Kamm-tail
A Kammback—also known as a Kamm tail or K-tail—is an 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 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 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 nose and long, tapered tail) to minimize the aerodynamic dr ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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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]   |
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'69 Fiat 850 Coupe, Example Of Kammback
69 may refer to: * 69 (number) * A year, primarily 69 BC, AD 69, 1969, or 2069 *69 (sex position) Arts and media Music * ''69'', a 1988 album by A.R. Kane * "'69", a song by Deep Purple from ''Abandon'' * Major 6 add 9, a jazz chord * "Summer of '69", a song by Bryan Adams * 6ix9ine, also known as Tekashi69, American rapper * ''Day69'', album by 6ix9ine * "69", a song by T-Pain from his 2007 album '' Epiphany'' Other media * ''69'', a novel by Ryu Murakami * ''69'', a 2004 film based on the Murakami novel Other uses * Lake 69, a small lake in the region of Áncash, Peru * *69, the Last Call Return feature code in the US and Canada * List of highways numbered 69 ** Texas State Highway 112, formerly designated as State Highway 69 * ♋️, the symbol for the astrological sign Cancer See also * "34+35 "34+35" (pronounced "thirty-four thirty-five") is a song recorded by American singer Ariana Grande, included as the second track on her sixth studio album, '' Positions'' (20 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Nash Motors
Nash Motors Company was an American automobile manufacturer based in Kenosha, Wisconsin from 1916 to 1937. From 1937 to 1954, Nash Motors was the automotive division of the Nash-Kelvinator Corporation. Nash production continued from 1954 to 1957 after the creation of American Motors Corporation. In 1938 the firm debuted the heating and ventilation system which is still used today, unibody construction in 1941, seat belts in 1950, a US built compact car in 1950, and muscle cars in 1957. History Nash Motors was founded in 1916 by former General Motors president Charles W. Nash, who acquired the Thomas B. Jeffery Company. Jeffery's best-known automobile was the Rambler whose mass production from a plant in Kenosha began in 1902. The 1917 Nash Model 671 was the first vehicle produced to bear the name of the new company's founder. Sales were positive for 1918 at 10,283 units. More models were added in 1919 and sales rose to 27,081 for the year. Nash enjoyed decades of s ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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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]   |
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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]   |
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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]   |
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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]   |
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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]   |
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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]   |
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Cross Section (geometry)
In geometry and science, a cross section is the non-empty intersection of a solid body in three-dimensional space with a plane, or the analog in higher-dimensional spaces. Cutting an object into slices creates many parallel cross-sections. The boundary of a cross-section in three-dimensional space that is parallel to two of the axes, that is, parallel to the plane determined by these axes, is sometimes referred to as a contour line; for example, if a plane cuts through mountains of a raised-relief map parallel to the ground, the result is a contour line in two-dimensional space showing points on the surface of the mountains of equal elevation. In technical drawing a cross-section, being a projection of an object onto a plane that intersects it, is a common tool used to depict the internal arrangement of a 3-dimensional object in two dimensions. It is traditionally crosshatched with the style of crosshatching often indicating the types of materials being used. With computed ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |