Formula 1 Information

Indianapolis Motor Speedway was built in 1909 as a testing facility for the local automotive industry. The track was first paved with crushed rock and tar but was soon repaved with brick; hence, the speedway is often called the “Brickyard.” Resurfacing with asphalt has covered all but a 36-inch (91-cm) strip of bricks at the start/finish line. The 2.5-mile (4-km) track has two 3,300-foot (1,000-metre) straightaways, two 660-foot (200-metre) straightaways, and four quarter-mile (400-metre) turns each banked at an angle of about 9 degrees. The speedway is also home to a 400-mile (644-km) stock-car race (August) and a Grand Prix race of Formula One cars.

Racing cars used in the Indianapolis 500 have undergone considerable modification over time. The officially approved car now in use has an open-wheel, low-slung, open-cockpit chassis with a rear-mounted high-performance engine having a displacement of 183.6 cubic inches (3.0 litres). Drivers must first qualify in a four-lap time trial. The race starts with a field of 33 cars, arranged in rows of three on the basis of qualifying time. Racers then compete over a distance of 500 miles (800 km), or 200 laps.

In 1911 American Ray Harroun won the first 500 in about 6 hours 42 minutes with an average speed of 74.6 miles (120.1 km) per hour; he received winnings of $14,250. By the race's ninth decade, the winner's average speed typically exceeded 160 miles (257 km) per hour—with single-lap speeds of some 220 miles (355 km) per hour—and earnings were roughly $1.3 million. The first foreigner to win the race was Frenchman Jules Goux in 1913, and women began competing in 1977. Since 1936 it has been traditional for the winner to celebrate by drinking a bottle of milk.

In the early decades of the Indianapolis 500, the race was sanctioned by the American Automobile Association (AAA). From 1956 to 1997 the race was under the aegis of the United States Auto Club (USAC). A rival open-wheel racing series known as Championship Auto Racing Teams (CART) was formed in 1979. By the mid-1990s CART had successfully replaced USAC as the leading power in Indy car racing. In 1996 speedway owner Tony George formed the Indy Racing League (IRL) to counteract the influence of CART. The IRL has overseen the 500 since 1997.

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