A V8 engine is an eight-cylinder V configuration engine with the cylinders mounted on the crankcase in two sets of four, with all eight pistons driving a common crankshaft. Most banks are set at a right angle to each other, some at a narrower angle, with 45°, 60°, 72° most common. In its simplest form, the V8 is two parallel inline-four engines sharing a common crankshaft. However, this simple configuration, with a flat- or single-plane crankshaft, has the same secondary dynamic imbalance problems as two straight-4s, resulting in vibrations in large engine displacements. Since the 1920s, most V8s have used the somewhat more complex crossplane crankshaft with heavy counterweights to eliminate the vibrations; this results in an engine, smoother than a V6, while being less expensive than a V12. Many racing V8s continue to use the single plane crankshaft because it allows faster acceleration and more efficient exhaust system designs. In 1902, Léon Levavasseur took out a patent on a light but quite powerful gasoline injected V8 engine.
He called it the'Antoinette' after the young daughter of his financial backer. From 1904 he installed this engine in a number of early aircraft; the aviation pioneer Alberto Santos-Dumont saw one of these boats in Côte d'Azur and decided to try it on his pusher configuration, canard-design 14-bis aircraft. Its early 24 hp at 1400 rpm version with only 55 kg of weight was interesting, but proved to be underpowered. Santos-Dumont ordered a more powerful version from Levavasseur, he changed its dimensions from the original 80 mm stroke and 80 mm bore to 105 mm stroke and 110 mm bore, obtaining 50 hp with 86 kg of weight, including cooling water. Its power-to-weight ratio was not surpassed for 25 years. Levavasseur produced its own line of V8 equipped aircraft, named Antoinette I to VIII. Hubert Latham piloted the V8 powered Antoinette IV and Antoinette VII in July 1909 on two failed attempts to cross the English Channel. However, in 1910, Latham used the VII with the same engine to become the first in the world to reach an altitude of 3600 feet.
Voisin constructed pusher biplanes with Antoinette engines notably the one first flown by Henry Farman in 1908. The V8 engine configuration was used in France by 1904, in race car and aircraft engines introduced by Renault, Buchet among others; some of these engines found their way into automobiles in small quantities. In 1905, Darracq built a special car to beat the world speed record, they came up with two racing car engines built on camshaft. The result was an engine with a displacement of 1,551 cu in, 200 bhp. Victor Hemery achieved the record on 30 December 1905 with a speed of 109.65 mph. This car still exists. Rolls-Royce built a 3,535 cc V8 car from 1905 to 1906, but only three copies were made and Rolls-Royce reverted to a I6 design. In 1907, the Hewitt Motor Company built a large five-passenger Touring Car, it was equipped with a V8 engine that developed 50/60 horsepower and had a bore of 4 in and a stroke of 4.5 in. The Hewitt was the first American automobile to be equipped with a V8 engine.
De Dion-Bouton introduced a 7,773 cc automobile V8 in 1910 and displayed it in New York in 1912. It inspired a number of manufacturers to follow suit; the limiting factor in mass production and sales of V8s was the difficulty in starting large engines using a hand crank. Not only does increasing the size of the engine make this harder, the number of pistons is a factor, because with a 4 cylinder engine, a piston comes into compression every half turn of the crank, overcoming this with the crank is not difficult. With eight cylinders, there is only 1/4 of a turn of the crank before another cylinder comes into compression. To overcome this problem, electric starters were developed; the first marque to equip its cars with electric starter motors was Cadillac, in 1912, Cadillac was the first production automobile with V8s, introduced 2 years later. It sold 13,000 of the 5.4 L L-head engines in its first year of production, 1914. Cadillac has been a V8 company since. Oldsmobile, another division of General Motors, introduced its own 4 L V8 engine in 1916.
Chevrolet introduced a 4.7 L V8 engine in 1917 and installed in the Chevrolet Series D. In February 1915, Swiss automotive engineer Marc Birkigt designed the first example of the famous Hispano-Suiza V8 single overhead cam aviation engines, in differing displacements, using dual ignition systems and in power levels from 150 horsepower to around 300 horsepower, in both direct-drive and geared output shaft versions. 50,000 of these engines were built in Spain, the United Kingdom, Italy. Wright Aeronautical built them in the United States during World War I, with the French-produced versions getting almost-exclusive use to power the SPAD S. VII and SPAD S. XIII fighter aircraft. E.5 fighters and Sopwith Dolphin fighters. The H. S. 8-series overhead cam valvetrain V8 aviation engines are said to have powered half of all Allied aircraft of the WW I era. By 1932, Henry Ford introduced one of his last great personal engineering triumphs: his "en block", or one piece, V8 engine, its simple design made possible the greatest production V8 to the masses.
Offered as an option to an improved 4-cylinder Mo
Mobil known as the Socony-Vacuum Oil Company, is a major American oil company that merged with Exxon in 1999 to form a parent company called ExxonMobil. It was one of the Seven Sisters that dominated the global petroleum industry from the mid-1940s until the 1970s. Today, Mobil continues as a major brand name within the combined company, as well as still being a gas station sometimes paired with its own store or On the Run; the former Mobil headquarters in Fairfax County, was used as ExxonMobil's downstream headquarters until 2015 when ExxonMobil consolidated employees into a new corporate campus in Spring, Texas. Following the break-up of Standard Oil in 1911, the Standard Oil Company of New York, or Socony, was founded, along with 33 other successor companies. In 1920, the company registered the name "Mobiloil" as a trademark. Henry Clay Folger was head of the company until 1923. Beginning February 29, 1928 on NBC, Socony Oil reached radio listeners with a comedy program, Soconyland Sketches, scripted by William Ford Manley and featuring Arthur Allen and Parker Fennelly as rural New Englanders.
Socony continued to sponsor the show when it moved to CBS in 1934. In 1935, it became the Socony Sketchbook, with the Johnny Green orchestra. In 1931, Socony merged with Vacuum Oil to form Socony-Vacuum. In 1933, Socony-Vacuum and Jersey Standard merged their interests in the Far East into a 50–50 joint venture. Standard-Vacuum Oil Co. or "Stanvac," operated in 50 countries, including New Zealand and the region of East Africa, before it was dissolved in 1962. In 1935, Socony Vacuum Oil opened the huge Mammoth Oil Port on Staten Island which had a capacity of handling 250 million gallons of petroleum products a year and could transship oil from ocean-going tankers and river bargesIn 1940, Socony-Vacuum's gasoline buying practices led to the major antitrust law case United States v. Socony-Vacuum Oil Co; the case originated with Socony-Vacuum's practices of organizing a cartel among the "major" oil companies in which they bought oil—known as "hot oil"—from independent producers and stored the surplus in tanks to limit the supply of oil available on the market and keep the price of oil artificially high.
In its decision, the U. S. Supreme Court ruled that regardless of the purpose of the price fixing or if the prices varied, such conduct was illegal in and of itself: "Under the Sherman Act a combination formed for the purpose and with the effect of raising, fixing, pegging, or stabilizing the price of a commodity in interstate or foreign commerce is illegal per se..." This rule remains in use today for agreements that appear on their face to always or always restrict competition and reduce output. In 1955, Socony-Vacuum was renamed Socony Mobil Oil Company. In 1963, it changed its trade name from "Mobiloil" to "Mobil", introducing a new logo. To celebrate its 100th anniversary in 1966, "Socony" was dropped from the corporate name. From 1936 to 1968, Mobil sponsored an economy run each year in which domestic automobiles of various manufacturers in several price and size classes were driven by light-footed drivers on cross-country runs; the Economy Run originated with the Gilmore Oil Company of California in 1936 and became the Mobilgas Economy Run, still the Mobil Economy Run.
The cars driven in the economy run were fueled with Mobil gasoline, Mobiloil and lubricants were used. The vehicles in each class that achieved the highest fuel economy numbers were awarded the coveted title as the Mobilgas Economy Run winner. During American involvement in World War II, April 29, 1942, Socony's unescorted tanker, named Mobiloil, was sunk by a German U-boat, all 52 people survived after 86 hours adrift in lifeboats. Socony-Mobil ranked 86th among United States corporations in the value of World War II military production contracts. Through the years, Mobil was among the largest sellers of gasoline and motor oils in the United States and held the top spot during the 1940s and much of the 1950s. Various Mobil products during the Socony-Vacuum and Socony-Mobil years included Metro and Mobilgas Special gasolines. In 1954, Mobil introduced a new and improved Mobilgas Special in response to trends toward new automobiles powered by high-compression engines that demanded higher and higher octane gasolines.
The newest formulas of Mobilgas Special were advertised as offering "A Tune-Up in Every Tankful" due to a combination of chemicals known as the "Mobil Power Compound", designed to increase power, check pre-ignition ping, correct spark plug misfiring, control stalling and combat gumming up of carburetors. Mobil campaigns advertised Mobilgas as the "New Car Gasoline" following extensive testing during the annual Mobilgas Economy Run. In 1962, the gasoline product lines marketed as Mobilgas and Mobilgas Special were rebranded as Mobil Regular and Mobil Premium in a move to emphasize the shortened brand name "Mobil" in promotional efforts, although Mobiloil continued as a single-word term until the 1970s. After a few years of advertising Mobil gasolines as "Megatane"-rated and as "High Energy" gasolines, Mobil began, in 1966, to promote both it
Auto racing is a motorsport involving the racing of automobiles for competition. Auto racing has existed since the invention of the automobile. Races of various sorts were organised, with the first recorded as early as 1867. Many of the earliest events were reliability trials, aimed at proving these new machines were a practical mode of transport, but soon became an important way for competing makers to demonstrate their machines. By the 1930s, specialist racing cars had developed. There are now each with different rules and regulations; the first prearranged match race of two self-powered road vehicles over a prescribed route occurred at 4:30 A. M. on August 30, 1867, between Ashton-under-Lyne and Old Trafford, a distance of eight miles. It was won by the carriage of Isaac Watt Boulton. Internal combustion auto racing events began soon after the construction of the first successful gasoline-fueled automobiles; the first organized contest was on April 28, 1887, by the chief editor of Paris publication Le Vélocipède, Monsieur Fossier.
It ran 2 kilometres from Neuilly Bridge to the Bois de Boulogne. On July 22, 1894, the Parisian magazine Le Petit Journal organized what is considered to be the world's first motoring competition, from Paris to Rouen. One hundred and two competitors paid a 10-franc entrance fee; the first American automobile race is held to be the Thanksgiving Day Chicago Times-Herald race of November 28, 1895. Press coverage of the event first aroused significant American interest in the automobile. With auto construction and racing dominated by France, the French automobile club ACF staged a number of major international races from or to Paris, connecting with another major city, in France or elsewhere in Europe. Brooklands, in Surrey, was the first purpose-built motor racing venue, opening in June 1907, it featured a 4.43 km concrete track with high-speed banked corners. One of the oldest existing purpose-built automobile racing circuits in the United States, still in use, is the 2.5-mile-long Indianapolis Motor Speedway in Speedway, Indiana.
It is the largest capacity sports venue of any variety worldwide, with a top capacity of some 257,000+ seated spectators. NASCAR was founded by Bill France, Sr. on February 21, 1948, with the help of several other drivers of the time. The first NASCAR "Strictly Stock" race was held on June 19, 1949, at Daytona Beach, Florida. From 1962, sports cars temporarily took a back seat to GT cars, with the FIA replacing the World Championship for Sports Cars with the International Championship for GT Manufacturers. From 1972 through 2003, NASCAR's premier series was called the Winston Cup Series, sponsored by R. J. Reynolds Tobacco Company cigarette brand Winston; the changes that resulted from RJR's involvement, as well as the reduction of the schedule from 48 to 31 races a year, established 1972 as the beginning of NASCAR's "modern era". The IMSA GT Series evolved into the American Le Mans Series, which ran its first season in 1999; the European races became the related Le Mans Series, both of which mix prototypes and GTs.
Turismo Carretera is a popular touring car racing series in Argentina, the oldest car racing series still active in the world. The first TC competition took place in 1937 with 12 races, each in a different province. Future Formula One star Juan Manuel Fangio won the 1940 and 1941 editions of the TC, it was during this time that the series' Chevrolet-Ford rivalry began, with Ford acquiring most of its historical victories. The two most popular varieties of open wheel road racing are the IndyCar Series. Formula One is a European-based series that runs only street race tracks; these cars are based around technology and their aerodynamics. With the highest speed record set in 2005 by Juan Pablo Montoya hitting 373 kph; some of the most prominent races are the Monaco Grand Prix, the Italian Grand Prix, the British Grand Prix. The season ends with the crowning of the World Championship for constructors. In single-seater, the wheels are not covered, the cars have aerofoil wings front and rear to produce downforce and enhance adhesion to the track.
In Europe and Asia, open-wheeled racing is referred to as'Formula', with appropriate hierarchical suffixes. In North America, the'Formula' terminology is not followed; the sport is arranged to follow an international format, a regional format, and/or a domestic, or country-specific, format. In the United States, the most popular series is the National Championship, more known as the IndyCar Series and known as CART; the cars have traditionally been similar though less technologically sophisticated than F1 cars, with more restrictions on technology aimed at controlling costs. While these cars are not as technologically advanced, they are faster because they compete on oval race tracks, being able to average a lap at 388 kph; the series' biggest race is the Indianapolis 500, referred to as "The Greatest Spectacle in Racing" due to being the longest continuously run race and having the largest crowd for a single-day sporting event. The other major international single-seater racing series is Formula 2.
Regional series include Formula Nippon and Formula V6 Asia, Formula Renault 3.5, Formula Three, For
In automotive engineering, a longitudinal engine is an internal combustion engine in which the crankshaft is oriented along the long axis of the vehicle, front to back. This type of motor is used for rear-wheel drive cars, except for some Audi and SAAB models equipped with longitudinal engines in front wheel drive. In front-wheel drive cars a transverse engine is used. Trucks have longitudinal engines with rear-wheel drive. For motorcycles, the use of a particular type depends on the drive: in case of a chain or belt drive a transverse engine is used, with shaft drives a longitudinal engine. Longitudinal engines in motorcycles do have one disadvantage: the "tipping point" of the crankshaft tilts along the entire motorcycle to a greater or lesser degree when accelerating; this is resolved by having other components, such as the generator and the gearbox, rotate in the opposite direction to the crankshaft. Most larger, "premium" vehicles use this engine orientation, both front and rear wheel driven, because powerful engines such as the inline-6 and 90° big-bore V8 are too long to fit in a FF transverse engine bay, while most mainstream modern vehicles use front wheel drive along with a transverse engine arrangement.
Cars with longitudinal engines have a smaller minimum turning circle than those with transverse engines. This is because there is more space to the sides of the engine, allowing deeper wheel arches so the front wheels are able to turn through a greater angle; this is a list of typical examples of types of engines which can be placed in motor vehicles: in-line or straight engine — where two, four, five and eight cylinders are placed in a single plane. V engine — where two, six, ten, twelve, or sixteen cylinders are placed in two separate planes, looking like a "V" when viewed from the end of the crankshaft. Flat or boxer engine — where two, six or more cylinders are arranged in two diametrically horizontally opposed planes. W engine — where two vee engines are siamesed together, where at eight, twelve or sixteen cylinders are arranged in four separate planes
A manual transmission known as a manual gearbox, a standard transmission or colloquially in some countries as a stick shift, is a type of transmission used in motor vehicle applications. It uses a driver-operated clutch engaged and disengaged by a foot pedal or hand lever, for regulating torque transfer from the engine to the transmission. A conventional 5-speed manual transmission is the standard equipment in a base-model vehicle, while more expensive manual vehicles are equipped with a 6-speed transmission instead; the number of forward gear ratios is expressed for automatic transmissions as well. Manual transmissions feature a driver-operated clutch and a movable gear stick. Most automobile manual transmissions allow the driver to select any forward gear ratio at any time, but some, such as those mounted on motorcycles and some types of racing cars, only allow the driver to select the next-higher or next-lower gear; this type of transmission is sometimes called a sequential manual transmission.
In a manual transmission, the flywheel is attached to the engine's crankshaft and spins along with it. The clutch disc is in between the pressure plate and the flywheel, is held against the flywheel under pressure from the pressure plate; when the engine is running and the clutch is engaged, the flywheel spins the clutch plate and hence the transmission. As the clutch pedal is depressed, the throw out bearing is activated, which causes the pressure plate to stop applying pressure to the clutch disk; this makes the clutch plate stop receiving power from the engine, so that the gear can be shifted without damaging the transmission. When the clutch pedal is released, the throw out bearing is deactivated, the clutch disk is again held against the flywheel, allowing it to start receiving power from the engine. Manual transmissions are characterized by gear ratios that are selectable by locking selected gear pairs to the output shaft inside the transmission. Conversely, most automatic transmissions feature epicyclic gearing controlled by brake bands and/or clutch packs to select gear ratio.
Automatic transmissions that allow the driver to manually select the current gear are called manumatics. A manual-style transmission operated by computer is called an automated transmission rather than an automatic though no distinction between the two terms need be made. Contemporary automobile manual transmissions use four to six forward gear ratios and one reverse gear, although consumer automobile manual transmissions have been built with as few as two and as many as seven gears. Transmissions for heavy trucks and other heavy equipment have 8 to 25 gears so the transmission can offer both a wide range of gears and close gear ratios to keep the engine running in the power band. Operating aforementioned transmissions use the same pattern of shifter movement with a single or multiple switches to engage the next sequence of gear selection. French inventors Louis-Rene Panhard and Emile Levassor are credited with the development of the first modern manual transmission, they demonstrated their three-speed transmission in 1894 and the basic design is still the starting point for most contemporary manual transmissions.
This type of transmission offered multiple gear ratios and, in most cases, reverse. The gears were engaged by sliding them on their shafts, which required careful timing and throttle manipulation when shifting, so the gears would be spinning at the same speed when engaged; these transmissions are called sliding mesh transmissions or sometimes crash boxes, because of the difficulty in changing gears and the loud grinding sound that accompanied. Newer manual transmissions on 4+-wheeled vehicles have all gears mesh at all times and are referred to as constant-mesh transmissions, with "synchro-mesh" being a further refinement of the constant mesh principle. In both types, a particular gear combination can only be engaged when the two parts to engage are at the same speed. To shift to a higher gear, the transmission is put in neutral and the engine allowed to slow down until the transmission parts for the next gear are at a proper speed to engage; the vehicle slows while in neutral and that slows other transmission parts, so the time in neutral depends on the grade and other such factors.
To shift to a lower gear, the transmission is put in neutral and the throttle is used to speed up the engine and thus the relevant transmission parts, to match speeds for engaging the next lower gear. For both upshifts and downshifts, the clutch is released; some drivers use the clutch only for starting from a stop, shifts are done without the clutch. Other drivers will depress the clutch, shift to neutral engage the clutch momentarily to force transmission parts to match the engine speed depress the clutch again to shift to the next gear, a process called double clutching. Double clutching is easier to get smooth, as speeds that are close but not quite matched need to speed up or slow down only transmission parts, whereas with the clutch engaged to the engine, mismatched speeds are fighting the rotational inertia and power of the engine. Though automobile and light truck transmissions are now universally synchronized, transmissions for heavy trucks and machinery, motor
The United Kingdom the United Kingdom of Great Britain and Northern Ireland, sometimes referred to as Britain, is a sovereign country located off the north-western coast of the European mainland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, many smaller islands. Northern Ireland is the only part of the United Kingdom that shares a land border with another sovereign state, the Republic of Ireland. Apart from this land border, the United Kingdom is surrounded by the Atlantic Ocean, with the North Sea to the east, the English Channel to the south and the Celtic Sea to the south-west, giving it the 12th-longest coastline in the world; the Irish Sea lies between Great Ireland. With an area of 242,500 square kilometres, the United Kingdom is the 78th-largest sovereign state in the world, it is the 22nd-most populous country, with an estimated 66.0 million inhabitants in 2017. The UK is constitutional monarchy; the current monarch is Queen Elizabeth II, who has reigned since 1952, making her the longest-serving current head of state.
The United Kingdom's capital and largest city is London, a global city and financial centre with an urban area population of 10.3 million. Other major urban areas in the UK include Greater Manchester, the West Midlands and West Yorkshire conurbations, Greater Glasgow and the Liverpool Built-up Area; the United Kingdom consists of four constituent countries: England, Scotland and Northern Ireland. Their capitals are London, Edinburgh and Belfast, respectively. Apart from England, the countries have their own devolved governments, each with varying powers, but such power is delegated by the Parliament of the United Kingdom, which may enact laws unilaterally altering or abolishing devolution; the nearby Isle of Man, Bailiwick of Guernsey and Bailiwick of Jersey are not part of the UK, being Crown dependencies with the British Government responsible for defence and international representation. The medieval conquest and subsequent annexation of Wales by the Kingdom of England, followed by the union between England and Scotland in 1707 to form the Kingdom of Great Britain, the union in 1801 of Great Britain with the Kingdom of Ireland created the United Kingdom of Great Britain and Ireland.
Five-sixths of Ireland seceded from the UK in 1922, leaving the present formulation of the United Kingdom of Great Britain and Northern Ireland. There are fourteen British Overseas Territories, the remnants of the British Empire which, at its height in the 1920s, encompassed a quarter of the world's land mass and was the largest empire in history. British influence can be observed in the language and political systems of many of its former colonies; the United Kingdom is a developed country and has the world's fifth-largest economy by nominal GDP and ninth-largest economy by purchasing power parity. It has a high-income economy and has a high Human Development Index rating, ranking 14th in the world, it was the world's first industrialised country and the world's foremost power during the 19th and early 20th centuries. The UK remains a great power, with considerable economic, military and political influence internationally, it is sixth in military expenditure in the world. It has been a permanent member of the United Nations Security Council since its first session in 1946.
It has been a leading member state of the European Union and its predecessor, the European Economic Community, since 1973. The United Kingdom is a member of the Commonwealth of Nations, the Council of Europe, the G7, the G20, NATO, the Organisation for Economic Co-operation and Development and the World Trade Organization; the 1707 Acts of Union declared that the kingdoms of England and Scotland were "United into One Kingdom by the Name of Great Britain". The term "United Kingdom" has been used as a description for the former kingdom of Great Britain, although its official name from 1707 to 1800 was "Great Britain"; the Acts of Union 1800 united the kingdom of Great Britain and the kingdom of Ireland in 1801, forming the United Kingdom of Great Britain and Ireland. Following the partition of Ireland and the independence of the Irish Free State in 1922, which left Northern Ireland as the only part of the island of Ireland within the United Kingdom, the name was changed to the "United Kingdom of Great Britain and Northern Ireland".
Although the United Kingdom is a sovereign country, Scotland and Northern Ireland are widely referred to as countries. The UK Prime Minister's website has used the phrase "countries within a country" to describe the United Kingdom; some statistical summaries, such as those for the twelve NUTS 1 regions of the United Kingdom refer to Scotland and Northern Ireland as "regions". Northern Ireland is referred to as a "province". With regard to Northern Ireland, the descriptive name used "can be controversial, with the choice revealing one's political preferences"; the term "Great Britain" conventionally refers to the island of Great Britain, or politically to England and Wales in combination. However, it is sometimes used as a loose synonym for the United Kingdom as a whole; the term "Britain" is used both as a synonym for Great Britain, as a synonym for the United Kingdom. Usage is mixed, with the BBC preferring to use Britain as shorthand only for Great Britain and the UK Government, while accepting that both terms refer to the United K