 1978 Formula 3 EMS.jpg|1970s: Ralt RT 1 The 500cc formula was the usual route into motor racing through the early and mid-1950s (and stars like Stirling Moss continued to enter selected F3 events even during their GP careers). Other notable 500 cc Formula 3 drivers include Stuart Lewis-Evans, Ivor Bueb, Jim Russell, Peter Collins, Don Parker, Ken Tyrrell, and Bernie Ecclestone. From a statistical point of view, Don Parker was the most successful F3 driver. Although coming to motor racing late in life (at age 41 in 1949), he won a total of 126 F3 races altogether, and was described by Motor Sport magazine (in his 1998 obituary) as "the most successful Formula 3 driver in history." Although Stirling Moss was already a star by 1953, Parker beat him more than any other driver, and was Formula 3 Champion in 1952, again in 1953, and in 1954 he only lost the title by a half-point. He took the title for a third time in 1959. In 1954, Parker took on a young man named Norman Graham Hill as his mechanic and general assistant, and gave him his first taste of competitive motorsport in a 500cc car at Brands Hatch. Some years later, now using his middle name of Graham, this young man twice became Formula 1 World Champion (1962 and 1968). Don Parker retired from Formula Three after the 1959 season, and chose not to move to Formula 2 or Formula 1 because of his age. However, he did race for one final season (1960), representing Jaguar in the British Saloon Car Championships, and winning at Oulton Park on June 6th in his XK150. As a retirement gift in 1961, Jaguar's Lofty England presented him with a specially-designed 3.8 litre Jaguar Mark 2. It was claimed to be the fastest Mark 2 Jaguar had built, being tested at 140 mph on the newly-opened (but as yet unrestricted) M4 motorway in 1963. 500cc Formula Three declined at an international level during the late 1950s, although it continued at a national level into the early 60s, being eclipsed by Formula Junior for 1000 or 1100 cc cars (on a sliding scale of weights). A one-litre Formula Three category for four-cylinder carburetted cars, with heavily tuned production engines, was reintroduced in 1964 based on the Formula Junior rules and ran to 1970. These engines (a short-stroke unit based on the Ford Anglia〔Gauld, Graham, "Ford", in ''World of Automobiles'' (London: Orbis, 1974), Volume 6, p.696〕 with a special 2-valve Cosworth or Holbay OHV down-draught head being by far the most efficient and popular) tended to rev very highly and were popularly known as "screamers"; F3 races tended to involve large packs of slipstreaming cars. The "screamer" years were dominated by Brabham, Lotus and Tecno, with March beginning in 1970. Early one-litre F3 chassis tended to descend from Formula Junior designs but quickly evolved. For 1971 new regulations allowing 1600 cc engines with a restricted air intake were introduced. The 1971–73 seasons were contested with these cars, as aerodynamics started to become important. Two-litre engine rules were introduced for 1974, still with restricted air intakes. engine regulations remain basically unchanged in F3, a remarkable case of stability in racing regulations. As the likes of Lotus and Brabham faded from F3 to concentrate on Formula One, F3 constructors of the 1970s included Alpine, Lola, March, Modus, GRD, Ralt, and Ensign. Image:Ralt RT 3 1986 Kris Nissen Formula 3 EMS.jpg|1980s: Ralt RT 3 Image:Reynard F 903-001 1990 Michael Schuhmacher Formula 3 EMS.jpg|Early 1990s: Reynard 903 Image:Red Bull Formula Three car.jpg|2000s: Dallara F305 By the start of the 1980s however, Formula Three had evolved well beyond its humble beginnings to something closely resembling the modern formula. It was seen as the main training ground for future Formula One drivers, many of them bypassing Formula Two to go straight into Grand Prix racing. The chassis became increasingly sophisticated, mirroring the more senior formulae – ground effects were briefly used in the early 1980s but were banned, in line with other FIA single-seater formulae; carbon fibre chassis started to be introduced from the mid-1980s. Historically, March (up to 1981), Ralt (up to the early 1990s) and Reynard (1985–1992) had been the main chassis manufacturers in two-litre F3, with Martini fairly strong in France; Reynard pioneered use of carbon fibre in the mid-1980s replacing traditional aluminium or steel monocoque structures. Dallara however, after an unsuccessful Formula One project, focussed their attention on the formula in the early nineties and obliterated all the other marques with their F393. Within a couple of years, the chassis was considered a prerequisite to competitiveness, and today Dallara chassis are ubiquitous to the formula. In order to keep costs down, their chassis have had a three-year life-cycle, with only minor annual updates. It was agreed however to extend the life-cycle of the current F308 to four years to assist teams during the economic recession; it is due to be replaced in 2012. Most F3 championships, most notably the British series, offer a secondary class for cars from the previous life-cycle in order to provide a cheap point of entry for lesser funded teams and drivers. 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「Formula Three」の詳細全文を読む スポンサード リンク
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