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Kammback
A Kammback—also known as a Kamm tail or K-tail—is an :Automotive styling features, automotive styling feature wherein the rear of the car slopes downwards before being abruptly cut off with a vertical or near-vertical surface. A Kammback improves aerodynamic drag, thus improving efficiency and fuel consumption, while maintaining a practical shape for a vehicle. The Kammback is named after German Aerodynamics, aerodynamicist Wunibald Kamm for his work developing the design in the 1930s. Some vehicles incorporate the kammback design based on aerodynamic principles, while some use a cut-off tail as a design or marketing feature. Origins As the speed of cars increased during the 1920s and 1930s, designers observed and began to apply the principles of automotive aerodynamics. As Drag (physics), aerodynamic drag increases, more energy, and thus more fuel, are required to advance a vehicle. In 1922, Paul Jaray patented a car based on a teardrop profile (i.e. with a rounded n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wunibald Kamm
Wunibald Kamm (April 26, 1893 – October 11, 1966) was an automobile designer, engineer, and aerodynamicist. He is best known for his breakthrough in reducing car turbulence at high speeds; the style of car bodywork based on his research has come to be known as a Kammback or a Kamm-tail. Design One goal of automotive aerodynamics is to reduce the air turbulence, or drag, caused by the shape of the automobile. Aerodynamic drag may be reduced either by reduction of frontal area or by reduction of drag coefficient. In bodies such as automobiles and airships, drag decreases after the rear of a car's cross-sectional area is reduced to fifty percent of the car's maximum cross section; "the best position is nearer 45 per cent of the length, and ... to have this maximum cross- section nearer the rear end than the front, and its drag has proved even less". There are other aspects of the car's design such as keeping the flow of air attached to the body far to the back of the car as pos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chevrolet Vega
The Chevrolet Vega is a Subcompact car, subcompact automobile that was manufactured and marketed by General Motors, GM's Chevrolet subdivision from 1970 to 1977. Available in two-door hatchback, notchback, station wagon, wagon, and sedan delivery body styles, all models were powered by an inline-four engine, inline four-cylinder engine with a lightweight, aluminum alloy cylinder block. The Vega first went on sale in Chevrolet dealerships on September 10, 1970. Variants included the Chevrolet Cosworth Vega, Cosworth Vega, a short-lived limited-production performance model, introduced in the spring of 1975. The Vega received praise and awards at its introduction, including 1971 Motor Trend Car of the Year, ''Motor Trend'' Car of the Year. Subsequently, the car became widely known for a range of problems related to its engineering, reliability, safety, propensity to rust, and engine durability. Despite a series of Product recall, recalls and design upgrades, the Vega's problems ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automotive Aerodynamics
Automotive aerodynamics is the study of the aerodynamics of road vehicles. Its main goals are reducing drag and wind noise, minimizing noise emission, and preventing undesired lift forces and other causes of aerodynamic instability at high speeds. Air is also considered a fluid in this case. For some classes of racing vehicles, it may also be important to produce downforce to improve traction and thus cornering abilities. History The frictional force of aerodynamic drag increases significantly with vehicle speed. As early as the 1920s engineers began to consider automobile shape in reducing aerodynamic drag at higher speeds. By the 1950s German and British automotive engineers were systematically analyzing the effects of automotive drag for the higher performance vehicles. By the late 1960s scientists also became aware of the significant increase in sound levels emitted by automobiles at high speed. These effects were understood to increase the intensity of sound levels for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ford GT40 (rear)
The Ford GT40 is a high-performance endurance racing car commissioned by the Ford Motor Company. It grew out of the "Ford GT" (for Grand Touring) project, an effort to compete in European long-distance sports car races, against Ferrari, which won the prestigious 24 Hours of Le Mans race from 1960 to 1965. Ford succeeded with the GT40, winning the 1966 through 1969 races. The effort began in the early 1960s when Ford Advanced Vehicles began to build the GT40 Mk I, based upon the Lola Mk6, at their base in Slough, UK. After disappointing race results, the engineering team was moved in 1964 to Dearborn, Michigan (Kar Kraft). The range was powered by a series of American-built Ford V8 engines modified for racing. In 1966, the GT40 Mk II broke Ferrari's streak at Le Mans, notching the first win for an American manufacturer in a major European race since Jimmy Murphy's triumph with Duesenberg at the 1921 French Grand Prix. In 1967, the Mk IV became the only car designed and built en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Borgward Hansa 2400
The Borgward Hansa 2400 was an executive six-cylinder saloon (E-segment) presented in 1951, and manufactured by the Bremen based auto-manufacturer Carl F. W. Borgward GmbH from 1952 until 1959. The car was launched as a four-door fastback saloon; a longer-wheelbase notchback version appeared a year later. The Hansa 2400 suffered from teething troubles including inadequate brakes and problems with the automatic transmission Borgward developed for it.http://www.zeit.de/auto/2011-07/borgward-pleite "Anfängliche Schwachstellen wie schlechte Bremsen und Mängel am von Borgward selbst entwickelten Automatikgetriebe bringen auch die 1953 hinzukommende Stufenheck-Variante in Verruf." In a small closely contested market, the large Borgwards lost out to less flamboyant models from the German south. Chronology and design The Hansa 2400 commenced production in 1952 as a large fastback saloon, its profile reminiscent of the recently introduced Hudson Super Wasp. It had presence. Unusu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid Electric Vehicle
A hybrid electric vehicle (HEV) is a type of hybrid vehicle that combines a conventional internal combustion engine (ICE) system with an electric propulsion system ( hybrid vehicle drivetrain). The presence of the electric powertrain is intended to achieve either better fuel economy than a conventional vehicle or better performance. There is a variety of HEV types and the degree to which each function as an electric vehicle (EV) also varies. The most common form of HEV is the hybrid electric car, although hybrid electric trucks (pickups and tractors), buses, boats and aircraft also exist. Modern HEVs make use of efficiency-improving technologies such as regenerative brakes which convert the vehicle's kinetic energy to electric energy, which is stored in a battery or supercapacitor. Some varieties of HEV use an internal combustion engine to turn an electrical generator, which either recharges the vehicle's batteries or directly powers its electric drive motors; this combinatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2011 Audi A7 (4G) 3
Eleven or 11 may refer to: *11 (number), the natural number following 10 and preceding 12 * one of the years 11 BC, AD 11, 1911, 2011, or any year ending in 11 Literature * ''Eleven'' (novel), a 2006 novel by British author David Llewellyn *''Eleven'', a 1970 collection of short stories by Patricia Highsmith *''Eleven'', a 2004 children's novel in The Winnie Years by Lauren Myracle *''Eleven'', a 2008 children's novel by Patricia Reilly Giff *''Eleven'', a short story by Sandra Cisneros Music *Eleven (band), an American rock band * Eleven: A Music Company, an Australian record label *Up to eleven, an idiom from popular culture, coined in the movie ''This Is Spinal Tap'' Albums * ''11'' (The Smithereens album), 1989 * ''11'' (Ua album), 1996 * ''11'' (Bryan Adams album), 2008 * ''11'' (Sault album), 2022 * ''Eleven'' (Harry Connick, Jr. album), 1992 * ''Eleven'' (22-Pistepirkko album), 1998 * ''Eleven'' (Sugarcult album), 1999 * ''Eleven'' (B'z album), 2000 * ''Eleven'' (Reamonn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2009 Toyota Prius (ZVW30R) Liftback (2011-12-06) 02
9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra and Gupta started curving the bottom vertical line coming up with a -look-alike. The Nagari continued the bottom stroke to make a circle and enclose the 3-look-alike, in much the same way that the sign @ encircles a lowercase ''a''. As time went on, the enclosing circle became bigger and its line continued beyond the circle downwards, as the 3-look-alike became smaller. Soon, all that was left of the 3-look-alike was a squiggle. The Arabs simply connected that squiggle to the downward stroke at the middle and subsequent European change was purely cosmetic. While the shape of the glyph for the digit 9 has an ascender in most modern typefaces, in typefaces with text figures the character usually has a descender, as, for example, in . The mod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cunningham C-5R
The Cunningham C-5R was a sports car developed in 1953 for the Briggs Cunningham racing team. Design The C-5R was the successor to the C-4R and was built for use in the 1953 24 Hours of Le Mans. The open sports car had a Chrysler V8 engine, that developed at 5200 rpm. The C-5R had a live axle at the front, which was carried over from the Kurtis Kraft - Indianapolis - Monoposto racing cars at the suggestion of Briggs Cunningham. There was torsion bar suspension front and rear. The vehicle had a tubular spaceframe chassis and an aluminum body. Racing history As planned, the C-5R made its racing debut at the 1953 24 Hours of Le Mans. Cunningham had been coming to the Sarthe with his racing cars regularly since 1950 for long-distance races and had already been able to gain some experience. The team presented long-time works driver Phil Walters and John Fitch as drivers another American as his partner. Speed measurements were carried out at Le Mans for the first time and the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sports Car Racing
Sports car racing is a form of motorsport road racing which utilises sports cars that have two seats and enclosed wheels. They may be purpose-built prototypes or grand tourers based on road-going models. Broadly speaking, sports car racing is one of the main types of circuit auto racing, alongside open-wheel single-seater racing (such as Formula One), touring car racing (such as the British Touring Car Championship, which is based on 'saloon cars' as opposed to the 'exotics' seen in sports cars) and stock car racing (such as NASCAR). Sports car races are often, though not always, endurance races that are run over relatively large distances, and there is usually a larger emphasis placed on the reliability and efficiency of the car as opposed to outright speed of the driver. The FIA World Endurance Championship is an example of a sports car racing series. A type of hybrid between the purism of open-wheelers and the familiarity of touring car racing, this style is often associate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
