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Tether cars (also commonly known as spindizzies) [1] are model racing cars powered by miniature internal combustion engines and tethered to a central post. Unlike radio control cars, the driver has no remote control over the model's speed or steering.
Tether cars are often small (less than 1 meter in length), powered by a non-radio controlled model aeroplane engine (two stroke, glow plug, piston liner, etc.), and run on fuel supplied by a fuel tank within the car. Since 2015, electric motor driven cars, powered by batteries, have also emerged. [2]
Tether cars were developed beginning in the 1920s–1930s and still are built, raced and collected today. First made by hobby craftsmen, tether cars were later produced in small numbers by commercial manufacturers such as Dooling Brothers (California), Dick McCoy (Duro-Matic Products), Garold Frymire (Fryco Engineering) BB Korn, and many others. Original examples of the early cars, made from 1930s to the 1960s, are avidly collected today and command prices in the thousands of dollars.
There are tracks in Australia (Brisbane and Sydney), New Zealand, Germany, Switzerland, Estonia, Ukraine, Russia, the United States, and other countries. World Championship races are held every 3 years, the 2013 World Championships was held in Basel, Switzerland.
| Class | Date | Driver | Speed | |
|---|---|---|---|---|
| km/h | mph | |||
| WMCR I (1.5 cm³) | December 9, 2006 |  Jan-Erik Falk | 268.697 | 166.961 |
| WMCR II (2.5 cm³) | August 20, 2016 |  Torbjorn Johannessen | 285.711 | 177.533 |
| WMCR III (3.5 cm³) | March 4, 2017 |  Andrii Yakymiv | 300.953 | 187.004 |
| WMCR IV (5 cm³) | April 5, 2014 |  Tonu Sepp | 317.124 | 197.057 |
| WMCR V (10 cm³) | October 18, 2019 | Ando Rohtmets | 347.490 [3] [4] | 215.920 |
Auto racing is a motorsport involving the racing of automobiles for competition.
Stock car racing is a form of automobile racing run on oval tracks and road courses measuring approximately 0.25 to 2.66 miles. It originally used production-model cars, hence the name "stock car", but is now run using cars specifically built for racing. It originated in the southern United States; its largest governing body is NASCAR. Its NASCAR Cup Series is the premier top-level series of professional stock car racing. Australia, Canada, New Zealand, Mexico, Brazil and the United Kingdom also have forms of stock car racing. Top-level races typically range between 200 and 600 miles in length.
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. Sports car racing is one of the main types of circuit auto racing, alongside open-wheel racing, touring car racing and stock car racing. Sports car races are often, though not always, endurance races that are run over particularly long distances or large amounts of time, resulting in a larger emphasis on the reliability and efficiency of the car and its drivers as opposed to outright car performance or driver skills. The FIA World Endurance Championship is an example of one of the best known sports car racing series.
A model aircraft is a small unmanned aircraft. Many are replicas of real 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, vans, buses, trucks or buggies 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". "Remote controlled" includes vehicles that are controlled by radio waves, infrared waves or a physical wire connection.
A radio-controlled model is a model that is steerable with the use of radio control (RC). All types of model vehicles have had RC systems installed in them, including ground vehicles, boats, planes, helicopters and even submarines and scale railway locomotives.
A grand tourer (GT) is a type of car that is designed for high speed and long-distance driving, due to a combination of performance and luxury attributes. The most common format is a front-engine, rear-wheel-drive two-door coupé with either a two-seat or a 2+2 arrangement. Grand tourers are most often the coupé derivative of luxury saloons or sedans. Many iconic car models, such as the Ferrari 250 GT, Jaguar E-Type, and Aston Martin DB5, are considered classic examples of Gran Turismo cars.
Sprint cars are high-powered open-wheel race cars, designed primarily for the purpose of running on short oval or circular dirt or paved tracks. Historically known simply as "big cars," distinguishing them from "midget cars," sprint car racing is popular primarily in the United States and Canada, as well as in Australia, New Zealand, and South Africa.
A slot car or slotcar is a powered miniature automobile or other vehicle that is guided by a groove or slot in the track on which it runs. A pin or blade extends from the bottom of the car into the slot. Though some slot cars are used to model highway traffic on scenic layouts, the great majority are used in the competitive hobby of slot car racing or slot racing.
A go-kart, also written as go-cart, is a type of sports car, close wheeled car, open-wheel car or quadracycle. Go-karts come in all shapes and forms, from non-motorised models to high-performance racing karts. Karting is a type of racing in which a compact four-wheel unit called a go-kart is used. In the beginning, Art Ingels invented the first go-kart in Los Angeles in 1956.
Dirt track racing is a form of motorsport held on clay or dirt surfaced oval race tracks often used for thoroughbred horse racing. Dirt track racing started in the United States before World War I and became widespread during the 1920s and 1930s using both automobiles and motorcycles. Two different types of race cars dominate — open wheel racers in the Northeast and West and stock cars in the Midwest and South. While open wheel race cars are purpose-built racing vehicles, stock cars can be either purpose-built race cars or street vehicles that have been modified to varying degrees. There are hundreds of local and regional racetracks throughout the nation. The sport is also popular in Australia, New Zealand, Canada, South Africa and the United Kingdom.
The 24 Hours of Le Mans is an endurance-focused sports car race held annually near the town of Le Mans, France. It is widely considered to be one of the world's most prestigious races, and is one of the races—along with the Monaco Grand Prix and Indianapolis 500—that form the Triple Crown of Motorsport and is also one of the races alongside the 24 Hours of Daytona, and 12 Hours of Sebring that make up the informal Triple crown of endurance racing. Run since 1923, it is the oldest active endurance racing event in the world.
Live steam is steam under pressure, obtained by heating water in a boiler. The steam may be used to operate stationary or moving equipment.
A nitro engine generally refers to an engine powered with a fuel that contains some portion of nitromethane mixed with methanol. Nitromethane is a highly combustible substance that is generally only used in very specifically designed engines found in Top Fuel drag racing and miniature internal combustion engines in radio control, control line and free flight model aircraft.
A radio-controlled boat is a boat or ship model controlled remotely with radio control equipment.
Cox Models, a former division of Estes Industries of Penrose, Colorado, was a multimillion-dollar hobby company, is one of the hobby industry's oldest companies and is noted for its production of miniature model internal-combustion engines.
The FIA Formula 3 European Championship was a European Formula Three (F3) auto racing competition, organised by the Fédération Internationale de l'Automobile (FIA). After one season of the FIA Formula 3 International Trophy, the FIA revived the FIA Formula 3 European Championship. The ten-event season included seven Formula 3 Euro Series rounds, two British Formula Three rounds and DTM-supporting round at Brands Hatch. From 2013, the series started running its own rounds, based upon the defunct Formula 3 Euro Series.
The following is a glossary of terminology used in motorsport, along with explanations of their meanings.
The Auto Union Grand Prix racing cars types A to D were developed and built by a specialist racing department of Auto Union's Horch works in Zwickau, Germany, between 1933 and 1939, after the company bought a design by Dr. Ferdinand Porsche in 1933. The Auto Union type B streamlined body was designed by Paul Jaray.
A 1:10 radio-controlled off-road buggy is a 1:10 scale radio-controlled dune buggy designed for off-road racing. These cars are based on their full-scale equivalents that are commonly found in desert racing. The buggies are split into two race categories, two (2WD) and four-wheel drive (4WD). These can easily be distinguished visually by their wheel size at the front. Cars are typically electric powered, but nitro versions do exist but are less common because racing classes exist for electric cars. The class is inexpensive and similar to a number of other classes, and this makes them popular with newcomers. The cars are also known as 1/10 off-road.