Saturday 11 June 2011

LeMans

Permanent pits and pit straight for both the Circuit de la Sarthe and Bugatti Circuit
The race traditionally began with what became known as the Le Mans start, in which cars were lined up alongside the pit wall in the order in which they qualified. The starting drivers would stand on the opposite side of the front stretch. When the French flag dropped to signify the start, the drivers would run across the track to their cars, which they would have to enter and start without assistance, before driving away. This became a safety issue in the late 1960s when drivers would ignore their safety harnesses, which were then a recent invention. This led to drivers running the first few laps either improperly harnessed due to attempting to do it while driving or sometimes not even harnessed at all, leading to several deaths when cars were involved in accidents due to the bunched field at the start.
This starting method inspired Porsche to locate the ignition key switch to the left of the steering wheel. In a left-hand drive car, this allowed the driver to use his left hand to start the engine, and his right hand to put the transmission into gear, which in turn shaves off a few tenths of a second.
Another method for speeding up the start was developed by Stirling Moss. His car was waiting with 1st gear already engaged. When he jumped in, he switched the starter on without depressing the clutch. The car was immediately jerked forward by the starter motor, but the engine did not start due to low RPM. After a few seconds of motion, he then pushed the clutch down, allowing the engine to speed up and start while the car was moving.
Feeling this type of start was unsafe, in the 1969 event Le Mans debutant Jacky Ickx opposed it by walking across the track while his competitors ran. Although he was nearly hit by a faster competitor's car while walking, Ickx took the time to fasten his safety belts before pulling away. Privateer John Woolfe was killed in an accident on the first lap of that race. Ickx went on to win.
The traditional Le Mans start was changed for 1970. Cars were still lined up along the pit wall, but the drivers were already inside and strapped in. At the dropping of the French tricolor, the drivers would then start their engines and drive away. However, in 1971 this method was done away with altogether, and instead a rolling start (sometimes known as an Indianapolis start) was introduced and has been used ever since.

History
1923–1939
The 24 Hours of Le Mans was first run on 26 and 27 May 1923, through public roads around Le Mans. Originally planned to be a three year event awarded the Rudge Whitworth Triennial Cup, with a winner being declared by the car which could go the farthest distance over three consecutive 24 Hour races, this idea was abandoned in 1928 and overall winners were declared for each single year depending on who covered the farthest distance by the time 24 hours were up. The early races were dominated by French, British, and Italian drivers, teams, and cars, with Bugatti, Bentley, and Alfa Romeo being the dominant marques. Innovations in car design began appearing at the track in the late 1930s, with Bugatti and Alfa Romeo running highly aerodynamic bodywork in order to run down the Mulsannes Straight at faster speeds. In 1936 the race was cancelled due to general strikes in France, then with the outbreak of World War II in late 1939, the race went on a ten-year hiatus.

1949–1969
Following the reconstruction of the circuit facilities, the race was resumed in 1949 with renewed interest from major automobile manufacturers. After the formation of the World Sportscar Championship in 1953, of which Le Mans was a part, Ferrari, Aston Martin, Mercedes-Benz, Jaguar, and many others began sending multiple cars backed by their respective factories to compete for overall wins against their competitors. Their competition sometimes resulted in tragedy, as in an accident during the 1955 race in which Pierre Levegh's car crashed into a crowd of spectators, killing more than 80 people. The incident led to the widespread introduction of safety measures, not only at the circuit but elsewhere in the motorsports world. However, even though the safety standards improved, so did the speed of the cars; the move from open-cockpit roadsters to closed-cockpit coupes resulted in speeds of over 320 kilometres per hour (200 mph) on the Mulsanne. Race cars of the time were still mostly based on production road cars, but by the end of the 1960s, Ford had entered the picture with their GT40s, taking four straight wins before the era of production-based wins came to a close.

1970–1981
For the new decade, the race took a turn towards more extreme speeds and automotive designs. These extreme speeds led to the replacement of the typical standing Le Mans start with a rolling Indianapolis start. Although production-based cars still raced, they were now in the lower classes while purpose-built sportscars become the norm. The Porsche 917, 935, and 936 were dominant throughout the decade, but a resurgence by French manufacturers Matra-Simca and Renault saw the first victories for the nation since the 1950 race. This decade is also remembered for strong performances from many privateer constructors, with two scoring the only victories for a privateer. John Wyer's Mirage won in 1975 while Jean Rondeau's self-titled chassis took 1980.

1982–1993
The rest of the 1980s was known for the dominance by Porsche under the new Group C race car formula that encouraged fuel efficiency. Originally running the effective 956, it was later replaced by the 962. Both chassis were affordable enough for privateers to purchase them en masse, leading to the two model types winning six years in a row. Jaguar and Mercedes-Benz returned to sports car racing, with Jaguar being the first to break Porsche's dominance with victories in 1988 and 1990 (with the XJR-9 and Jaguar XJR-12 respectively). Mercedes-Benz won in 1989, with what was seen as the latest incarnation of the elegant "Silver Arrows", the Sauber C9, while an influx of Japanese manufacturer interest saw prototypes from Nissan and Toyota. In 1989 too a W.M.-Peugeot set up a new record speeding at 406 km/h (253 mph) in the Ligne Droite des Hunaudières, famous for its 6 km (3.7 mi) long straight. Mazda would be the only Japanese manufacturer to succeed, with their unique rotary-powered 787B winning in 1991. For 1992 and 1993, Peugeot entered the sport and dominated the race with the Peugeot 905 as the Group C formula and World Sportscar Championship were fading in participation.
The circuit would also undergo one of its most notable changes in 1990, when the 5 km long Mulsanne was modified to include two chicanes in order to stop speeds of more than 400 km/h from being reached. This began a trend by the ACO to attempt to slow the cars on various portions of the track; although speeds over 320 km/h are still regularly reached at various points on a lap.

1994–1999
Following the demise of the World Sportscar Championship, Le Mans saw a resurgence of production-based grand tourer cars. Thanks to a loophole in the rules, Porsche succeeded in convincing the ACO that a Dauer 962 Le Mans supercar was a production car, allowing Porsche to race their Porsche 962 for one final time, dominating the field. Although the ACO attempted to close the loop hole for 1995, newcomer McLaren would win the race in their supercar's first appearance thanks to reliability, beating faster yet more trouble prone prototypes. The trend would continue through the 1990s as more exotic supercars were built in order to skirt the ACO's rules regarding production-based race cars, leading to Porsche, Mercedes-Benz, Toyota, Nissan, Panoz, and Lotus entering the GT categories. This culminated in the 1999 event, in which these GT cars were faced with the Le Mans Prototypes of BMW, Audi, and Ferrari. BMW would survive with the victory, their first ever.
This strong manufacturer influence led the ACO to lending the Le Mans name to a sports car series in the United States in 1999, known as the American Le Mans Series, which competes to this day and serves to qualify teams to enter Le Mans.

2000–2005
Many major automobile manufacturers withdrew from sports car racing after the 1999 event, because of the cost involved. Only Cadillac and Audi remained, and Audi easily dominated the race with their R8. Cadillac pulled out of the series after three years, and although Panoz, Chrysler, and MG all briefly attempted to take on Audi, none could match the R8's performance. After three victories in a row, Audi provided engine, team staff and drivers to their corporate partner Bentley, who had returned in 2001, and the factory Bentley Speed 8s were able to succeed ahead of privateer Audis in 2003.

Since 2006
At the end of 2005, after five overall victories for the R8, and six to its V8 turbo engine, Audi took on a new challenge by introducing a diesel engined prototype known as the R10 TDI. Although not the first diesel to race, it was the first to win at Le Mans. This era saw other alternative fuel sources being used, including bio-ethanol, while Peugeot decided to follow Audi's lead and also pursue a diesel entry in 2007 with their 908 HDi FAP.
The 2008 24 Hours of Le Mans was a great race between the Audi R10 TDI and the Peugeot 908 HDi FAP. After 24 hours of racing, the Audi managed to win the race by a margin of less than 10 minutes. For the 2009 24 Hours of Le Mans, Peugeot introduced a new energy-recovery system similar to the KERS used in Formula One.[6] Aston Martin entered the LMP1 category, but still raced in GT1 with private teams. Audi returned with the new R15 TDI, but this time Peugeot prevailed, taking their first overall triumph since 1993.
A second ACO-backed series was also formed, similar to the American Le Mans Series, but concentrating on Europe. The Le Mans Endurance Series (later shortened to Le Mans Series), resurrected many well known 1,000 kilometres (620 mi) endurance races, and was followed by the Asian-centered Japan Le Mans Challenge in 2006.
As of 2008, Porsche is the most successful manufacturer, with a record 16 overall victories, including a record seven in a row.

Aerodynamics
One of the keys to Le Mans is top speed, caused by the long straights that dominate the circuit. This has meant cars have attempted to achieve the maximum speeds possible instead of relying on downforce for the turns. While early competitors cars were street cars with their bodywork removed to reduce weight, innovators like Bugatti developed cars which saw the beginnings of aerodynamics. Nicknamed tanks due to their similarity to a drop tank, these cars used simple curves to cover all the mechanical elements of the car and increase top speed. Once Le Mans returned after World War II, most manufacturers would adopt closed bodies which were streamlined for better aerodynamics. A notable example in the changes brought about by aerodynamics are the 1950 entries by Briggs Cunningham. Cunningham entered two 1950 Cadillac Coupe de Villes, one nearly stock and the other completely rebodied in a streamlined aluminum shape developed by aeronautical engineers from Grumman Aircraft Engineering Corporation. The smoothing of body shapes and fairing-in of various parts of the machine brought about by the continual search for reduction of aerodynamic drag led to a separation from Grand Prix cars, which rarely had large bodywork.

Brakes
With increased speeds around the track, brakes become a key issue for teams attempting to safely bring their cars down to a slow enough speed to make turns such as Mulsanne Corner. Disc brakes were first seen on a car when the Jaguar C-Type raced at Le Mans in 1953. The Mercedes-Benz 300 SLR would introduce the concept of an air brake in 1955, using a large opening hood on the rear of the car.
In the 1980s, anti-lock braking systems would become standard on most Group C cars as a safety measure, ensuring that cars did not lose control while still moving at approximately 320 km/h. By the late 1990s, reinforced carbon-carbon brakes would be adapted for better stopping power and reliability.

Successful marques and drivers
Over the years, many manufacturers have managed to take the overall win, while even more have taken class wins. By far the most successful marque in the history of the race is Porsche, which has taken sixteen overall victories, including seven in a row from 1981 to 1987. Ferrari follows with nine, also including six in a row from 1960 to 1965. Recently the Audi marque has dominated the event, winning in nine of the eleven years it has participated. Audi and Team Joest have had two hat-tricks, the first being in 2000, 2001, and 2002. Jaguar has seven wins, while Bentley, Alfa Romeo, and Ford all managed to win four races in a row, with Bentley recording two other victories in other years as well. The only Japanese marque to win the race so far has been Mazda, although nearly every major Japanese manufacturer has made attempts at the race. Mazda's 1991 victory is the only win by a rotary engine, one of Mazda's hallmarks.
Two drivers stand apart for their number of victories. Initially Jacky Ickx held the record at six, scoring victories between 1969 and 1982, earning him an honorary citizenship to the town of Le Mans. However Dane Tom Kristensen has beaten this record with eight wins between 1997 and 2008, including six in a row. Three-time winner Woolf Barnato (1928 to 1930) and American racing legend AJ Foyt (1967) are still the only drivers to have won every Le Mans they participated in.
Henri Pescarolo has won the race four times, and currently holds the record for the most Le Mans appearances at 33. Japan's Yojiro Terada, currently still active as a driver, holds the record for the most Le Mans starts without a win. Graham Hill is the only driver to win the so-called Triple Crown of Motorsport which is defined as winning the Indianapolis 500 (won by Hill in 1966), Monaco Grand Prix (1963, 1964, 1965, 1968, 1969) and the 24 Hours of Le Mans (1972)

Accidents
With the high speeds associated with Le Mans, the track has seen a number of accidents, some of which have been fatal to drivers and spectators. The worst moment in Le Mans history was during the 1955 race in which more than 80 spectators and driver Pierre Levegh were killed. In the shock following this disaster, many major and minor races were cancelled in 1955, such as the Grand Prix races in Germany and Switzerland (the latter as a reaction having banned motorsport round-track races throughout the entire country to this day[12]). This accident brought wide sweeping safety regulations to all motorsports series, for both driver and spectator protection. In 1986 Jo Gartner drove a Porsche 962C and crashed into the barriers on the Mulsanne straight, killing him instantly. His accident was the most recent fatality in the race itself, however there was the fatality of Sebastien Enjolras in 1997 during the practices.
In one of the most recognizable recent accidents, calamity would once again strike Mercedes-Benz, although without fatality. The Mercedes-Benz CLRs which competed in 1999 would suffer from aerodynamic instabilities that caused the cars to become airborne in the right conditions. After initially happening at the Le Mans test day, Mercedes claimed they had solved the problem, only to have it occur again at Warm Up hours before the race. Mark Webber was the unlucky driver to flip the car on both occasions. The final and most damaging accident occurred during the race itself when Peter Dumbreck's CLR became airborne and then proceeded to fly over the safety fencing, landing in the woods several metres away. No drivers were badly hurt in any of the three accidents, but Mercedes-Benz quickly withdrew their remaining entry and ended their entire sportscar program.
[edit]Appearances in media

See also: Le Mans 24 Hours video games
The 1964 event plays a critical part in the Academy Award winning Un Homme et Une Femme, in which the wife of the driver hero commits suicide when she mistakenly thinks that he has been killed in an accident during the race.
The 1969 event, known for its close finish, was documented in a short film entitled La Ronde Infernale. This was given a limited cinema release but is now available on DVD.
The race became the center of a major motion picture in 1971 when Steve McQueen released his simply titled Le Mans, starring McQueen as Michael Delaney, a driver in the 1970 event for the Gulf Porsche team. Likened to other motorsports films such as Grand Prix for Formula One racing and Winning for the Indianapolis 500, Le Mans is the best known film to center on sports car racing. It was filmed during the race using modified racing cars carrying cameras, as well as purchased Porsche 917s, Ferrari 512s and Lola T70s for action shots made after the race. The Porsche 908 which served as a camera car in the race actually finished, yet was so far behind the winners due to lengthy reel changes during pit stops that it was not classified in the results.
A modern film not centering on Le Mans yet featuring events from the 2002 race was Michel Valliant, about a French comic book motorsports hero. Again using two camera cars to tape action during the race, the French film was not as widely accepted as Le Mans had been. The 1974 TV show The Goodies also featured an episode entitled The Race, involving a comedic trio attempting to run Le Mans.
More recently, a documentary film called Truth in 24, narrated by Jason Statham, covered the Audi team in its effort to win a 5th straight title in 2008. The race features prominently as the film covers the racing season leading up to the LeMans race.
The race has also been used for several video games over the years, some of which have allowed players to compete for the full 24 hours. Although most used the Le Mans name itself, the PlayStation 2 game Gran Turismo 4 also included the Circuit de la Sarthe and allowed players to run the full 24 hour races with and without the chicanes on the Mulsanne Straight. The Xbox 360, PlayStation 3 and PC game Race Driver: Grid also includes the 24 Hours of Le Mans at the end of each in-game season albeit being only 24 minutes in length by default. However the player can also choose to compete in the race for different lengths of time ranging from several minutes to a full 24 hours. The Xbox 360 game Forza Motorsport 3 also features the track in 3 different configurations: the full Circuit De La Sarthe, the old configuration without the chicanes, and the Bugatti circuit. Gran Turismo 5 includes the 2005 version and 2009 version, with and without chicanes. Gran Turismo (PSP) also included the 2005 version(with the chicanes on the Mulsanne Straight) and the old version (without the chicanes).
[edit]Coverage
Motors TV covered the Le Mans 24 Hours in the entirety in 2006 and 2007. This included coverage of the scrutineering, qualifying, driver parade, warm up and the whole race. In the United States, Speed Channel airs partial live coverage through a combination of coverage from the French host broadcaster and their own pit reporting crew. In 2008 Eurosport secured a multi-year deal to show the entire race including the qualifying and the motorcycle race. Every hour of the 2008 race was broadcasted in segments on the main channel and on Eurosport 2, however in recent years, a couple of Hours have been missed due to scheduling clashes with other sports. In addition live streaming video was provided on Eurosport's web page, albeit not for free. But since 2009, Eurosport and Eurosport 2 has been covering non-stop between those two channels, all 24 hours of action.
The race is also broadcast (in English) on radio by Radio Le Mans. Broadcast from the circuit for the full 24 hours as well as before and after, it offers fans at the race the ability to listen to commentary through radio. Radio Le Mans is also broadcast through internet radio on their website.

Vintage racing
Since 2001, the ACO has allowed the Le Mans Legend event to participate on the full Circuit de la Sarthe during the 24 Hours week. These exhibition races involve classic cars which had previously run at Le Mans or similar to ones that had. Each year, a set era of cars is allowed to participate, with the era changing from year to year. Though mostly amateur drivers, some famous drivers have appeared to race cars they had previously run, such as Stirling Moss.
Starting in 2002, the Le Mans Classic has taken place on the full 13 km circuit in July as a biannual event. The races take places over a full 24 hour day/night cycle, with starts on set times allowing cars from the same era to compete at the same time. A team typically consists of a car in each class, and the team with the most points accumulated over five or six classes declared the overall winner. The classes are based on the era in which the cars would have competed, the exact class requirements are re-evaluated for every event since for every event the age for the youngest entries is shifted by 2 years. Although the format of the first event saw 5 classes doing more short races, later events have seen 6 classes do fewer but longer races. With the upcoming 2008 event probably allowing early Group C contenders, this format could see yet another revision with either more classes or classes spanning longer periods in time. Drivers are also required to have an FIA International Competition license to participate. This event also includes a large concours and auction.

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