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Electric Dragbike
An electric dragbike is an electric motorcycle used for drag racing. Electric dragsters have come of age with new developments in battery and motor technology. Electric motors powered by lithium cells can deliver power-to-weight ratios similar to high performance gasoline engines. Drag races last around ten seconds so battery range is not an issue. A number of electric dragbikes and dragsters (cars) are competing with Top Fuel classes. Electric drag racing records are listed at NEDRA.Record Holders ''Nedra''. Retrieved: 17 June 2010. Batteries Electric dragbike tend to use or[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Motorcycles And Scooters
Electric motorcycles and scooters are plug-in electric vehicles with two or three wheels. Power is supplied by a rechargeable battery which drives one or more electric motors. Electric scooters are distinguished from motorcycles by having a step-through frame, instead of being straddled. Electric bicycles are similar vehicles, distinguished by retaining the ability to be propelled by the rider pedalling in addition to battery propulsion. Electric scooters with the rider standing are known as e-scooters. History 1895 to 1950 The early history of electric motorcycles is somewhat unclear. On 19 September 1895, a patent application for an "electrical bicycle" was filed by Ogden Bolton Jr. of Canton Ohio. On 8 November of the same year, another patent application for an "electric bicycle" was filed by Hosea W. Libbey of Boston. At the Stanley Cycle Show in 1896 in London, England, bicycle manufacturer Humber exhibited an electric tandem bicycle. Powered by a bank of storage b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drag Racing
Drag racing is a type of motor racing in which automobiles or motorcycles compete, usually two at a time, to be first to cross a set finish line. The race follows a short, straight course from a standing start over a measured distance, most commonly , with a shorter, distance becoming increasingly popular, as it has become the standard for Top Fuel dragsters and Funny Cars, where some major bracket races and other sanctioning bodies have adopted it as the standard. The is also popular in some circles. Electronic timing and speed sensing systems have been used to record race results since the 1960s. The history of automobiles and motorcycles being used for drag racing is nearly as long as the history of motorized vehicles themselves, and has taken the form of both illegal street racing and as a regulated motorsport. History Drag racing started in the 1940s. World War II veterans were prominently involved, and some early drag races were done at decommissioned aircraft b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Battery (electricity)
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that will flow through an external electric circuit to the positive terminal. When a battery is connected to an external electric load, a redox reaction converts high-energy reactants to lower-energy products, and the free-energy difference is delivered to the external circuit as electrical energy. Historically the term "battery" specifically referred to a device composed of multiple cells; however, the usage has evolved to include devices composed of a single cell. Primary (single-use or "disposable") batteries are used once and discarded, as the electrode materials are irreversibly changed during discharge; a common example is the alkaline battery use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gasoline Engine
A petrol engine (gasoline engine in American English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as ''E10'' and ''E85''). Most petrol engines use spark ignition, unlike diesel engines which typically use compression ignition. Another key difference to diesel engines is that petrol engines typically have a lower compression ratio. Design Thermodynamic cycle Most petrol engines use either the four-stroke Otto cycle or the two-stroke cycle. Petrol engines have also been produced using the Miller cycle and Atkinson cycle. Layout Most petrol-powered piston engines are straight engines or V engines. However, flat engines, W engines and other layouts are sometimes used. Wankel engines are classified by the number of rotors used. Compression ratio Cooling Petrol engines are either air-cooled or water-cooled. Ignition Petr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Dragster
An electric dragster is a drag racing vehicle which contains an electric propulsion system which is powered by batteries, fuel cells, supercapacitors (ultracapacitors), and sometimes they include a combustion engine to recharge their ESS (Energy Storage Systems). Electric vehicles are becoming increasingly common because electric propulsion systems have recently been gaining recognition as a replacement for gasoline and diesel powered propulsion systems. They are being considered as replacements for gasoline and diesel powered vehicles for many reasons, including the high efficiency of electric motors, their reliability, as well as their torque curves which can be achieved without a costly transmission. The torque characteristics of electric motors are attractive because they produce large amounts of torque, and they start producing most of it at zero RPM. One of the most significant problems which affect electric vehicle performance is the power density of their energy storage sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Top Fuel
Top Fuel is a type of drag racing whose dragsters are the quickest accelerating racing cars in the world and the fastest sanctioned category of drag racing, with the fastest competitors reaching speeds of and finishing the runs in 3.62 seconds. A top fuel dragster accelerates from a standstill to in as little as 0.8 seconds (less than one third the time required by a production Porsche 911 Turbo to reach ) and can exceed in just . This subjects the driver to an average acceleration of about over the duration of the race and with a peak of over . Because of the speeds, this class exclusively races to only a distance, and not the traditional one-fourth of a statute mile, or . The rule was changed in 2008 by the National Hot Rod Association following the fatal crash of Funny Car driver Scott Kalitta during a qualifying session at Old Bridge Township Raceway Park in Englishtown, New Jersey. The shortening of the distance was used by the FIA at some tracks, and as of 2012 is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NEDRA
The National Electric Drag Racing Association (NEDRA), a Special Chapter of the Electric Auto Association, and exists to increase public awareness of electric vehicle (EV) performance and to encourage through competition, advances in electric vehicle technology. NEDRA achieves this by organizing and sanctioning safe, silent and exciting electric vehicle drag racing events. NEDRA is a coalition of drag racing fans, electric drag racing vehicle owners and drivers, individuals interested in promoting the sport of EV drag racing, EV parts suppliers, EV manufacturers and other environmentally concerned companies and individuals. Working together as a group, we put excitement into electric vehicle drag racing. Examples Examples of NEDRA vehicles are: *The Maniac Mazda, is a Mazda RX-7 which can achieve 1/4 mile times of under 12 seconds. *Another example is White Zombie, a converted Datsun 1200 sedan which can win against a Dodge Viper and has a best time of 10.25 seconds f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithium-ion Battery
A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. It is the predominant battery type used in portable consumer electronics and electric vehicles. It also sees significant use for grid-scale energy storage and military and aerospace applications. Compared to other rechargeable battery technologies, Li-ion batteries have high energy densities, low self-discharge, and no memory effect (although a small memory effect reported in LFP cells has been traced to poorly made cells). Chemistry, performance, cost and safety characteristics vary across types of lithium-ion batteries. Most commercial Li-ion cells use intercalation compounds as the active materials. The anode or negative electrode is usually graphite, although silicon-carbon is also being increasingly used. Cells can be manufactured to prioritize either energy or power density. Handheld electronics mostly use lithium polymer batter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electric Drag Racing
Electric drag racing rules are very different from traditional drag racing. The common safety rules apply but additional rules apply depending on voltage, battery type, motor number and configuration. The National Electric Drag Racing Association (NEDRA) oversees the majority of electric drag racing events in North America. Electric motors produce 100% torque at zero RPM and this makes them quicker off the line compared to a piston-engined vehicle of the same power. Since battery technology has improved a great deal during the 1980s to present, the performance gap between piston-engined & electric-motor vehicles has narrowed. The weight of the battery packs can impact overall performance raising 1/4 mile times. Electric Drag Racing World Records Motorcycles, 1/8 mile In the drag motorcycle class, 48 volt NEDRA division,NEDRA Hand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Motorcycle Drag Racing
Motorcycle drag racing (also known as "sprints") involves two participants lining up at a dragstrip with a signaled starting line. Upon the starting signal, the riders accelerate down a or long, two lane, straight paved track where their elapsed time and terminal speed are recorded. The rider to reach the finish line first is the winner. The best-known form of motorcycle drag racing is the Pro Stock Bike category, although several other categories exist, including Top Fuel and Pro Street. Motorcycles in the Top Fuel category are fueled by nitro methane and can make nearly 1,500 horsepower. From a standing start they can cover the first 60 feet in less than a second and can reach 200 mph in less than eighth-mile or 660 feet. The current world record is held by Top Fuel Veteran Larry "Spiderman" McBride who covered the quarter-mile in 5.50 seconds at 264 MPH on 21 November 2019 recorded at South Georgia Motorsports Park. Elmer Trett is considered by many to be the greatest mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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