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Ernest Henry (engineer)
Ernest Henry (1885 in Geneva, Switzerland – 1950 in Paris, France) was a mechanical engineer. He developed auto racing engines, and is especially well known for his work for Peugeot and Ballot, who dominated Grand Prix auto racing from 1912 to 1921. His engine design directly influenced Sunbeam Racing cars as early as 1914; the 1921 Grand Prix Sunbeams owe much to his work with Ballot and the 1922 Grand Prix Sunbeams were designed by him. His engine operational architecture was the precursor of modern engines. One biographer called him "perhaps the most brilliant engine designer ever"; another described one of his designs as "so technically advanced it could have landed from outer space". Henry's "theory, design and execution" of twin-cam engines was to guide engine development in Europe and then around the world for the next century. Early life and education After studying Applied Mechanics at Technicum (School of Engineering) in Geneva, Ernest Henry worked starting in ...
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Automotive Engineer
Automotive engineering, along with aerospace engineering and naval architecture, is a branch of vehicle engineering, incorporating elements of mechanical, electrical, electronic, software, and safety engineering as applied to the design, manufacture and operation of motorcycles, automobiles, and trucks and their respective engineering subsystems. It also includes modification of vehicles. Manufacturing domain deals with the creation and assembling the whole parts of automobiles is also included in it. The automotive engineering field is research intensive and involves direct application of mathematical models and formulas. The study of automotive engineering is to design, develop, fabricate, and test vehicles or vehicle components from the concept stage to production stage. Production, development, and manufacturing are the three major functions in this field. Disciplines Automobile engineering Automobile engineering is a branch study of engineering which teaches manufacturing, d ...
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Automobile Club De France
The Automobile Club of France (french: Automobile Club de France, links=no) (ACF) is a men's club founded on November 12, 1895 by Albert de Dion, Paul Meyan, and its first president, the Dutch-born Baron Etienne van Zuylen van Nijevelt. The Automobile Club of France, also known in French as "ACF" or "l'Auto", was initially located near the Paris Opera and benefited from a villa in the Bois de Boulogne. In 1898, the club moved to the exceptional site of the former "Place Louis XV" (currently Place de la Concorde) in order to offer its members more comfort in a prestigious setting. The club still occupies more than 10,000 square meters in the Hotels du Plessis-Bellière and Moreau, both located between the Hôtel de Crillon and the Hôtel de Coislin, where France signed a treaty by which it became the first nation ever to recognize the independence of the United States. The members of the Automobile Club of France enjoy several lounges, a swimming pool, a gym, a library containin ...
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1913 Indianapolis 500
The Third International 500-Mile Sweepstakes Race was held at the Indianapolis Motor Speedway on Friday, May 30, 1913. Frenchman Jules Goux became the first foreign-born, and first European winner of the Indianapolis 500. His margin of victory of 13 minutes, 8 seconds (approximately 7 laps) over second place Spencer Wishart still stands, as of 2022, as the largest margin of victory in Indy history. Race Summary After the entries in the first two years of the Indianapolis 500 had been almost exclusively American, 1913 saw six drivers travel to the United States from Europe to enter, likely attracted by the impressive $20,000 first prize (). A total of 27 cars would meet the 75 mile per hour qualifying speed, led by Jack Tower at 88.230 mph. The starting grid was determined by a random draw of names, and Caleb Bragg would be given the pole. Tower's car turned over on the southwest turn on lap 51, causing him to sustain a broken leg and his riding mechanic, Lee Dunning, to ...
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Racing Motorcycle
Motorcycle racing (also called moto racing and motorbike racing) is the motorcycle sport of racing motorcycles. Major varieties include motorcycle road racing and off-road racing, both either on circuits or open courses, and track racing. Other categories include hill climbs, drag racing and land speed record trials. Categories The FIM classifies motorcycle racing in the following four main categories. Each category has several sub categories. Road racing Road racing is a form of motorcycle racing held on paved road surfaces. The races can be held either on a purpose-built closed circuit or on a street circuit utilizing temporarily closed public roads. Traditional road racing Historically, "road racing" meant a course on closed public roads. This was once commonplace but currently only a few such circuits have survived, mostly in Europe. Races take place on public roads which have been temporarily closed to the public by legal orders from the local legislature. Two c ...
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Peugeot 500 M
The Peugeot 500 M (1913-1914) was a French racing motorcycle designed by Ernest Henry in 1913. It was a "technical tour de force" as the first motorcycle ever designed with a dual overhead camshaft. It also used a multi-valve cylinder head, with four valves per cylinder. Development and technology The Swiss engineer Ernest Henry adapted his incredibly successful Peugeot four-cylinder automobile racing engine (1912) for a racing motorcycle. The 500M used a parallel twin-cylinder engine, with dual overhead camshafts driven by a cascade of gears between the cylinders, with four-valve cylinder heads. The 500M was the most technically advanced motorcycle in the world when introduced. However, the design was ahead of the metallurgy available at the time, and suffered from cracking between the valve seats. While the engine was incredibly advanced, power transmission was a single speed via direct belt drive. At the rear wheel the Peugeot had a pedal-operated drum brake. Front suspe ...
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Straight-twin Engine
A straight-twin engine, also known as an inline-twin, vertical-twin, or parallel-twin, is a two-cylinder piston engine whose cylinders are arranged in a line along a common crankshaft. Straight-twin engines are primarily used in motorcycles; other uses include automobiles, marine vessels, snowmobiles, Jet Skis, all-terrain vehicles, tractors and ultralight aircraft. Various different crankshaft configurations have been used for straight-twin engines, with the most common being 360 degrees, 180 degrees and 270 degrees. Terminology The straight-twin layout is also referred to as "parallel-twin", "vertical-twin" and "inline-twin". Some of these terms originally had specific meanings relating to the crankshaft angle or engine orientation, however they are often also used interchangeably. In the United Kingdom, the term "parallel-twin" is traditionally used for engines with a crankshaft angle of 360 degrees, since the two pistons are in the same direction (i.e. parallel to each ...
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Dry Sump
A dry-sump system is a method to manage the lubricating motor oil in four-stroke and large two-stroke piston driven internal combustion engines. The dry-sump system uses two or more oil pumps and a separate oil reservoir, as opposed to a conventional wet-sump system, which uses only the main sump (U.S.: oil pan) below the engine and a single pump. A dry-sump engine requires a pressure relief valve to regulate negative pressure inside the engine, so internal seals are not inverted. Dry-sumps are common on larger diesel engines such as those used in ships, as well as gasoline engines used in racing cars, aerobatic aircraft, high-performance personal watercraft and motorcycles. Dry sump lubrication may be chosen for these applications due to increased reliability, oil capacity, reduction of oil starvation under high g-loads and/or other technical or performance reasons. Dry sump systems may not be suitable for all applications due to increased cost, complexity, and/or bulk, ...
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Camshaft
A camshaft is a shaft that contains a row of pointed cams, in order to convert rotational motion to reciprocating motion. Camshafts are used in piston engines (to operate the intake and exhaust valves), mechanically controlled ignition systems and early electric motor speed controllers. Camshafts in piston engines are usually made from steel or cast iron, and the shape of the cams greatly affects the engine's characteristics. History Trip hammers are one of the early uses of a form of cam to convert rotating motion, e.g. from a waterwheel, into the reciprocating motion of a hammer used in forging or to pound grain. Evidence for these exists back to the Han Dynasty in China, and they were widespread by the medieval period. The camshaft was described in 1206 by engineer Al-Jazari. He employed it as part of his automata, water-raising machines, and water clocks such as the castle clock. Once the rotative version of the steam engine was developed in the late 18th century, t ...
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Formula 1
Formula One (also known as Formula 1 or F1) is the highest class of international racing for open-wheel single-seater formula racing cars sanctioned by the Fédération Internationale de l'Automobile (FIA). The World Drivers' Championship, which became the FIA Formula One World Championship in 1981, has been one of the premier forms of racing around the world since its inaugural season in 1950. The word ''formula'' in the name refers to the set of rules to which all participants' cars must conform. A Formula One season consists of a series of races, known as ''Grands Prix'', which take place worldwide on both purpose-built circuits and closed public roads. A points system is used at Grands Prix to determine two annual World Championships: one for drivers, the other for constructors. Each driver must hold a valid Super Licence, the highest class of racing licence issued by the FIA. The races must run on tracks graded "1" (formerly "A"), the highest grade-rating issued ...
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Coupe De La Sarthe
A coupe or coupé (, ) is a passenger car with a sloping or truncated rear roofline and two doors. The term ''coupé'' was first applied to horse-drawn carriages for two passengers without rear-facing seats. It comes from the French past participle of ''couper'', "cut". __TOC__ Etymology and pronunciation () is based on the past participle of the French verb ("to cut") and thus indicates a car which has been "cut" or made shorter than standard. It was first applied to horse-drawn carriages for two passengers without rear-facing seats. These or ("clipped carriages") were eventually clipped to .. There are two common pronunciations in English: * () – the anglicized version of the French pronunciation of ''coupé''. * () – as a spelling pronunciation when the word is written without an accent. This is the usual pronunciation and spelling in the United States, with the pronunciation entering American vernacular no later than 1936 and featuring in the Beach Boys' hi ...
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Mont Ventoux Hill Climb
Mont Ventoux Hill Climb is a car and motorcycle hillclimbing race course near Avignon in France. The course, up Mont Ventoux, starts from the village of Bédoin and rises for , to the observatory at the summit, for an average gradient of 7.4%. In 1970: "Andre Willem of Belgium was killed June 20 in practice for the Mont Ventoux Hill Climb near Carpentras. His Lotus Formula 3 car slid off the road and struck a tree."''Oregonian'', June 30, 1970, Page 42. A shortened version of the course was used in 1976. A revival meeting called "Ronde du Ventoux" was held in 2009. Winners of the Mont Ventoux Hill Climb Key: R = Course Record. See also * European Hill Climb Championship The FIA European Hill Climb Championship (FIA EHC) is an FIA-run motorsport competition held across Europe on closed public road courses. Unlike circuit racing, each driver competes alone, starting from a point at the base of a mountain and reac ... * Championnat de France de la Montagne Footnotes {{Refl ...
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1912 French Grand Prix
The 1912 French Grand Prix was a Grand Prix motor race held at Dieppe on 25–26 June 1912. The Race The race was run over two days with the drivers completing ten laps on each day and their times being aggregated to produce the winner (similar to a modern rally race). Coupe de l'Auto cars competed alongside Grand Prix cars. The coupe cars were limited to 3 litre engines. The only restriction on the Grand Prix cars was that cars must be no wider than 1.75 metres. Riding mechanic Jean Bassignano was killed in a lap 3 crash when his driver Léon Collinet put a wheel off and flipped. 47 cars started the race at 30 second intervals, with Victor Rigal's Sunbeam the first to start. Victor Hemery, driving a Lorraine-Dietrich, was the first to complete a lap, but David Bruce-Brown's Fiat led on time after lap one and retained the lead overnight, more than two minutes ahead of Georges Boillot's Peugeot. Louis Wagner was third at the halfway stage. During the second day, Bruce-B ...
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