A go-kart, also written as go-cart (often referred to as simply a kart), is a type of open-wheel car or quadracycle. Go-karts come in all shapes and forms, from motorless models to high-powered racing machines. Some, such as Superkarts, are able to beat racing cars or motorcycles on long circuits.
The exact origin of the term is unclear. One of the first appearances of the term is an 1885 painting by the Scottish artist Hugh Cameron RSA: "The Go-Cart".It is also unclear why the "C" was later changed to a "K".
Gravity racers, in North America usually referred to as Soap Box Derby carts, are the simplest type of go-karts. They are propelled by gravity. Go-karts without motors may also be propelled by pedal-power.
Many recreational karts can be powered by inline-4 engines or electric motors, while racing karts use a 2.4 L normally-aspirated or, more rarely, higher powered four-stroke engines. Most of them are single seater but some recreational models can accommodate a passenger.
In some countries, go-karts can be licensed for use on public roads often referred to as street tracks. Typically there are some restrictions; in the European Union, a go-kart modified for use on the road must be outfitted with headlights (high/low beam), tail lights, a horn, indicators, and an engine not exceeding 20 hp (15 kW).
Besides traditional kart racing, many commercial enterprises offer karts for rent, often called "recreational" or "concession" karts. The tracks can be indoor or outdoor. Karts are rented by sessions (usually from 10 to 30 minutes) or on a day basis.They use sturdy chassis complete with dedicated bodywork, providing driver safety. Most of these enterprises use an "Arrive and Drive" format which provides customers with all the safety gear (helmets, gloves and driver outfits) necessary, and allow them to show up anytime to race at a reasonable price, without the problem of having to own their own equipment and gear.
Outdoor tracks can offer low-speed karts strictly for amusement (dedicated chassis equipped with low powered four-stroke engines or electric motors), or faster, more powerful karts, similar to a racing kart, powered by four-stroke engines up to 15 hp (11 kW) and, more rarely, by 2-stroke engines, but designed to be more robust for rental use. Typically, outdoor tracks are also used for traditional kart races.
Indoor kart tracks can be found in many large cities in different parts of the world. These tracks are often located in refurbished factories or warehouses, and are typically shorter than traditional outdoor tracks. Indoor karts are usually powered by a four-stroke gasoline engine producing anywhere from 5 to 13 hp (4 to 10 kW), or sometimes by an electric motor. Many tracks offer competitive races and leagues. At the top level, an Indoor Karting World Championship (IKWC) exists.
Power is transmitted from the engine to the rear axle by way of a chain (some rentals use a belt).
Go-karts used in amusement parks can be fitted with additional electronic controls, such as remote speed limiters, to help promote a safer operating environment. In the event of an accident or an out-of-control racer, the track attendant can remotely slow or stop all vehicles on the track via radio control. This remote speed control can also be used to limit young riders to a slow operating speed, while a race consisting only of adults is permitted a higher speed. These controls can be applied to both electric and combustion-engine karts.
An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method of propelling small watercraft. As well as providing propulsion, outboards provide steering control, as they are designed to pivot over their mountings and thus control the direction of thrust. The skeg also acts as a rudder when the engine is not running. Unlike inboard motors, outboard motors can be easily removed for storage or repairs.
Kart racing or karting is a variant of motorsport road racing with open-wheel, four-wheeled vehicles known as go-karts or shifter karts. They are usually raced on scaled-down circuits, although some professional kart races are also held on full-size motorsport circuits. Karting is commonly perceived as the stepping stone to the higher ranks of motorsports, with former Formula One champions such as Sebastian Vettel, Nico Rosberg, Ayrton Senna, Lewis Hamilton, Michael Schumacher and Fernando Alonso having begun their careers in karting.
A model aircraft is a small unmanned aircraft and may be a replica of an existing or imaginary aircraft. Model aircraft are divided into two basic groups: flying and non-flying. Non-flying models are also termed static, display, or shelf models.
Radio-controlled cars are miniature model cars or trucks that can be controlled from a distance using a specialized transmitter or remote. The term "RC" has been used to mean both "remote controlled" and "radio controlled", where "remote controlled" includes vehicles that are controlled by radio, infrared or a physical wire connection. Common use of "RC" today usually refers only to vehicles controlled by radio, and this article focuses on radio-controlled vehicles only.
A hybrid vehicle is one that uses two or more distinct types of power, such as submarines that use diesel when surfaced and batteries when submerged. Other means to store energy include pressurized fluid in hydraulic hybrids.
A snowmobile, also known as a motor sled, motor sledge, skimobile, snow scooter, Ski-Doo, or snowmachine, is a motorized vehicle designed for winter travel and recreation on snow. It is designed to be operated on snow and ice and does not require a road or trail, but most are driven on open terrain or trails. Snowmobiling is a sport that many people have taken on as a serious hobby.
Sprint cars are high-powered race cars designed primarily for the purpose of running on short oval or circular dirt or paved tracks. Sprint car racing is popular primarily in the United States and Canada, as well as in Australia, New Zealand, and South Africa.
A brushless DC electric motor, also known as an electronically commutated motor or synchronous DC motor, is a synchronous motor using a direct current (DC) electric power supply. It uses an electronic closed loop controller to switch DC currents to the motor windings producing magnetic fields which effectively rotate in space and which the permanent magnet rotor follows. The controller adjusts the phase and amplitude of the DC current pulses to control the speed and torque of the motor. This control system is an alternative to the mechanical commutator (brushes) used in many conventional electric motors.
Superkart is a form of motorsport road racing in which the class is a racing vehicle sized like a go-kart but with several characteristics more strongly associated with open-wheel racing cars.
An electronic speed control (ESC) is an electronic circuit that controls and regulates the speed of an electric motor. It may also provide reversing of the motor and dynamic braking. Miniature electronic speed controls are used in electrically powered radio controlled models. Full-size electric vehicles also have systems to control the speed of their drive motors.
A motorized bicycle is a bicycle with an attached motor or engine and transmission used either to power the vehicle unassisted, or to assist with pedalling. Since it always retains both pedals and a discrete connected drive for rider-powered propulsion, the motorized bicycle is in technical terms a true bicycle, albeit a power-assisted one. However, for purposes of governmental licensing and registration requirements, the type may be legally defined as a motor vehicle, motorbike, moped, or a separate class of hybrid vehicle.
A micro kart is a small, one passenger mini go-kart. These karts typically have two-stroke engines, ranging in size from 22.5 cc to 85 cc, and putting out anywhere from 1.2 hp to over 20 hp, or an electric motor with rechargeable lithium ion batteries.
Hybrid vehicle drive trains transmit power to the driving wheels for hybrid vehicles. A hybrid vehicle has multiple forms of motive power.
The eRuf Model A was a late-2000s all-electric concept sports car built by German automobile manufacturer Ruf Automobile. The car was powered by a UQM Technologies propulsion system. The car has a top speed of 225 km/h (140 mph) and was capable of producing 150 kW of power and 479 lb⋅ft (649 N⋅m) of torque. Estimated range per charge was 250–320 km (155–199 mi), depending on performance level, using iron-phosphate, lithium-ion batteries built by Axeon plc of Great Britain. During coasting the engine works as a generator producing electricity to charge the batteries.
The Porsche 918 Spyder is a limited-production mid-engine plug-in hybrid sports car manufactured by German automobile manufacturer Porsche. The 918 Spyder is powered by a naturally aspirated 4.6 L (4,593 cc) V8 engine, developing 447 kW at 8,700 rpm, with two electric motors delivering an additional 210 kW for a combined output of 652 kW and 1,280 N⋅m (944 lbf⋅ft) of torque. The 918 Spyder's 6.8 kWh lithium-ion battery pack delivers an all-electric range of 19 km (12 mi) under the US Environmental Protection Agency's five-cycle tests.
An electric go-kart is a type of go-kart powered by electric motors and batteries, as opposed to traditional petrol engine. Electric go-karts are mostly intended for recreational usage, though high-performance models for a more serious kart racing are also offered.
The Yuneec EViva is a Chinese low-wing, two-seat motor glider that was designed by Martin Wezel is now under development by Yuneec International of Kunshan, Jiangsu.
The Energica Ego is an electrically propelled sport road motorcycle designed and marketed by Energica Motor Company. It is claimed by Energica to be the world's first street-legal electric Italian sport motorcycle. The prototype was finished in 2013 and the vehicle came into the market in 2015. The prototype made use of new technologies such as CNC and 3D-printing, including the dashboard and headlights which were 3D-printed.
The Puritalia Berlinetta is a hybrid grand tourer manufactured by Italian automobile manufacturer Puritalia Automobili. Introduced at the 2019 Geneva Motor Show, it is the first car produced by the company. The car is intended to be a representation of the classic grand touring cars produced in the 1960s.
The Ferrari SF90 Stradale is a mid-engine PHEV sports car produced by the Italian automobile manufacturer Ferrari. The car shares its name with the SF90 Formula One car with SF90 standing for the 90th anniversary of the Scuderia Ferrari racing team and "Stradale" meaning "made for the road".
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