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Praga R1R
The Praga R1R is a mid-engined sports car produced by Praga. The R1R represents the first road car made by Praga in 68 years. Because of the 68-year long term hiatus, Praga decided to only make 68 units of the car. The car is based on the Praga R1, a race car by Praga that races in the Dutch Supercar Challenge and Britcar sports car racing. Specifications The car is powered by a Renault Sport-sourced 2.0-liter F4R turbocharged inline-four, which produces , the power being dependent on the customer's setup. The power is delivered to the rear wheels by a Hewland-built 6-speed semi-automatic transmission, and also making the R1R rear-wheel drive. The transmission also uses a centrifugal clutch. The car has a tendency to backfire constantly when making up-shifts and downshifts. The car has a measurement in curb weight, making the car extremely lightweight, thanks to the use of carbon fiber. The body also features a subframe back at the rear for the engine. The R1R also uses inb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praga (company)
Praga is a manufacturing company based in Prague, Czech Republic. The company produced automobiles, karts and planes. The Praga V3S 5-ton truck was used by the Czechoslovak Army for more than half a century. History Praga was founded in 1907 to build motor cars as a venture between entrepreneur František Ringhoffer and the company ''1. českomoravská továrna na stroje'' ("First Bohemian-Moravian Machine Works", later a founding part of the ČKD factories). Ringhoffer only stayed for one year and in 1909 the trade name ''Praga'' ("Prague" in Latin) was adopted. One of its early models was built under licence from the Italian company of Isotta Fraschini. Besides building its own vehicles Praga later also supplied engines and gearboxes for other vehicles, like aircraft and tanks. In 1929 Praga merged with ČKD, one of Czechoslovakia's largest engineering companies. In 1929 ČKD's BD motorcycle was re-branded under the Praga marque. This was an advanced four-stroke single- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mid-engine Design
In automotive engineering, a mid-engine layout describes the placement of an automobile engine in front of the rear-wheel axles, but behind the front axle. History The mid-engine, rear-wheel-drive format can be considered the original layout of automobiles. A 1901 Autocar was the first gasoline-powered automobile to use a drive shaft and placed the engine under the seat. This pioneering vehicle is now in the collection of the Smithsonian Institution. Benefits Mounting the engine in the middle instead of the front of the vehicle puts more weight over the rear tires, so they have more traction and provide more assistance to the front tires in braking the vehicle, with less chance of rear-wheel lockup and less chance of a skid or spin out. If the mid-engine vehicle is also rear-drive the added weight on the rear tires can also improve acceleration on slippery surfaces, providing much of the benefit of all-wheel-drive without the added weight and expense of all-wheel-drive com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ascari Race Resort
The Circuito Ascari resort is a private motorsports club for automotive enthusiasts and manufacturers with a long motor racing circuit near Ronda, a city in the Spanish Province of Málaga. It was founded, designed, and built by , a racing enthusiast and owner of Ascari Cars; the track was completed in 2003. In 2022, Zwart sold the facility to two companies in Switzerland and Argentina. History After making his fortune in the oil industry, Zwart participated in various racing events, including the British GT where he finished third in 1995 and EuroBOSS, where he was champion in 2003, 2006, and 2007; he purchased the Ascari Cars marque in 1999 and began considering where he and others could drive their supercars safely away from road traffic, which led him to purchase land near Ronda, in the southern part of Spain. Construction of the track began in 2000, and Zwart designed the track to conform with the existing contours of the site. It was completed in 2003. Final cost was estima ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpine Skiing
Alpine skiing, or downhill skiing, is the pastime of sliding down snow-covered slopes on skis with fixed-heel bindings, unlike other types of skiing ( cross-country, Telemark, or ski jumping), which use skis with free-heel bindings. Whether for recreation or for sport, it is typically practiced at ski resorts, which provide such services as ski lifts, artificial snow making, snow grooming, restaurants, and ski patrol. "Off-piste" skiers—those skiing outside ski area boundaries—may employ snowmobiles, helicopters or snowcats to deliver them to the top of a slope. Back-country skiers may use specialized equipment with a free-heel mode, including 'sticky' skins on the bottoms of the skis to stop them sliding backwards during an ascent, then locking the heel and removing the skins for their descent. Alpine skiing has been an event at the Winter Olympic Games since 1936. A competition corresponding to modern slalom was introduced in Oslo in 1886. Participants and venues ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freeskier
Freeskiing, or new school skiing, is a specific type of alpine skiing, which involves tricks, jumps, and terrain park features, such as rails, boxes, jibs, or other obstacles. This form of skiing resulted from the growth of snowboarding combined with the progression of freestyle skiing. "Newschoolers", or those who specifically ski in this style, as opposed to traditional freestylers, freeriders, big mountain skiers, and racers, are often found in terrain parks, which are designed specifically for tricks. Controversially, freestyle skiing is viewed as its own sport, but some view it as a subset of freeskiing. Some participants view it as a separate sport and do not refer to it as freestyle. The sport does not require participants to compete, but there are competitive events available at every level of the sport. Currently there are two Olympic freeskiing events, half-pipe skiing and slopestyle. These events make up two of the four Olympic freestyle skiing events. The sport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jon Olsson
Jon Anders Olsson Delér (born 17 August 1982) is a professional freeskier and alpine ski racer from Sweden. Born in Mora, Olsson Delér started his career as a ski racer but at age 16 he switched his race skis for twin tips and quit ski racing. Eight years later, after a 50 000 SEK (US$5826.22) bet with fellow skier Jens Byggmark, Olsson Delér started ski racing again with the goal of the bets being to make it to the Olympics in 2014. He now competes in both freestyle and ski racing. Olsson Delér is known for his invention of several new double flips, including a D-spin 720 into a flatspin 540 (DJ flip), a switch double rodeo 1080 (hexo flip), a double flatspin 900 (kangaroo flip), and a switch cork 720 to flatspin 540 (the tornado). Since 2005 Olsson Delér has hosted the big air event Jon Olsson Invitational, also known as JOI. In 2007 the event was voted best big air event by freeskier magazine. From 2007 to 2010 he also hosted Jon Olsson Super Sessions (JOSS), a freeskiing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Evo (magazine)
''Evo'' is a British automobile magazine dedicated to performance cars, from hot hatches to supercars. History In 1995, then Harpenden-based farmer and property developer Harry Metcalfe had become involved in car tests for magazine publishers, after he purchased the first Maserati Ghibli Cup in 1994, through which he had made contacts into the motoring media. After EMAP decided to integrate specialist magazine ''Performance Car'' into ''Car'' magazine in 1998, Metcalfe and motoring journalist John Barker began forming plans to fill what they saw as a gap in the specialist motoring magazine market.Collecting Cars podcast - Chris Harris Talks Cars with Harry Metcalfe - 2 October 2019 Metcalfe formed the business and would run the business side, with Barker joined by writers including Richard Meaden, David Vivian and Peter Tomalin all holding a minority share. Metcalfe created a business plan based on potentially selling his family holiday home in Wales, and although turned down ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon Fiber Reinforced Polymer
Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon composite, or just carbon, are extremely strong and light fiber-reinforced plastics that contain carbon fibers. CFRPs can be expensive to produce, but are commonly used wherever high strength-to-weight ratio and stiffness (rigidity) are required, such as aerospace, superstructures of ships, automotive, civil engineering, sports equipment, and an increasing number of consumer and technical applications. The binding polymer is often a thermoset resin such as epoxy, but other thermoset or thermoplastic polymers, such as polyester, vinyl ester, or nylon, are sometimes used. The properties of the final CFRP product can be affected by the type of additives introduced to the binding matrix (resin). The most common additive is silica, but other addit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inline-four Engine
A straight-four engine (also called an inline-four) is a four-cylinder piston engine where cylinders are arranged in a line along a common crankshaft. The vast majority of automotive four-cylinder engines use a straight-four layout (with the exceptions of the flat-four engines produced by Subaru and Porsche) and the layout is also very common in motorcycles and other machinery. Therefore the term "four-cylinder engine" is usually synonymous with straight-four engines. When a straight-four engine is installed at an inclined angle (instead of with the cylinders oriented vertically), it is sometimes called a slant-four. Between 2005 and 2008, the proportion of new vehicles sold in the United States with four-cylinder engines rose from 30% to 47%. By the 2020 model year, the share for light-duty vehicles had risen to 59%. Design A four-stroke straight-four engine always has a cylinder on its power stroke, unlike engines with fewer cylinders where there is no power stroke occu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turbocharger
In an internal combustion engine, a turbocharger (often called a turbo) is a forced induction device that is powered by the flow of exhaust gases. It uses this energy to compress the intake gas, forcing more air into the engine in order to produce more power for a given displacement. The current categorisation is that a turbocharger is powered by the kinetic energy of the exhaust gasses, whereas a supercharger is mechanically powered (usually by a belt from the engine's crankshaft). However, up until the mid-20th century, a turbocharger was called a "turbosupercharger" and was considered a type of supercharger. History Prior to the invention of the turbocharger, |
Renault F4R
F Renault engine (F for ''fonte'', French for cast iron) is an automotive internal combustion engine, four-stroke, inline-four engine bored directly into the iron block, water cooled, with overhead camshaft driven by a timing belt, and with an aluminum cylinder head, developed and produced by Renault in the early '80s, making its appearance on the Renault 9 and 11. This engine is available in petrol and diesel versions, with 8 or 16 valves. History In December 1982, the Renault Board proposed a new diesel engine with for the Renault 9. Known as "F8M", the new engine was designed by engineer George Douin and his team and broke with tradition by featuring no removable cylinder liners, thanks to advances in metals technology that significantly slow the wear of rubbing mechanical parts. The new 4- cylinder unit adopted an overhead camshaft driven by a toothed belt that also controls the diesel injection pump. A second belt rotates the alternator and water pump, while a vacuum pum ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Renault Sport
Renault Sport () or Renaultsport, was the motorsport, performance and special vehicles division for Renault-badged cars. Renault Sport was officially established in 1976 as a merger between the Alpine and Gordini competition departments. It was reorganised in 2002 and 2016. In December 2021, all Renault Sport operations were merged into an Alpine-led business unit. History Renault Sport was created at the end of 1976, when Renault closed down the Alpine competition department (at that time, its main motorsport division), located at Dieppe, and moved all the racing activities to the Gordini factory at Viry-Châtillon, just outside Paris. The Dieppe-based Alpine department specialised in the construction of race car chassis while the Viry-Châtillon-based Gordini focussed on engines. However, several conflicts emerged between them, and Renault took the decision to unify both departments into a single location in order to achieve a greater integration and harmony. The company c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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