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Sequential Manual Transmission
A sequential manual transmission, also known as a sequential gearbox, or a sequential transmission, is a type of non-synchronous manual transmission used mostly for motorcycles and racing cars. It produces faster shift times than traditional synchronized manual transmissions, and restricts the driver to selecting either the next or previous gear, in a successive order. Design A sequential manual transmission is unsynchronized, and allows the driver to select either the next gear (e.g. shifting from first gear to second gear) or the previous gear (e.g., shifting from third gear to second gear), operated either via electronic paddle-shifters mounted behind the steering wheel or with a sequential shifter. This restriction avoids accidentally selecting the wrong gear; however, it also prevents the driver from deliberately "skipping" gears. The use of dog clutches (rather than synchromesh) results in faster shift speeds than a conventional manual transmission. On a sequentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sequential Gearbox Animation
In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is called the ''length'' of the sequence. Unlike a set, the same elements can appear multiple times at different positions in a sequence, and unlike a set, the order does matter. Formally, a sequence can be defined as a function from natural numbers (the positions of elements in the sequence) to the elements at each position. The notion of a sequence can be generalized to an indexed family, defined as a function from an ''arbitrary'' index set. For example, (M, A, R, Y) is a sequence of letters with the letter 'M' first and 'Y' last. This sequence differs from (A, R, M, Y). Also, the sequence (1, 1, 2, 3, 5, 8), which contains the number 1 at two different positions, is a valid sequence. Sequences can be ''finite'', as in these examples, or ''infi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Underbone
An underbone is a type of motorcycle that uses structural tube framing with an overlay of plastic or non-structural body panels and contrasts with monocoque or unibody designs where pressed steel serves both as the vehicle's structure and bodywork. Outside Asia, the term underbone is commonly misunderstood to refer to any lightweight motorcycle that uses the construction type, known colloquially as ''step-throughs'', ''mopeds'' or ''scooters'' (see Scooter (motorcycle)). An underbone motorcycle may share its fuel tank position and tube framing, along with fitted bodywork and splash guards with a scooter while the wheel dimensions, engine layouts, and power transmission are similar with conventional motorcycles. Unlike conventional motorcycles, underbones are mostly popular in Asia and Greece. In Indonesia, the fourth most populous country in the world, and the largest country in Southeast Asia, almost half the population have a motorcycle, most of which are underbones and s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peugeot 905
The Peugeot 905 is a sports-prototype racing car built by Peugeot's racing department, Peugeot Talbot Sport. The car was initially unveiled in February 1990 and was developed throughout 1990 before making its race debut in the final two races of the 1990 World Sportscar Championship season (Montréal and Mexico). The car won the 24 Hours of Le Mans endurance race in 1992 with the team of Derek Warwick, Yannick Dalmas, and Mark Blundell. This win was followed in 1993 by the team of Geoff Brabham, Christophe Bouchut, and Éric Hélary, in the 905B. In addition to that, the car won both the driver’s and the team’s title at the World Sportscar Championship in 1992. The Peugeot 905 participated in 17 races in its career, winning 9 of them. History Inception In November 1988 Peugeot Talbot Sport, established under the control of Jean Todt at Vélizy-Villacoublay, in the suburbs of Paris, announced the launch of the 905 project to compete in the 1991 World Sport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gearshift
A gear stick (rarely spelled ''gearstick''), gear lever (both UK English), gearshift or shifter (both U.S. English), more formally known as a transmission lever, is a metal lever attached to the transmission of an automobile. The term ''gear stick'' mostly refers to the shift lever of a manual transmission, while in an automatic transmission, a similar lever is known as a gear selector. A gear stick will normally be used to change gear whilst depressing the clutch pedal with the left foot to disengage the engine from the drivetrain and wheels. Automatic transmission vehicles, including hydraulic (torque converter) automatic transmissions, automated manual and older semi-automatic transmissions (specifically clutchless manuals), like '' VW Autostick'', and those with continuously variable transmissions, do not require a physical clutch pedal. Alternative positions Gear sticks are most commonly found between the front seats of the vehicle, either on the center console (sometim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formula One
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Williams FW14
The Williams FW14 is a Formula One car designed by Adrian Newey, used by the Williams team during the 1991 and 1992 Formula One seasons. Overview The car was born out of necessity, as the 1989 and 1990 seasons had proven competitive for Williams, but they had underachieved in their own and Renault's eyes. Newey started work on the new car soon after joining the team from March in mid-1990. He had designed a series of aerodynamically efficient and very effective cars for March on a limited budget, so with Williams's greater resources and money he was able to fully develop his ideas. The all-new design (with the exception of the engine) showed enough promise to tempt Nigel Mansell to shelve his plans to retire from the sport and rejoin Williams from Ferrari. Powered by a 3.5-litre V10 Renault engine with its design and development led by Bernard Dudot, the car is considered one of the most technologically sophisticated to have competed in Formula One. By 1992 the FW14B featured ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lotus 12
The Lotus 12 was a Formula Two and Formula One racing car. Design Colin Chapman's first foray into single-seater racing, the 12 appeared in 1957. It featured a number of important innovations Chapman would use on later models. To better use the power of the Coventry Climax engine, it was designed, as usual, for low weight and low drag, relying on a space frame. It placed the driver as low as possible, reducing the height of transmission tunnel by way of a "conceptually brilliant" five-speed sequential-shift transaxle located in the back. This transaxle was designed by Richard Ansdale and Harry Mundy. The gearbox had a (long-undiagnosed) oil starvation problem, thus earned the nickname "Queerbox" for its unreliability. Although the first two examples of Lotus 12 had De Dion rear suspension, it also introduced a new suspension configuration with what came to be called "Chapman struts" in the rear, essentially a MacPherson strut with a fixed length halfshaft with universal joints ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Team Lotus
Team Lotus was the motorsport sister company of English sports car manufacturer Lotus Cars. The team ran cars in many motorsport categories including Formula One, Formula Two, Formula Ford, Formula Junior, IndyCar, and sports car racing. More than ten years after its last race, Team Lotus remained one of the most successful racing teams of all time, winning seven Formula One Constructors' titles, six Drivers' Championships, and the Indianapolis 500 in the United States between 1962 and 1978. Under the direction of founder and chief designer Colin Chapman, Lotus was responsible for many innovative and experimental developments in critical motorsport, in both technical and commercial arenas. The Lotus name returned to Formula One in 2010 as Tony Fernandes's Lotus Racing team. In 2011, Team Lotus's iconic black-and-gold livery returned to F1 as the livery of the Lotus Renault GP team, sponsored by Lotus Cars, and in 2012 the team was re-branded completely as Lotus F1 Team. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harry Mundy
Harry Mundy (1915–1988) was a British car engine designer and motoring magazine editor. He was educated at King Henry VIII School in Coventry and went on to serve his apprenticeship with Alvis. He left them in 1936 to join English Racing Automobiles (ERA) in Bourne, Lincolnshire as a draughtsman. Also at ERA was Walter Hassan who became a lifelong friend; the two would work together later at Jaguar on engine development. He left ERA in 1939 and returned to Coventry to work at the Morris Engines factory. After World War II he moved to British Racing Motors (BRM) in 1946 as head of the design office, being involved in the design of the BRM V16 Formula One engine, before moving on again in 1950 to Coventry Climax engines as chief designer working on the FWA engine. His career then took a change in direction and he moved into journalism becoming Technical Editor of ''The Autocar'' magazine in 1955 but while there he also worked on the design of the Ford based twin-cam engi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queerbox
The Queerbox was the nickname for an early sequential manual transaxle used by Lotus racing cars of the late-1950s and early-1960s, and was very similar in design and operation to a motorcycle gearbox. It was infamously unreliable. Lotus Twelve origins The Lotus Twelve was the first to use the infamous Lotus ''Queerbox'' transaxle. This was developed to be, in typical Colin Chapman fashion, the smallest and lightest five-speed transmission possible, also to have a low driveshaft line allowing a low driving position, thus lower centre of mass and air resistance. Chapman also chose a transaxle over the usual gearbox and rear axle layout, as had been used in the first Twelve, as this gave a lower polar moment of inertia. The initial design, the work of Chapman and Harry Mundy, began with the principle of the most compact layout, with the gear cluster arranged in a closely spaced stack, akin to a motorcycle transmission. As the gears shared common axes, and all teeth were cut to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cisitalia Grand Prix
The Cisitalia Grand Prix is a single-seater car for the postwar 1.5-litre supercharged Grand Prix class, built by Italian sports car manufacturer Cisitalia and introduced in 1949. It was designed on behalf of Cisitalia by Porsche between 1946–47, and is therefore also known by its Porsche project number, Typ 360. An extremely advanced design, it proved too complex to build for the small Italian firm—leading to a lengthy development and eventually to the financial downfall of the company. Between Cisitalia's 1949 liquidation and the fact that supercharged engines were banned for the 1952 Formula One season, the car never raced. The ''Type 360'' is also noticeable for using an early form of sequential manual transmission, and was one of the first race cars to do so. History The car was commissioned by Piero Dusio in 1946. Dusio paid a large sum of money upfront, part of which was used to free Ferdinand Porsche from the French prison in which he was being held effectively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porsche
Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see below), is a German automobile manufacturer specializing in high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany. The company is owned by Volkswagen AG, a controlling stake of which is owned by Porsche Automobil Holding SE. Porsche's current lineup includes the 718 Boxster/Cayman, 911 (992), Panamera, Macan, Cayenne and Taycan. History Origin Ferdinand Porsche (1875–1951) founded the company called "Dr. Ing. h. c. F. Porsche GmbH" with Adolf Rosenberger and Anton Piëch in 1931. The main offices was at Kronenstraße 24 in the centre of Stuttgart. Initially, the company offered motor vehicle development work and consulting, but did not build any cars under its own name. One of the first assignments the new company received was from the German government to design a car for the people; that is, a ''Volkswagen''. This resulted in the Volkswagen Beetle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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