A linear motor is an electric motor that has had its stator and rotor "unrolled", thus, instead of producing a torque (rotation), it produces a linear force along its length. However, linear motors are not necessarily straight. Characteristically, a linear motor's active section has ends, whereas more conventional motors are arranged as a continuous loop.
Propulsion is the generation of force by any combination of pushing or pulling to modify the translational motion of an object, which is typically a rigid body but may also concern a fluid. The term is derived from two Latin words: pro, meaning before or forward; and pellere, meaning to drive. A propulsion system consists of a source of mechanical power, and a propulsor.
A hovercraft, also known as an air-cushion vehicle or ACV, is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces.
A linear induction motor (LIM) is an alternating current (AC), asynchronous linear motor that works by the same general principles as other induction motors but is typically designed to directly produce motion in a straight line. Characteristically, linear induction motors have a finite primary or secondary length, which generates end-effects, whereas a conventional induction motor is arranged in an endless loop.
A hoverboard is a levitating board used for personal transportation, first described in science-fiction, and made famous by the appearance of a skateboard-like hoverboard in the film Back to the Future Part II. Many attempts have been made to invent a functioning hoverboard.
Maglev is a system of train transportation that is levitated along a guideway through the use of magnetic forces. By levitating, maglev trains remove the rail-to-wheel contact present in conventional railways, eliminating rolling resistance.
Landspeeders are fictional anti-gravity craft used through the Star Wars movies and Star Wars expanded universe. They are depicted both in civilian and military capacities, and several versions have been merchandised as toys and models.
A surface effect ship (SES) or sidewall hovercraft is a watercraft that has both an air cushion, like a hovercraft, and twin hulls, like a catamaran. When the air cushion is in use, a small portion of the twin hulls remains in the water. When the air cushion is turned off ("off-cushion" or "hull borne"), the full weight of the vessel is supported by the buoyancy of the twin hulls.
The Aérotrain was an experimental Tracked Air Cushion Vehicle (TACV), or hovertrain, developed in France from 1965 to 1977 under the engineering leadership of Jean Bertin (1917–1975) – and intended to bring the French rail network to the cutting edge of land-based public transportation.
A vactrain is a proposed design for very-high-speed rail transportation. It is a maglev line using partly evacuated tubes or tunnels. Reduced air resistance could permit vactrains to travel at very high (hypersonic) speeds with relatively little power—up to 6,400–8,000 km/h (4,000–5,000 mph). This is 5–6 times the speed of sound in Earth's atmosphere at sea level.
A ground effect train is a conceptualized alternative to a magnetic levitation (maglev) train. In both cases the objective is to prevent the vehicle from making contact with the ground. Whereas a maglev train accomplishes this through the use of magnetism, a ground effect train uses an air cushion; either in the manner of a hovercraft or using the "wing-in-ground-effect" design.
The following outline is provided as an overview of and topical guide to vehicles:
U.S. International Transportation Exposition, better known as Transpo '72, was a trade show held on 300 acres (1.2 km2) of land at Dulles International Airport outside Washington, D.C., for nine days from May 27 to June 4, 1972. The $10 million event, sponsored by the U.S. Department of Transportation, was a showcase for all sorts of transportation-related technologies. Over a million visitors flocked to the show from all over the world. According to the Wall Street Journal, it was "the biggest show the government has put on since World War II."
Levicar was a concept car Ford displayed in 1959. It was a one-person, small in a modern sense, car propelled by maglev. The car was designed to be levitated by magnets, and was intended to be developed for high-speed transportation systems. The Levicar was very light and when raised off its guide rail by the magnetics it only required a blower in the back to propel it. A working model was actually built. While technically a success, the whole project was dropped due to financial constraints.
Tracked Hovercraft was an experimental high-speed train developed in the United Kingdom during the 1960s. It combined two British inventions, the hovercraft and linear induction motor, in an effort to produce a train system that would provide 250 mph (400 km/h) inter-city service with lowered capital costs compared to other high-speed solutions. Substantially similar to the French Aérotrain and other hovertrain systems of the 1960s, Tracked Hovercraft suffered a similar fate to these projects when it was cancelled as a part of wide budget cuts in 1973.
A hovertrain is a type of high-speed train that replaces conventional steel wheels with hovercraft lift pads, and the conventional railway bed with a paved road-like surface, known as the track or guideway. The concept aims to eliminate rolling resistance and allow very high performance, while also simplifying the infrastructure needed to lay new lines. Hovertrain is a generic term, and the vehicles are more commonly referred to by their project names where they were developed. In the UK they are known as tracked hovercraft, in the US they are tracked air-cushion vehicles. The first hovertrain was developed by Jean Bertin in the early 1960s in France, where they were marketed as the Aérotrain before being abandoned by the French government.
Hovercraft tank, or, officially, the amphibious hovering tank was developed at Moscow aircraft plant #84 in the USSR in 1937 by a group of engineers led by professor Vladimir Israilevich Levkov. Its development never left the mockup stage.
The Ford Mach I, also known as the Ford Levacar Mach I, is a concept car hovercraft developed by the Ford Motor Company in the 1950s. The Mach I was a single-seat automobile which rode on pressurized air, not wheels. Its name was inspired by the speed Mach 1, an aspiration speed not yet achieved by vehicles at the time. It used air pressure at a force of 15–100 psi (100–690 kPa) to provide lift and propulsion. In experiments, 50–60 psi (340–410 kPa) was used so that 15 hp (11 kW) was needed for levitation and 2.5 hp (1.9 kW) propelled it 20 mph (32 km/h). An advertisement for the Mach I appeared in the magazine Boys' Life in 1960, in which it indicated the single-seater's dimensions: 94 in (2.4 m) long; 48 in (1.2 m) high; 54 in (1.4 m) wide.
The Curtiss-Wright Model 2500 Air Car was developed in November 1959 with intentions that a hovercraft would be accepted by the public as a replacement for the car. The hovercraft concept never caught on for general use, but the potential capabilities of the Model 2500 was not lost on the US Army.
