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87-538: The Jackson Automobile Company was an American Brass Era automobile manufacturer located in and named for Jackson, Michigan . The company produced the Jackson from 1903 to 1923, the 1903 Jaxon steam car and the 1904 Orlo. Byron J. Carter operated a steam driven press and was a rubber stamp manufacturer. In 1894 Carter went into a partnership with his father selling bicycles. By 1899 he built his first gasoline automobile but focused on steam cars. By 1901 his steam car

174-411: A Buick . The breakup of the track surface led to two fatal accidents in the first two long-distance events (a 250 mi (400 km) and 300 mi (480 km), which was shortened to 235 mi (378 km) after two severe wrecks). That these spectacles had attracted 15,000 paying customers (and crowds of up to 40,000) persuaded principal owner Carl G. Fisher to spend $ 155,000 on repaving

261-585: A Lola - Ford . The Offenhauser engine was also paired with a European maker, McLaren , obtaining three wins for the chassis, one with the Penske team in 1972 with driver Mark Donohue , and two for the McLaren works team in 1974 and 1976 with Johnny Rutherford . This was also the last time the Offy would win a race, its competitiveness steadily decreasing until its final appearance in 1983. American drivers continued to fill

348-552: A Rickenbacker . Angle steel took over from armored wood as the frame material of choice, and in 1912, Hupp pioneered the use of all-steel bodies, joined in 1914 by Dodge . In January, 1904, Frank Leslie's Popular Monthly magazine catalogued the entire range of automobiles available to the mass market in the United States. This list included: Fred H. Colvin , who covered the American automotive industry for many years as

435-416: A 7" shorter wheelbase. Production lasted 1 year. Advertisements proclaimed that "steam is reliable and easily understood". The Orlo was built only in 1904. The Orlo was a five-seat side-entrance model that was equipped with a 16/17 hp two-cylinder engine. The engine was located under the front seat and the drive was through a chain drive . The engine was water-cooled by a finned-coil mounted beneath

522-407: A blind draw for the qualifying order. For each attempt, cars are allowed two warm-up laps. At that time, a member of the team is stationed at the north end of the main stretch. He or she must wave a green flag, signaling an attempt, or else the car will be waved off. The attempt can be waved off during any of the four laps by the team, driver, or race officials. (The series will wave off the run if it

609-548: A car with the passengers seated in the front seat would be a winning sales proposition. Since this car was only around in 1913, it is not likely that there were many purchasers. Jackson did well in racing and won the Wheeler-Schebler Trophy Race which was held at the Indianapolis Motor Speedway before the first Indianapolis 500. The first race held in 1909 was originally scheduled for 300 miles but

696-415: A century, the race eschewed any sort of naming rights or title sponsor , a move, though uncommon in the modern sports world, that was well received by fans. This tradition finally ended in 2016 when a presenting sponsor, PennGrade, was added for the first time. In the 21st century, the facility has also slowly added sponsorship ads on the retaining walls and infield grass. The ESPN-produced ABC telecast of

783-415: A given car number—the "primary" car and a "backup" car. The backup car is identified by the letter "T". For example, the two cars for the #2 team would be numbered #2 and #2T. Both cars may be practiced during the month, but due to engine lease rules, they must share the same engine. It is not uncommon for teams to prefer their backup car, if it is deemed faster, or for other strategic reasons. Additionally, as

870-411: A journalist and editor of trade journals, wrote in his memoir (1947) about his experiences: I have already indicated how the early "craze" for horseless carriages caused automobile plants to spring up like mushroom growths all over the country, just as hundreds of locomotive plants had sprung up in the early days of railroading. In both instances, however, the great majority faded out of the picture once

957-472: A market share throughout the era. Development of automotive technology was rapid, due in part to hundreds of small manufacturers competing to gain the world's attention. Key developments included the electric ignition system (by dynamotor on the Arnold in 1898, though Robert Bosch , 1903, tends to get the credit), independent suspension (actually conceived by Bollée in 1873), and four- wheel brakes (by

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1044-399: A part-time team altogether that does not enter any of the other races, or enters only a few selected races. The "Indy-only" drivers may come from a wide range of pedigrees but are usually experienced Indy car competitors who either lack a full-time ride, are former full-time drivers who have elected to drop down to part-time status, or occasional one-off drivers from other racing disciplines. It

1131-476: A privileged status for automobile races. The first "500" was held at the Speedway in 1911 on Decoration Day , May 30, (as it was known from its inception in 1868 to 1967, when federal law made "Memorial Day" the official name), run to a 600-cubic-inch (9,800 cc) maximum engine size formula. It saw a field of 40 starters, with Harroun piloting a Marmon Model 32-based Wasp racer—outfitted with his invention,

1218-399: A single race, and considered a 24-hour contest, in the fashion of Le Mans , or a one-thousand-mile (1,600 km) event. They decided on 500 miles (800 km), the estimated distance a race car could run before dark descended on the track, and a spectacular purse of $ 25,000, equivalent to 82.93 pounds (37.62 kg) of pure gold . The combination allowed the track to rapidly acquire

1305-657: A single- cylinder engine car that closely resembled the Oldsmobile Curved Dash . The cylinder count in the engines doubled the next year, and doubled again in 1906. Not long after full production started, Carter left the firm to create the Cartercar . He left due to a disagreement with his partners, who did not wish to use the friction drive transmission he had developed. After Carter left, Jackson automobiles lacked any distinct feature, but they were well-built and long-lasting. In 1910, Matthews bought out Lewis, leaving him as

1392-405: Is a rounded rectangle, with four distinct turns of identical dimensions, connected by four straightaways (two long straightaways and two "short chutes"). Traditionally , the field consists of 33 starters, aligned in a starting grid of eleven rows of three cars apiece. Drivers race 200 laps, counter-clockwise around the circuit, for a distance of 500 miles (800 km). Since its inception in 1911 ,

1479-511: Is contested as part of the IndyCar Series , the top level of American open-wheel car racing , a formula colloquially known as "Indy car racing". The track itself is nicknamed the "Brickyard", as the racing surface was first paved in brick in the fall of 1909. One yard of brick remains exposed at the start/finish line. The event, billed as The Greatest Spectacle in Racing , is considered part of

1566-415: Is contested by "Indy cars" , a formula of professional -level, single-seat, open cockpit , open-wheel , purpose-built race cars. As of 2020 , all entrants utilize 2.2 L V6 , twin- turbocharged engines, tuned to produce a range of 550–750 horsepower (410–560 kW). Chevrolet and Honda are the current engine manufacturers involved in the sport. Dallara is at present the sole chassis supplier to

1653-431: Is focused on safety aspects and is done on the pit lane qualifying queue. It is relatively brief, due to the time constraints of the qualifying procedure. The post-qualifying inspection is much more stringent and lengthy, taking place in the garage area. It is to detect deviations from the performance guidelines set forth by the league, and cars can and have been fined or outright disqualified if they fail inspection. During

1740-469: Is not uncommon for some drivers (particularly former Indy 500 winners) to quit full-time driving during the season, but race solely at Indy for numerous years afterward before entering full retirement. Technical specifications for the Indianapolis 500 are currently written by IndyCar . Rules are generally the same as every other IndyCar race. In the past, particularly during the era in which USAC sanctioned

1827-403: Is obvious the run will not be fast enough to qualify and it is getting late in the day.) If an attempt is waved off after the run starts, the attempt counts and the previous time is still forfeited unless race officials waved off the attempt because of weather. Weather can and often does affect qualifying and can result in last-minute format changes. From 1911 to 1955, the race was organized under

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1914-414: Is upwards of 250,000, and infield patrons raise the total race-day attendance to a range of approximately 300,000–350,000. The Indianapolis Motor Speedway complex was built in 1909 as a gravel-and-tar track and hosted a smattering of small events, including ones for motorcycles . The first long-distance event, in "fearful conditions", was the 100-lap Prest-O-Lite Trophy in 1909, won by Bob Burman in

2001-631: The Arrol-Johnston Company of Scotland in 1909). Leaf springs were widely used for suspension , though many other systems were still in use. Transmissions and throttle controls were widely adopted, allowing a variety of cruising speeds, though vehicles generally still had discrete speed settings, rather than the infinitely variable system familiar in cars of later eras. Safety glass also made its debut, patented by John Wood in England in 1905, but would not become standard equipment until 1926 on

2088-597: The NASCAR weekend permanently in 2021 ), and the support races on the road course moved to its own September weekend. As races were cancelled because of local restrictions, the Speedway added two more road course races in October as part of the Intercontinental GT Challenge meeting, where attendance was capped to 10,000 per event. In 2024, the race was delayed for over four hours due to heavy rain and thunderstorms in

2175-544: The Peugeot Grand Prix engine which had been serviced in his shop by Fred Offenhauser in 1914, installing it in Jimmy Murphy 's Duesenberg and allowing him to win the 1922 edition of the race. Miller then created his own automobiles, which shared the 'Miller' designation, which, in turn, were powered by supercharged versions of his 2.0- and 1.5-liter (122 and 91 in ) engine single-seaters, winning four more races for

2262-562: The Triple Crown of Motorsport along with the 24 Hours of Le Mans and the Monaco Grand Prix , with which it typically shares a date. The inaugural race was held in 1911 and was won by Ray Harroun . The event celebrated its 100th anniversary in 2011 , and the 100th running was held in 2016 . The event was put on hiatus twice, from 1917 to 1918 due to World War I and from 1942 to 1945 due to World War II . In two different periods,

2349-428: The green–white–checker finish in case of a late-race yellow. The race can be (and has at times) finished under caution. However, officials may call for a late-race red flag (in lieu of a lengthy yellow) to provide an opportunity for a green-flag finish, an option that was used in 2014 , 2019 , 2022 , and 2023 . The circuit lacks lights, therefore lateness can become a factor in the cases of lengthy delays. The event

2436-411: The rear-view mirror . Harroun (with relief from Cyrus Patschke ) was declared the winner, although Ralph Mulford protested the official result. Eighty thousand spectators were in attendance, and an annual tradition had been established. Many considered Harroun to be a hazard during the race, as he was the only driver in the race driving without a riding mechanic , who checked the oil pressure and let

2523-465: The veteran (pre-1904), and Edwardian eras, although these terms are really not meaningful outside the former British Empire. Early automakers turned to brass for their vehicles for both its looks and function. It held up well against tarnishing and bad weather, but required regular polishing to maintain its appearance. Though the automobile was invented a few years before the start of the Brass Era,

2610-416: The "International Sweepstakes" dropped. Since 1981, the race has been formally advertised in this fashion, complete with a unique annual logo with the ordinal almost always included. Around that same time, in the wake of the 1979 entry controversy, and the formation of CART , the race changed to an invitational event, rather than an Open , rendering the " sweepstakes " description inappropriate. For nearly

2697-579: The 100th race. Harold Hefner (Allison), Tom Harrison (Fisher), Jeff Angel (Wheeler), and Matthew Allen (Newby). In 2020, the race was delayed for the first time from its usual Memorial Day running to August due to the COVID-19 pandemic . There was no audience in attendance, so as to comply with pandemic guidelines. The road course race was moved to the NASCAR weekend in July (which led to an IndyCar road course race added to

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2784-523: The 1970s. Soon after the death of Tony Hulman in 1977, and the loss of several key USAC officials in a 1978 plane crash, several key team owners banded together and formed CART in late 1978 to sanction the sport of Indy car racing . The Indianapolis 500 itself, however, remained under the sanctioning control of USAC. It became the lone top-level race the body still sanctioned, as it ultimately dropped all other Indy car races (as well as their stock car division ) to concentrate on sprints and midgets . For

2871-407: The 1980s, as was Dutchman Arie Luyendyk . In 1993, reigning Formula One World Champion Nigel Mansell shocked the racing world by leaving Formula One for CART . While he came in only third in the 500 , he won the 1993 CART championship . Foreign-born drivers became a regular fixture of Indianapolis in the years to follow. Despite the increase in foreign drivers commonly being associated with

2958-437: The 20 years that make up this era represent the beginning of the automotive industry. It was a period of small-scale manufacturing, experimental designs, and alternative power systems. The middle of this period saw the introduction of Panhard et Levassor's Système Panhard , a front-engine, rear-drive design that became the industry standard for decades. Through this period, electric, gasoline, and steam propulsion power were

3045-463: The 33-car field lining up three-wide for the start, the annual singing of the chorus of " Back Home Again in Indiana ", and the victory lane bottle of milk. Also unique is that qualifying requires the driver to complete four, rather than one, timed laps, and the time trials are conducted on a separate weekend. The official attendance is not disclosed by Speedway management, but the permanent seating capacity

3132-528: The CART era, three of the first six Indianapolis 500 winners were non-American drivers. In 2009, the Indianapolis Motor Speedway began a three-year-long "Centennial Era" to celebrate the 100th anniversary of the opening of the track (1909), and the 100th anniversary of the first Indy 500 (1911). As a gesture to the nostalgic Centennial Era celebration (2009–2011), tickets for the 2009 race donned

3219-579: The Formula One drivers who did drive at the speedway was five-time world champion Argentinian Juan Manuel Fangio , though he failed to qualify for the 1958 race. It was not until the Indianapolis 500 was removed from the World Championship calendar that European entries made their return. In 1963, technical innovator Colin Chapman brought his Team Lotus to Indianapolis for the first time, attracted by

3306-536: The Indianapolis 500 for nearly two decades, made a brief return just before World War II , with the competitive Maserati 8CTF allowing Wilbur Shaw to become the first driver to win consecutively at Indianapolis, in 1939 and 1940. With the 500 having been a part of the World Drivers' Championship between 1950 and 1960, Ferrari made a discreet appearance at the 1952 event with Alberto Ascari , but European entries were few and far between during those days. Among

3393-593: The Indy 500 (but CART sanctioned the other Indy car races), rules at Indy slightly differed at times. The result, for example, would be a particular chassis or engine configuration being legal at Indy, but not so at the CART-sanctioned events. This was rather commonplace in the 1980s and early 1990s, when "stock-block" engines (namely the V-6 Buick) were allotted an increased level of turbocharger boost by USAC at Indy, compared to

3480-473: The Jackson stock model finishing second. The first Indianapolis 500 was held in 1911 and 46 cars entered. 25 of which had larger end engines than the Jackson entry. The four cylinder 559 cubic inch engine Jackson came in 10th overall beating out 16 cars with larger engines. The Jackson had a top speed of 75 miles an hour and was able to run continuously at this speed stopping only for tires and gas. Carter left

3567-458: The United States' participation in the two World Wars (1917–1918, 1942–1945), the advertised Centennial Era occurred during the 93rd to 95th runnings. To avoid confusion between the 100th anniversary, and the actual number of times the race has been run, references to the ordinal during the Centennial Era were curtailed. In the 2014 meeting, the road course became part of the race meeting for

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3654-477: The agreed-upon cutoff of the Brass Era, was the final year the Ford Model T was available with brass fitments. At this point the style had also begun to be considered outdated, and by the 1920s few if any vehicles continued to employ brass in their designs. In the early part of this period, steam-car development had advanced, making steam cars some of the fastest road vehicles of their day. Electric cars also held

3741-401: The area. The race was originally advertised as the "International 500-Mile Sweepstakes Race" from 1911 to 1916. However, from its inception, the race has been widely known as the Indianapolis 500 or, more simply "the 500", as for many years, it was the only noteworthy auto race of such distance. In 1919, the race was referred to as the "Liberty Sweepstakes" following WWI . From 1920 to 1980,

3828-666: The auspices of the AAA Contest Board . Following the 1955 Le Mans disaster , AAA dissolved the Contest Board to concentrate on its membership program aimed at the general motoring public. Speedway owner Tony Hulman founded USAC in 1956, which took over sanctioning of the race and the sport of Championship racing . From 1950 to 1960, the Indianapolis 500 also counted toward the FIA 's World Championship of Drivers (now synonymous with Formula One ), although few drivers participated in

3915-580: The cars apparently were not as good as previously. One assembly line worker said that the company engineer "should have raised chickens instead". By 1923 the newly formed Associated Motors Industries absorbed the Jackson Automobile Company, Dixie Flyer of Louisville and the National of Indianapolis. Production ceased in 1924. Brass Era car Elsewhere in the world, this period would be considered by antique car enthusiasts to consist of

4002-450: The company in 1905 because his partners did not wish to pursue his friction drive idea. Carter went on to build the friction drive Cartercar . During World War I , car production at the firm declined by more than half, since the company was producing materiel for the war effort . For 1919, all production was geared to military supplies. Many Jackson dealers at this time converted to Jordan dealerships. When car production resumed in 1920,

4089-491: The crews. More lengthy repairs are allowed, and since 1998 teams are permitted to return to the garage area to make repairs. However, there are limitations to the extent of repair work allowed and the practicality of such work. Teams are not allowed to change engines, and since 1933 a rule has been in place where teams are not allowed to add oil . In addition, the officials designate a certain lap after which off-track cars being serviced/repaired are no longer permitted to return to

4176-409: The distance has been completed, the race must be resumed and achieve at least the 101-lap distance in order to be official. A primary limiting factor is available daylight, as the track does not have lighting. If the race is halted and cannot be resumed before sunset, the resumption will be scheduled for the next possible day. The Indianapolis 500, as well as other IndyCar Series races, does not utilize

4263-542: The driver know when traffic was coming. In 1912, the purse was raised to $ 50,000, the field was limited to 33 (where it remains), and a riding mechanic was made mandatory. This second event was won by Joe Dawson in a National , after Ralph DePalma 's Mercedes broke. Although the first race was won by an American driver at the wheel of an American car, European makers such as the Italian Fiat or French Peugeot companies soon developed their vehicles to try to win

4350-521: The engine up to 1929 (two of them, 1926 and 1928, in Miller chassis). The engines powered another seven winners until 1938 (two of them, 1930 and 1932, in Miller chassis), then ran at first with stock-type motors before later being adjusted to the international 3.0-liter formula. After purchasing the Speedway in 1927, Eddie Rickenbacker prohibited supercharging and increased the displacement limit to 366 cu in (6,000 cc), while also re-introducing

4437-409: The event did not recognize this sponsorship and instead had Firestone Tires as its presenting sponsorship. The Borg-Warner Trophy , introduced in 1936, proclaims the event as the "Indianapolis 500-Mile Race", with no reference at all to the name "International Sweepstakes". The Indianapolis 500 is held annually at the Indianapolis Motor Speedway , a 2.5-mile (4 km) oval circuit . The track

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4524-433: The event, which they did from 1912 to 1919. The 1913 event saw a change to a 450-cubic-inch (7,400 cc) maximum engine size. After World War I , the native drivers and manufacturers regained their dominance of the race, and engineer Harry Miller set himself up as the most competitive of the post-war builders. His technical developments allowed him to be indirectly connected to a history of success that would last into

4611-512: The first time. The GMR Grand Prix road course event, and the three upper tiers of Road to Indy , participated in road course events at the Speedway during the first week of activities. Six years later, in 2016 , the race celebrated its 100th running with about 350,000 in attendance. Four local actors were hired to portray the Founding Four of James Allison, Carl Fisher, Frank Wheeler, and Arthur Newby during multiple Centennial Era events and

4698-478: The front of the bonnet. The Orlo cost $ 1,125. There is some debate over whether this is actually a different marque of automobile produced by the company or just a Jackson model. It was also referred to as the Jackson Back Seat Steer. This gives new meaning to the term "back seat driver" because this is the actual location of the steering controls. The company probably introduced the car to see if having

4785-546: The industry had become firmly established. As late as 1917, there were 127 different makes of American automobiles on the market, as compared with little more than a dozen in 1947 [i.e. at the time of this writing]. For the sake of the completeness of the present record, and in order to aid future scholars and research workers, I should like to give the list of American automobiles current thirty years ago [i.e., 1917]: A great many more names, including Brush , Duryea , Alco , Speedwell , and Waverly , had already disappeared from

4872-474: The large monetary prizes, far bigger than the usual at a European event. Racing a mid-engined car, Scotsman Jim Clark was second in his first attempt in 1963, dominated in 1964 until suffering suspension failure on lap 47, and completely dominated the race in 1965, a victory which also interrupted the success of the Offy, and giving the 4.2-liter Ford V8 its first success at the race. The following year, 1966, saw another British win, this time Graham Hill in

4959-645: The majority of entries at the Brickyard in the following years, but European technology had taken over. Starting in 1978, most chassis and engines were European, with the only American-based chassis to win during the CART era being the Wildcat and Galmer (which was technically built in Bicester , England) in 1982 and 1992, respectively. Ford and Chevrolet engines were built in the UK by Cosworth and Ilmor , respectively. As of 2023,

5046-580: The mid-1970s. For musical entertainment before the start of the race, the Purdue All-American Marching Band has been the host band of the race since 1919. In 1946, American operatic tenor and car enthusiast James Melton started the tradition of singing " Back Home Again in Indiana " with the Purdue Band before the race when asked to do so on the spur of the moment by Speedway president Tony Hulman . This tradition has continued through

5133-414: The moniker "93rd 500 Mile International Sweepstakes". It is the first time since 1980 that the "Sweepstakes" title has been used. In May 2009, the ordinal (93rd) was used very sparingly, and for the first time since 1981, was not identified on the annual logo. Instead, in most instances in print, television, and radio, the race was referred to as the "2009 Indianapolis 500". Since the race was not held during

5220-465: The month wears on, a "T car" may be split off into a separate entry, and reassigned a new number, or be sold to another team. All cars must pass a rigorous technical inspection before receiving a sticker signifying that the car is eligible to practice. Various criteria include minimum weight, dimensions, and approved parts, particularly safety equipment. Before and after qualification attempts, cars must pass another inspection. The pre-qualifying inspection

5307-518: The most recent active Formula One driver to have entered the 500 is Fernando Alonso , who drove in the 2017 race. Alonso was the first Formula One driver to enter the 500 since Teo Fabi in 1984 . After foreign cars became the norm, foreign drivers began competing in the Indianapolis 500 regularly, choosing the United States as their primary base for their motor racing activities. Brazilian Emerson Fittipaldi , Italian Teo Fabi , and Colombian Roberto Guerrero were able to obtain good outings in

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5394-564: The most victories is Castroneves. Rick Mears holds the record for most career pole positions with six. The most successful car owner is Roger Penske , owner of the Indianapolis Motor Speedway and Team Penske , which has 20 total wins and 18 poles. Penske also has five wins at the IndyCar Grand Prix , held on the combined road course . The event is steeped in tradition , in pre-race ceremonies, post-race celebrations, and race procedure. The most noteworthy and most popular traditions are

5481-439: The other races of that series. Italian driver Alberto Ascari was the only European-based driver to race in the 500 during its World Championship years. His appearance in 1952 in a Ferrari was also the only time a Ferrari has ever appeared in the race. Juan Manuel Fangio practiced at the track in 1958 but declined an offer to race. Control issues of monetary prizes and squabbles over technical regulations caused conflict in

5568-547: The phrase "The Car with the Keystone Radiator" in advertisements. Jackson also produced their own engines with valves in the cylinder heads and overhead camshaft . By 1912 larger vehicles used a multiple metal disc type clutch running in an oil bath, with the smaller horsepower cars using the more standard leather faced cone clutches. The 1921 Princess Coupe was a hit at the Chicago Auto Show , but obtaining credit

5655-530: The powertrains of choice, though gas-powered internal combustion engines were dominant by the end of this period. Various body styles were also in vogue at the time, including the high-wheel motor buggy (resembling the horse buggy of before 1900), runabouts , tonneaus , and other more expensive closed bodies. The vehicles most closely associated with the Brass Era were larger, more expensive luxury vehicles, such as those built by Packard, Peerless, Pierce-Arrow, Cadillac, and other premium manufacturers. 1915,

5742-530: The purpose-built V-8 quad-cam engines. While the "stock block" engines were technically legal in CART competition, they were not given the increased boost advantage, which effectively rendered them uncompetitive, and precluded their use by teams. The most famous manifestation of the USAC rules disparity was the Ilmor -built Mercedes-Benz 500I engine fielded by Roger Penske in 1994 . Teams may enter up to two machines under

5829-513: The race has always been scheduled on or around Memorial Day . Since 1974 , the race has been specifically scheduled for the Sunday of Memorial Day weekend. The Sunday of Memorial Day weekend is widely considered one of the most important days on the motorsports calendar, as it is the day of the Indianapolis 500, the Coca-Cola 600 , and (usually) the Monaco Grand Prix . Practice and time trials are held in

5916-429: The race is not held in wet conditions. In the event of a rain delay , the race will be postponed until rain showers cease, and the track is sufficiently dried. If rain falls during the race itself, officials will halt the race (red flag) and await safe conditions. The officials can end the race and declare the results official if more than half of the scheduled distance (i.e., 101 laps) has been completed. If less than half

6003-418: The race officially reverted to the "International Sweepstakes" moniker, as printed on the tickets and other paraphernalia, with slight variations over the years. Following WWII , the race was commonly recognized as "The 500", "The 500-Mile Race", "Indianapolis 500-Mile Race", "Indianapolis 500", or the simple form "Indy 500". Usually the ordinal (e.g. "50th") preceded it. Often the race was also advertised on

6090-484: The race was part of FIA World Championships ; between 1925 and 1928 , the World Manufacturers' Championship and between 1950 and 1960 , the World Drivers' Championship . Josef Newgarden , the winner in 2023 – 2024 , is the reigning champion. The most successful drivers are A. J. Foyt , Al Unser Sr. , Rick Mears and Hélio Castroneves , each of whom has won the race four times. The active driver with

6177-425: The race, work on the car is permitted, but it is usually limited to routine pit stop work (changing tires and refueling) and minor adjustments (wing angles, etc.) Pit stop activity is rigorously rehearsed by the crews and in modern times, routine pits stops are regularly completed in under ten seconds. Other more involved work, such as replacing damaged bodywork (wings, nose cones, etc.), can also be completed quickly by

6264-451: The race. Throughout the years, the race has used several different qualifying procedures. The current four-lap (ten-mile) qualifying distance was first introduced in 1920 and has been used every year since 1939. Presently, qualifying occurs on over two days. On Day 1, positions 13–30 (or 13–33 if there are only 33 entries) have their position set with all other positions set on Day 2. Following Fast Friday practice, all cars are entered into

6351-399: The radio as the "Annual Memorial Day race", or similar variations. By the late 20th century, the term "Indy 500" had slowly emerged as the most common and most popularly used moniker. As such, since 2016, the official race logo has used the contemporary and colloquial term "Indy 500". For the 1981 race , the name "65th Indianapolis 500-Mile Race" was officially adopted, with all references as

6438-489: The riding mechanic. In 1935, Miller's former employees, Fred Offenhauser and Leo Goossen , had already achieved their first win with the soon-to-become famous 4-cylinder Offenhauser or "Offy" engine. This motor was forever connected with the Brickyard's history with a to-date record total of 27 wins, in both naturally aspirated and supercharged form, and winning a likewise record-holding 18 consecutive years between 1947 and 1964. Meanwhile, European manufacturers, gone from

6525-516: The scene by 1917. Indianapolis 500 The Indianapolis 500 , formally known as the Indianapolis 500-Mile Race , and commonly shortened to Indy 500 , is an annual automobile race held at the Indianapolis Motor Speedway in Speedway, Indiana , United States, an enclave suburb of Indianapolis . The event is traditionally held over Memorial Day weekend, usually the last weekend of May. It

6612-522: The series. Firestone , which has a deep history in the sport, dating back to the first 500, is currently the exclusive tire provider. The traditional 33-car starting field at Indianapolis is larger than the fields at the other IndyCar races. The field at Indy typically consists of all of the full-time IndyCar Series entries (roughly 20–22 cars), along with roughly 10–15 part-time or "Indy-only" entries. The "Indy-only" entries, also known as "One-offs", may be an extra car added to an existing full-time team, or

6699-448: The sole remaining partner. Lewis left to start the Hollier car. Matthews installed his sons in the president, secretary and treasurer positions within the company. The engines used by the company continued to grow, with a Northway six-cylinder engine becoming available in 1913, and a Ferro V8 available in 1916. Later cars resembled the contemporary Rolls-Royce . Indeed, the company used

6786-432: The track with 3.2 million bricks; he also added a 33-inch (0.84 m) concrete wall around the track's circumference. During the 1910 Decoration Day weekend, the first events on the newly paved circuit drew 60,000 spectators; Ray Harroun won the 200-mile (320 km) Wheeler-Schebler Trophy in a Marmon . The crowds grew progressively smaller for the rest of the season, however, so the track owners chose to focus on

6873-574: The two weeks leading up to the race, while miscellaneous preliminary testing is held as early as April. The race is the most prestigious event of the IndyCar calendar, and one of the oldest and most important automobile races. It has been reported to be the largest single-day sporting event in the world. Likewise, the Indianapolis Motor Speedway itself is regarded as the world's largest sporting facility in terms of capacity. The total purse exceeded $ 13 million in 2011 , with over $ 2.5 million awarded to

6960-400: The winner, making it one of the richest cash prize funds in sports. Similar to NASCAR 's Daytona 500 , the Indianapolis 500 is typically held early in the IndyCar Series season. That is unique to most sports where major events are usually at the end of the respective season. Currently, the Indy 500 is the sixth event of the 17-race IndyCar schedule. From the 1970s to the 1990s, Indianapolis

7047-407: The years, notably by actor and singer Jim Nabors from 1972 until 2014. Nabors announced in 2014, citing health-related reasons, that the 2014 Indy 500 would be the last at which he would sing the song. In 2015, the a cappella group Straight No Chaser sang the song before the race, and in the two races held after Nabors' retirement (and before he became the regular singer), the singing of the song

7134-604: Was being manufactured by the Michigan Automobile Company in Kalamazoo. A year later, Carter returned to Jackson after inventing and patenting a three-cylinder six-horsepower steam engine. Carter partnered with George A. Matthews, a buggy manufacturer and Charles Lewis, president of the Lewis Spring Axle Company, and the Jackson Automobile Company was incorporated in 1903. Full production started in 1903 with

7221-399: Was difficult during that year's recession . Carter further developed his automobile, eventually patenting a 3-cylinder steam engine of 6 horsepower . This became the basis of the 1903 Jaxon automobile. All Jaxons were steam-powered, with the Jackson name reserved for the gasoline-powered cars. There were two models on offer: the $ 975 Model A riding on a 72" wheelbase, and the $ 800 Model B on

7308-545: Was done on a rotating basis, with the Spring 2014 winner of The Voice Josh Kaufman performing in 2016. However, the Speedway has returned to a standard singer with Jim Cornelison doing it since 2017. Following the European trends, engine sizes were limited to 183 cu in (3,000 cc) during 1920–1922, 122 cu in (2,000 cc) for 1923–1925, and 91 cu in (1,490 cc) in 1926–1929. The 1920 race

7395-487: Was ended at 235 miles because of the deteriorating track conditions. Out of 19 starters only five remained at the end of 200 miles and when the race was stopped, Jackson had a lead of more than two miles ahead of its nearest competitor. In 1910 the Wheeler-Schebler Trophy Race was again held at the Indianapolis Motor Speedway. The winner was a specially designed six cylinder car built exclusively for racing and

7482-473: Was often the second or third race of the season, and as late as the 1950s, it was sometimes the first championship event of the year. Due to the high prestige of the Indianapolis 500—rivaling or even surpassing the season championship—it is not uncommon for some teams and drivers to focus heavily on preparing for that race during the early part of the season, and not focus fully on the championship battle until after Indy. Due to safety issues such as aquaplaning ,

7569-467: Was won by Gaston Chevrolet in a Frontenac , prepared by his brothers, powered by the first eight-cylinder engine to win the 500. For 1923, riding mechanics were no longer required. A supercharged car, ID, first won the race in 1924. In 1925, Pete DePaolo was the first to win at an average over 100 mph (160 km/h), with a speed of 101.13 mph (162.75 km/h). In the early 1920s, Miller built his 3.0-liter (183 in ) engine, inspired by

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