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68-519: The plant was established on 29 May 1946. The first manufactured tractor was caterpillar tractor KD-25  [ ru ] "Kirovets". The production of MTZ-model tractors, the MTZ-1 and MTZ-2 models, started on October 14, 1953. (Prototypes were manufactured in 1949.) As of 2005, it had nearly 20,000 workers. The plant produces over 62 models of vehicles . Its main civil production has been four-wheeled tractors of model "MTZ", known as Belarus . By 1995

136-460: A milk wagon . Tank wagons carried liquid cargoes. Water wagons delivered to areas without piped water and for military camp use. In the early 1900s, the American street flusher used a gas-powered pump to clean city streets of litter or mud, and to wet down dust in dry seasons. Liquid manure wagons were low tank vehicles for spreading manure on fields in the 1860s-1900s. Oil wagons operated from

204-582: A south-pointing chariot , a vehicle with an early form of guidance system. The stagecoach , a four-wheeled vehicle drawn by horses, originated in 13th century England. Railways began reappearing in Europe after the Dark Ages . The earliest known record of a railway in Europe from this period is a stained-glass window in the Minster of Freiburg im Breisgau dating from around 1350. In 1515, Cardinal Matthäus Lang wrote

272-504: A wagonway , a predecessor of the railway, found so far was the 6 to 8.5 km (4 to 5 mi) long Diolkos wagonway, which transported boats across the Isthmus of Corinth in Greece since around 600 BC. Wheeled vehicles pulled by men and animals ran in grooves in limestone , which provided the track element, preventing the wagons from leaving the intended route. In 200 CE, Ma Jun built

340-414: A " teamster ", a " bullocky " (Australia), a " muleteer ", or simply a "driver". Wagons have served numerous purposes, with numerous corresponding designs. As with motorized vehicles, some are designed to serve as many functions as possible, while others are highly specialized. The exact name and terminology used are often dependent on the design or shape of the wagon. If low and sideless it may be called

408-433: A boost from high altitude winds. Compressed gas is currently an experimental method of storing energy. In this case, compressed gas is simply stored in a tank and released when necessary. Like elastics, they have hysteresis losses when gas heats up during compression. Gravitational potential energy is a form of energy used in gliders, skis, bobsleds and numerous other vehicles that go down hill. Regenerative braking

476-577: A description of the Reisszug , a funicular railway at the Hohensalzburg Fortress in Austria. The line originally used wooden rails and a hemp haulage rope and was operated by human or animal power, through a treadwheel . 1769: Nicolas-Joseph Cugnot is often credited with building the first self-propelled mechanical vehicle or automobile in 1769. In Russia, in the 1780s, Ivan Kulibin developed

544-416: A dray, trolley or float . When traveling over long distances and periods, wagons may be covered with cloth to protect their contents from the elements; these are " covered wagons ". If it has high sides, with or without a permanent top, it may be called a " van ". A wagon might be unsprung if ordinarily used over rough ground or cobbles. A front axle assembly , in its simplest form, is an assembly of

612-490: A driver's seat or bench, leaving the driver to walk alongside the wagon or ride atop of one of the horses. Many freight wagons had a "lazyboard," a plank that could be pulled out for sitting upon then pushed back when not needed. In America, lazyboards were located on the left side and close to the brake because wagons were steered from the left side. In the United States and Canada, the large, heavily built Conestoga wagon

680-846: A fact that the New York Times denied in error . Rocket engines can be particularly simple, sometimes consisting of nothing more than a catalyst, as in the case of a hydrogen peroxide rocket. This makes them an attractive option for vehicles such as jet packs. Despite their simplicity, rocket engines are often dangerous and susceptible to explosions. The fuel they run off may be flammable, poisonous, corrosive or cryogenic. They also suffer from poor efficiency. For these reasons, rocket engines are only used when absolutely necessary. Electric motors are used in electric vehicles such as electric bicycles , electric scooters, small boats, subways, trains , trolleybuses , trams and experimental aircraft . Electric motors can be very efficient: over 90% efficiency

748-665: A flight with an actual ornithopter on July 31, 2010. Paddle wheels are used on some older watercraft and their reconstructions. These ships were known as paddle steamers . Because paddle wheels simply push against the water, their design and construction is very simple. The oldest such ship in scheduled service is the Skibladner . Many pedalo boats also use paddle wheels for propulsion. Screw-propelled vehicles are propelled by auger -like cylinders fitted with helical flanges. Because they can produce thrust on both land and water, they are commonly used on all-terrain vehicles. The ZiL-2906

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816-423: A gas station. Fuel cells are similar to batteries in that they convert from chemical to electrical energy, but have their own advantages and disadvantages. Electrified rails and overhead cables are a common source of electrical energy on subways, railways, trams, and trolleybuses. Solar energy is a more modern development, and several solar vehicles have been successfully built and tested, including Helios ,

884-463: A go around is needed. Parachutes are used to slow down vehicles travelling very fast. Parachutes have been used in land, air and space vehicles such as the ThrustSSC , Eurofighter Typhoon and Apollo Command Module . Some older Soviet passenger jets had braking parachutes for emergency landings. Boats use similar devices called sea anchors to maintain stability in rough seas. To further increase

952-509: A hot exhaust. Trains using turbines are called gas turbine-electric locomotives . Examples of surface vehicles using turbines are M1 Abrams , MTT Turbine SUPERBIKE and the Millennium . Pulse jet engines are similar in many ways to turbojets but have almost no moving parts. For this reason, they were very appealing to vehicle designers in the past; however, their noise, heat, and inefficiency have led to their abandonment. A historical example of

1020-537: A human-pedalled, three-wheeled carriage with modern features such as a flywheel , brake , gear box and bearings ; however, it was not developed further. In 1783, the Montgolfier brothers developed the first balloon vehicle. In 1801, Richard Trevithick built and demonstrated his Puffing Devil road locomotive, which many believe was the first demonstration of a steam-powered road vehicle, though it could not maintain sufficient steam pressure for long periods and

1088-536: A short beam with a pivot plate, two wagon wheels and spindles as well as a drawbar attached to this. A pin attaches the device to a chariot , a wagon or a coach , making the turning radius smaller. Farm wagons are built for general multi-purpose usage in an agricultural or rural setting. These include gathering hay , crops and wood , and delivering them to the farmstead or market . Wagons can also be pulled with tractors for easy transportation of those materials. A common form found throughout Europe

1156-584: A solar-powered aircraft. Nuclear power is a more exclusive form of energy storage, currently limited to large ships and submarines, mostly military. Nuclear energy can be released by a nuclear reactor , nuclear battery , or repeatedly detonating nuclear bombs . There have been two experiments with nuclear-powered aircraft, the Tupolev Tu-119 and the Convair X-6 . Mechanical strain is another method of storing energy, whereby an elastic band or metal spring

1224-407: A special arrangement in which all four main wheels can be angled. Skids can also be used to steer by angling them, as in the case of a snowmobile . Ships, boats, submarines, dirigibles and aeroplanes usually have a rudder for steering. On an airplane, ailerons are used to bank the airplane for directional control, sometimes assisted by the rudder. With no power applied, most vehicles come to

1292-411: A stop due to friction . But it is often required to stop a vehicle faster than by friction alone, so almost all vehicles are equipped with a braking system. Wheeled vehicles are typically equipped with friction brakes, which use the friction between brake pads (stators) and brake rotors to slow the vehicle. Many airplanes have high-performance versions of the same system in their landing gear for use on

1360-406: A two-wheeled "haywain" would be a hay cart, as opposed to a carriage. Wain is also an archaic term for a chariot. Wain can also be a verb, to carry or deliver, and has other meanings. Contemporary or modern animal-drawn wagons may be of metal instead of wood and have regular wheels with rubber tires instead of traditional wagon wheels. A person who drives wagons is called a "wagoner",

1428-489: A vacuum, which limits their use to spaceborne vehicles. Ion thrusters run primarily off electricity, but they also need a propellant such as caesium , or, more recently xenon . Ion thrusters can achieve extremely high speeds and use little propellant; however, they are power-hungry. The mechanical energy that motors and engines produce must be converted to work by wheels, propellers, nozzles, or similar means. Aside from converting mechanical energy into motion, wheels allow

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1496-422: A variety of conditions. One of the difficulties met when using gas motors is the cooling effect of expanding gas. These engines are limited by how quickly they absorb heat from their surroundings. The cooling effect can, however, double as air conditioning. Compressed gas motors also lose effectiveness with falling gas pressure. Ion thrusters are used on some satellites and spacecraft. They are only effective in

1564-528: A vehicle to roll along a surface and, with the exception of railed vehicles, to be steered. Wheels are ancient technology, with specimens being discovered from over 5000 years ago. Wheels are used in a plethora of vehicles, including motor vehicles, armoured personnel carriers , amphibious vehicles, airplanes, trains, skateboards and wheelbarrows. Nozzles are used in conjunction with almost all reaction engines. Vehicles using nozzles include jet aircraft, rockets, and personal watercraft . While most nozzles take

1632-400: A vehicle's steering through the gyroscopic effect . They have been used experimentally in gyrobuses . Wind energy is used by sailboats and land yachts as the primary source of energy. It is very cheap and fairly easy to use, the main issues being dependence on weather and upwind performance. Balloons also rely on the wind to move horizontally. Aircraft flying in the jet stream may get

1700-405: Is fuel . External combustion engines can use almost anything that burns as fuel, whilst internal combustion engines and rocket engines are designed to burn a specific fuel, typically gasoline, diesel or ethanol . Food is the fuel used to power non-motor vehicles such as cycles, rickshaws and other pedestrian-controlled vehicles. Another common medium for storing energy is batteries , which have

1768-519: Is an example of capturing kinetic energy where the brakes of a vehicle are augmented with a generator or other means of extracting energy. When needed, the energy is taken from the source and consumed by one or more motors or engines. Sometimes there is an intermediate medium, such as the batteries of a diesel submarine. Most motor vehicles have internal combustion engines . They are fairly cheap, easy to maintain, reliable, safe and small. Since these engines burn fuel, they have long ranges but pollute

1836-478: Is common. Electric motors can also be built to be powerful, reliable, low-maintenance and of any size. Electric motors can deliver a range of speeds and torques without necessarily using a gearbox (although it may be more economical to use one). Electric motors are limited in their use chiefly by the difficulty of supplying electricity. Compressed gas motors have been used on some vehicles experimentally. They are simple, efficient, safe, cheap, reliable and operate in

1904-414: Is deformed and releases energy as it is allowed to return to its ground state. Systems employing elastic materials suffer from hysteresis , and metal springs are too dense to be useful in many cases. Flywheels store energy in a spinning mass. Because a light and fast rotor is energetically favorable, flywheels can pose a significant safety hazard. Moreover, flywheels leak energy fairly quickly and affect

1972-438: Is desirable and important in supplying traction to facilitate motion on land. Most land vehicles rely on friction for accelerating, decelerating and changing direction. Sudden reductions in traction can cause loss of control and accidents. Most vehicles, with the notable exception of railed vehicles, have at least one steering mechanism. Wheeled vehicles steer by angling their front or rear wheels. The B-52 Stratofortress has

2040-1164: Is located near the plant. The Palace of Culture of the plant hosts the ballroom Dance Club Mara . 53°53′26″N 27°37′04″E  /  53.89056°N 27.61778°E  / 53.89056; 27.61778 Vehicle A vehicle (from Latin vehiculum ) is a machine designed for self- propulsion , usually to transport people, cargo , or both. The term "vehicle" typically refers to land vehicles such as human-powered vehicles (e.g. bicycles , tricycles , velomobiles ), animal-powered transports (e.g. horse-drawn carriages / wagons , ox carts , dog sleds ), motor vehicles (e.g. motorcycles , cars , trucks , buses , mobility scooters ) and railed vehicles ( trains , trams and monorails ), but more broadly also includes cable transport ( cable cars and elevators ), watercraft ( ships , boats and underwater vehicles ), amphibious vehicles (e.g. screw-propelled vehicles , hovercraft , seaplanes ), aircraft ( airplanes , helicopters , gliders and aerostats ) and space vehicles ( spacecraft , spaceplanes and launch vehicles ). This article primarily concerns

2108-518: Is never empty , a propeller could be made to work in space. Similarly to propeller vehicles, some vehicles use wings for propulsion. Sailboats and sailplanes are propelled by the forward component of lift generated by their sails/wings. Ornithopters also produce thrust aerodynamically. Ornithopters with large rounded leading edges produce lift by leading-edge suction forces. Research at the University of Toronto Institute for Aerospace Studies lead to

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2176-577: Is restricted to tip jet helicopters and high speed aircraft such as the Lockheed SR-71 Blackbird . Rocket engines are primarily used on rockets, rocket sleds and experimental aircraft. Rocket engines are extremely powerful. The heaviest vehicle ever to leave the ground, the Saturn V rocket, was powered by five F-1 rocket engines generating a combined 180 million horsepower (134.2 gigawatt). Rocket engines also have no need to "push off" anything,

2244-477: Is the ladder wagon  [ de ] , a large wagon the sides of which often consisted of ladders strapped in place to hold in hay or grain , though these could be removed to serve other needs. A common type of farm wagon particular to North America is the buckboard . Freight wagons were used for the overland hauling of freight and bulk commodities. They were not designed for transporting people and were not built for comfort. Many were constructed without

2312-497: Is the most-produced helicopter. The top commercial jet airliner is the Boeing 737 , at about 10,000 in 2018. At around 14,000 for both, the most produced trams are the KTM-5 and Tatra T3 . The most common trolleybus is ZiU-9 . Locomotion consists of a means that allows displacement with little opposition, a power source to provide the required kinetic energy and a means to control

2380-522: The American Civil War , these wagon trains would often be accompanied by the wagons of private merchants, known as sutlers , who sold goods to soldiers, as well as the wagons of photographers and news reporters. Special purpose-built support wagons existed for blacksmithing , telegraphy and even observation ballooning. In migration settings, such as the emigrant trails of the American West and

2448-533: The Great Trek of South Africa, wagons would travel together for support, navigation and protection. A group of wagons may be used to create an improvised fort called a laager , made by circling them to form an enclosure. In these settings, a chuckwagon is a small wagon used for providing food and cooking, essentially a portable kitchen. In addition to horses and oxen, animals such as mules and goats have been used as draft animals for appropriately-sized wagons. As

2516-779: The Presidential elections , police brutality, and the mass torture of protesters , the workers of MTZ joined the national strike and opposition. In 2022, Canada and Ukraine imposed sanctions on MTZ. Belarus-80.1; Belarus-82.1; Belarus-90; Belarus-92; Belarus-320; Belarus-310; Belarus-321; Belarus-422; Belarus-510; Belarus, 512; Belarus-520; Belarus-522; Belarus-572; Belarus-622; Belarus-820; Belarus-826; Belarus-892; Belarus-920; Belarus-922.3; Belarus-923.3; Belarus-1021; Belarus-Belarus-1025.2 1220.3; Belarus-1221.2; Belarus-1523; Belarus-2022.3; Belarus-3022DTS.1; Belarus-3522.; Belarus-5022 Belarus-80X; Belarus-100X; Belarus-920R; Belarus-921.3; BELARUS-921.4-10 / 91. From November 1950 to August 1951

2584-584: The 1880s to 1920s and held up to 500 gallons of oil or spirits. In the city center of Schwäbisch Gmünd , Germany, since 1992 the city's plants are irrigated using a horse-drawn wagon with a water tank . Wagons have also served as the first mobile homes , as mobile workshops, and mobile kitchens. Travelling circuses decorated their wagons to be able to take part in the grand parade —even packing wagons for equipment, animal cage wagons, living vans and band wagons. Popular in North America was, and still is,

2652-506: The US and Canada is carried on through a local distributor, MTZ Equipment Ltd. In 2015, MTZ produced 2,424 tractors, an increase of 45% compared to the previous year (1,648 tractors). In 2017, 92.1% tractors of 31,011 produced were exported. Eight countries imported more than 500 "Belarus" tractors: Russia (11,135), Pakistan (4,845), Ukraine (4,028), Kazakhstan (2,106), Azerbaijan (1,637), Hungary (871), Romania (812), Lithuania (736). In 2020, after

2720-863: The advantages of being responsive, useful in a wide range of power levels, environmentally friendly, efficient, simple to install, and easy to maintain. Batteries also facilitate the use of electric motors, which have their own advantages. On the other hand, batteries have low energy densities, short service life, poor performance at extreme temperatures, long charging times, and difficulties with disposal (although they can usually be recycled). Like fuel, batteries store chemical energy and can cause burns and poisoning in event of an accident. Batteries also lose effectiveness with time. The issue of charge time can be resolved by swapping discharged batteries with charged ones; however, this incurs additional hardware costs and may be impractical for larger batteries. Moreover, there must be standard batteries for battery swapping to work at

2788-458: The air, causing harmful acid rain . While intermittent internal combustion engines were once the primary means of aircraft propulsion, they have been largely superseded by continuous internal combustion engines, such as gas turbines . Turbine engines are light and, particularly when used on aircraft, efficient. On the other hand, they cost more and require careful maintenance. They can also be damaged by ingesting foreign objects, and they produce

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2856-417: The aircraft when retracted. Reverse thrust is also used in many aeroplane engines. Propeller aircraft achieve reverse thrust by reversing the pitch of the propellers, while jet aircraft do so by redirecting their engine exhausts forward. On aircraft carriers , arresting gears are used to stop an aircraft. Pilots may even apply full forward throttle on touchdown, in case the arresting gear does not catch and

2924-410: The environment. A related engine is the external combustion engine . An example of this is the steam engine. Aside from fuel, steam engines also need water, making them impractical for some purposes. Steam engines also need time to warm up, whereas IC engines can usually run right after being started, although this may not be recommended in cold conditions. Steam engines burning coal release sulfur into

2992-625: The first large-scale rocket program. The Opel RAK.1 became the first rocket car ; the following year, it also became the first rocket-powered aircraft . In 1961, the Soviet space program 's Vostok 1 carried Yuri Gagarin into space. In 1969, NASA 's Apollo 11 achieved the first Moon landing . In 2010, the number of motor vehicles in operation worldwide surpassed 1 billion, roughly one for every seven people. There are over 1 billion bicycles in use worldwide. In 2002 there were an estimated 590 million cars and 205 million motorcycles in service in

3060-650: The first sustained, controlled, reproducible flights. In 1903, the Wright brothers flew the Wright Flyer , the first controlled, powered aircraft, in Kitty Hawk, North Carolina . In 1907, Gyroplane No.I became the first tethered rotorcraft to fly. The same year, the Cornu helicopter became the first rotorcraft to achieve free flight. In 1928, Opel initiated the Opel-RAK program,

3128-428: The float or show wagon, driven by six horses pulling a highly decorated show wagon with a token payload, and heavily painted with company or owner advertising. Horse-drawn wagons are popular attractions at tourist destinations for leisurely sightseeing. During the transition to mechanized vehicles from animal-powered, vehicles were built by coachbuilders and the bodies and undercarriages were substantially similar to

3196-739: The following international classification: Wagon A wagon (or waggon in British English ) is a heavy four-wheeled vehicle pulled by draft animals or on occasion by humans, used for transporting goods , commodities, agricultural materials, supplies and sometimes people. Wagons are immediately distinguished from carts (which have two wheels) and from lighter four-wheeled vehicles primarily for carrying people, such as carriages . Animals such as horses , mules , or oxen usually pull wagons. One animal or several, often in pairs or teams may pull wagons. However, there are examples of human-propelled wagons, such as mining corfs . A wagon

3264-418: The ground. A Boeing 757 brake, for example, has 3 stators and 4 rotors. The Space Shuttle also uses frictional brakes on its wheels. As well as frictional brakes, hybrid and electric cars, trolleybuses and electric bicycles can also use regenerative brakes to recycle some of the vehicle's potential energy. High-speed trains sometimes use frictionless Eddy-current brakes ; however, widespread application of

3332-593: The horse-drawn vehicles. In modern times, the term station wagon survives as a type of automobile. It describes a car with a passenger compartment that extends to the back of the vehicle, that has no trunk, that has one or more rear seats that can be folded making space for carrying cargo, as well as featuring an opening tailgate or liftgate. In migration and military settings, wagons were often found in large groups called wagon trains . In warfare, large groups of supply wagons were used to support traveling armies with food and munitions, forming "baggage trains". During

3400-614: The more ubiquitous land vehicles, which can be broadly classified by the type of contact interface with the ground : wheels , tracks , rails or skis , as well as the non-contact technologies such as maglev . ISO 3833-1977 is the international standard for road vehicle types, terms and definitions. It is estimated by historians that boats have been used since prehistory ; rock paintings depicting boats, dated from around 50,000 to 15,000 BC, were found in Australia . The oldest boats found by archaeological excavation are logboats , with

3468-483: The motion, such as a brake and steering system. By far, most vehicles use wheels which employ the principle of rolling to enable displacement with very little rolling friction . It is essential that a vehicle have a source of energy to drive it. Energy can be extracted from external sources, as in the cases of a sailboat , a solar-powered car , or an electric streetcar that uses overhead lines. Energy can also be stored, provided it can be converted on demand and

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3536-683: The oldest logboat found, the Pesse canoe found in a bog in the Netherlands, being carbon dated to 8040–7510 BC, making it 9,500–10,000 years old, A 7,000 year-old seagoing boat made from reeds and tar has been found in Kuwait. Boats were used between 4000 -3000 BC in Sumer , ancient Egypt and in the Indian Ocean. There is evidence of camel pulled wheeled vehicles about 4000–3000 BC. The earliest evidence of

3604-682: The plant had manufactured 3,000,000 tractors. In 1999, it produced 58% of all tractors manufactured in the CIS . In 2017, its share in the production of wheel tractors in CIS countries was 87%. MTZ tractors were exported to Western Europe, too. In 2013, the plant tractors were certified in the US by the Environment Protection Agency (EPA) and in Canada by Environment Canada and received full approval for their import and distribution in both countries. Since 2010, distribution of Belarus tractors in

3672-575: The plant manufactured the caterpillar tractor KD-25  [ ru ] "Kirovets". Also for some time the plant manufactured skidders . Joint assembly production of MTZ tractors began in 2013 in Cambodia , at MTZ's first assembly plant in the ASEAN region. Tractors are now exported to all ASEAN countries. Until 2010 Minsk Tractor Works was a sponsor of a Belarusian Premier League football team MTZ-RIPO Minsk . Games were played at Traktor stadium , which

3740-466: The propeller has been tested on many terrestrial vehicles, including the Schienenzeppelin train and numerous cars. In modern times, propellers are most prevalent on watercraft and aircraft, as well as some amphibious vehicles such as hovercraft and ground-effect vehicles . Intuitively, propellers cannot work in space as there is no working fluid; however, some sources have suggested that since space

3808-463: The rate of deceleration or where the brakes have failed, several mechanisms can be used to stop a vehicle. Cars and rolling stock usually have hand brakes that, while designed to secure an already parked vehicle, can provide limited braking should the primary brakes fail. A secondary procedure called forward-slip is sometimes used to slow airplanes by flying at an angle, causing more drag. Motor vehicle and trailer categories are defined according to

3876-404: The rear wheels were 7 feet (2.13 m) in diameter, and the wagons weighed 7,800 pounds (3,500 kg) empty. Freight wagons in the American West were hauled by oxen, mules or horses. Freight wagon teams would generally haul between three and thirty-five tons of freight when hauling to mining outposts. On the return, they would haul ore to steamboats or to railroad depots. A delivery wagon

3944-565: The shape of a cone or bell , some unorthodox designs have been created such as the aerospike . Some nozzles are intangible, such as the electromagnetic field nozzle of a vectored ion thruster. Continuous track is sometimes used instead of wheels to power land vehicles. Continuous track has the advantages of a larger contact area, easy repairs on small damage, and high maneuverability. Examples of vehicles using continuous tracks are tanks, snowmobiles and excavators. Two continuous tracks used together allow for steering. The largest land vehicle in

4012-462: The storing medium's energy density and power density are sufficient to meet the vehicle's needs. Human power is a simple source of energy that requires nothing more than humans. Despite the fact that humans cannot exceed 500 W (0.67 hp) for meaningful amounts of time, the land speed record for human-powered vehicles (unpaced) is 133 km/h (83 mph), as of 2009 on a recumbent bicycle . The energy source used to power vehicles

4080-440: The technology has been limited by overheating and interference issues. Aside from landing gear brakes, most large aircraft have other ways of decelerating. In aircraft, air brakes are aerodynamic surfaces that provide braking force by increasing the frontal cross section, thus increasing the increasing the aerodynamic drag of the aircraft. These are usually implemented as flaps that oppose air flow when extended and are flush with

4148-541: The use of a pulse jet was the V-1 flying bomb . Pulse jets are still occasionally used in amateur experiments. With the advent of modern technology, the pulse detonation engine has become practical and was successfully tested on a Rutan VariEze . While the pulse detonation engine is much more efficient than the pulse jet and even turbine engines, it still suffers from extreme noise and vibration levels. Ramjets also have few moving parts, but they only work at high speed, so their use

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4216-464: The world, the Bagger 293 , is propelled by continuous tracks. Propellers (as well as screws, fans and rotors) are used to move through a fluid. Propellers have been used as toys since ancient times; however, it was Leonardo da Vinci who devised what was one of the earliest propeller driven vehicles, the "aerial-screw". In 1661, Toogood & Hays adopted the screw for use as a ship propeller. Since then,

4284-642: The world. At least 500 million Chinese Flying Pigeon bicycles have been made, more than any other single model of vehicle. The most-produced model of motor vehicle is the Honda Super Cub motorcycle, having sold 60 million units in 2008. The most-produced car model is the Toyota Corolla , with at least 35 million made by 2010. The most common fixed-wing airplane is the Cessna 172 , with about 44,000 having been made as of 2017. The Soviet Mil Mi-8 , at 17,000,

4352-630: Was a Soviet-designed screw-propelled vehicle designed to retrieve cosmonauts from the Siberian wilderness. All or almost all of the useful energy produced by the engine is usually dissipated as friction; so minimizing frictional losses is very important in many vehicles. The main sources of friction are rolling friction and fluid drag (air drag or water drag). Wheels have low bearing friction, and pneumatic tires give low rolling friction. Steel wheels on steel tracks are lower still. Aerodynamic drag can be reduced by streamlined design features. Friction

4420-644: Was a predominant form of freight wagon in the late 18th and 19th centuries, often used for hauling goods on the Great Wagon Road in the Appalachian Valley and across the Appalachian Mountains. Even larger wagons were built, such as the twenty-mule team wagons , used for hauling borax from Death Valley , which could haul 36 short tons (32 long tons; 33 t) per pair. The wagons' bodies were 16 feet (4.88 m) long and 6 feet (1.83 m) deep;

4488-445: Was formerly called a wain and one who builds or repairs wagons is a wainwright . More specifically, a wain is a type of horse- or oxen-drawn, load-carrying vehicle, used for agricultural purposes rather than transporting people. A wagon or cart, usually four-wheeled; for example, a haywain, normally has four wheels, but the term has now acquired slightly poetical connotations, so is not always used with technical correctness. However,

4556-644: Was of little practical use. In 1817, The Laufmaschine ("running machine"), invented by the German Baron Karl von Drais , became the first human means of transport to make use of the two-wheeler principle . It is regarded as the forerunner of the modern bicycle (and motorcycle). In 1885, Karl Benz built (and subsequently patented) the Benz Patent-Motorwagen , the first automobile, powered by his own four-stroke cycle gasoline engine . In 1885, Otto Lilienthal began experimental gliding and achieved

4624-456: Was used to deliver merchandise such as milk, bread, produce, meat and ice to residential and commercial customers, predominantly in urban settings. The concept of express wagons and of paneled delivery vans developed in the 19th century. By the end of the 19th century, delivery wagons were often finely painted, lettered and varnished, serving as image-builders and rolling advertisements. Special forms of delivery wagon include an ice wagon and

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