In 1962, the Lotus team ran the Lotus 25 powered by the new Coventry-Climax FWMV V8 engine. The car had an aluminium sheet monocoque chassis instead of the traditional spaceframe design. This proved to be the greatest technological breakthrough since the introduction of mid-engined cars, but the Lotus was unreliable at first. Jim Clark finished second that year leaving the title to Graham Hill and his new V8 powered BRM.
As soon as the car and the engine became reliable, the era of the Lotus and of Jim Clark began. Clark won the title twice in three years, 1963 and 1965, the latter being the only occasion to date of a driver winning both the Championship and the Indianapolis 500-Mile Race in the same year. For 1964 Lotus introduced the new Lotus 33 and Ferrari made considerable technological and financial effort to win the title. Ferrari used no less than three different engines in the season—the existing V6, a V8 and a flat-12, while Lotus was struggling with the teething troubles of a new car. The title went to John Surtees and Ferrari. Surtees' title was especially notable, as he became the only driver ever to win the World Championship for both cars and motorcycles. The 1965 Mexican Grand Prix, the last race of the 1.5 litres Formula One, saw Richie Ginther giving Honda its first victory at the end of a season that was otherwise disappointing for the Japanese newcomer. This was first victory by a Japanese car and, as of today, the only one by a car powered by a transverse engine.
1966 saw a 'Return to Power' as Formula One changed the engine rules once again, allowing engines of 3.0 litre normally aspirated, or 1.5 litre supercharged capacity. 1966 was a transitional year for most teams, however, the year did see the first use of a technology which would later go on to revolutionise the sport: composite materials. The McLaren M2B, designed by Robin Herd, used an aluminium-wood laminate known as Mallite for much of its monocoque, although the car's design did not make best use of the new material.
Ferrari was the great favorite with a 3 litre version of his well tested sports car V12 design, but the engines were underpowered and the cars were heavy; an enlarged V6 held some promise but Surtees left mid-season after a dispute with team manager Dragoni. Coventry-Climax, formerly supplier to much of the field, pulled out of the sport leaving teams like Lotus to struggle with enlarged versions of obsolete Climax engines. Cooper turned to a development of an otherwise obsolete Maserati V12 that was originally designed for the Maserati 250 F in the late 1950s while BRM made the choice to design an incredibly heavy and complex H-16. The big winner was Jack Brabham, whose eponymous racing team took victory two years with a compact spaceframe chassis powered by the aluminium-block stock-derived Repco V8 unit. With SOHC heads and no more than 330 bhp,[9] the Repco was by far the least powerful of the new 3 litre engines but unlike the others it was light, reliable and available right from the start of the new rules. 1966 was Jack's year, while 1967 went to his teammate, New Zealander Denny Hulme, as Jack tried new parts on his car.
In 1967 Lotus introduced the Lotus 49, powered by the Ford-Cosworth DFV V8 engine that was to dominate Formula One for the next decade. Like the Repco the Cosworth was light and compact but it was a real racing engine using 4-valve DOHC heads and delivering much more power - Cosworth had aimed for 400 bhp (300 kW) and exceeded this when the engine first ran. The DFV was designed to be fully stressed (an idea pioneered by the Lancia D50).[10] This allowed Chapman to design a monocoque that ended just after the driver's seat while the Brabham were still using a very classic tubular frame that supported the engine, the gearbox and the rear suspension wishbones. The newborn DFV suffered from frequent failures due to excessive vibration from the flat-plane crank, forcing Keith Duckworth to redesign several parts and allowing Hulme to win the World Driver's Crown on reliability.
1967 also saw a remarkable result by Rhodesian driver John Love with a 2.7 litre four-cylinder Cooper-Climax; Love, who was in his forties and although seen as one of the finest drivers in Southern Africa was not a major star, led and finished second in that year's South African Grand Prix. Love's Cooper was originally designed for the short races of the Tasman Series; to run a full Grand Prix Love added two auxiliary gas tanks. Unfortunately the auxiliary tanks fuel pump failure forced him to refuel after having led most of the race.[11]
Love was the king of South Africa's flourishing domestic Formula One championship, which was run from 1960 through to 1975, winning the drivers championship six times in the 1960s. The frontrunning cars in the series were recently retired from the world championship although there was also a healthy selection of locally built or modified machines. Frontrunning drivers from the series usually contested their local World Championship Grand Prix, as well as occasional European events, although they had little success at that level.
By the late 1960s, 'overseas' races outside Europe like the South African Grand Prix formed about a third of the championship in any year. The core of the season remained the European season run over the Northern Hemisphere summer, with overseas races usually falling at the start or end of the season, a pattern which has continued to this day. There were also a number of non-championship races run outside Europe – the South African Grand Prix was occasionally one of these.
Tidak ada komentar:
Posting Komentar