A propeller is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working fluid such as water or air. Propellers are used to pump fluid through a pipe or duct, or to create thrust to propel a boat through water or an aircraft through air. The blades are shaped so that their rotational motion through the fluid causes a pressure difference between the two surfaces of the blade by Bernoulli's principle which exerts force on the fluid. Most marine propellers are screw propellers with helical blades rotating on a propeller shaft with an approximately horizontal axis.
A tractor is an engineering vehicle specifically designed to deliver a high tractive effort at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanize agricultural tasks, especially tillage, and now many more. Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised.
The Ford Taunus is a family car that was sold by Ford Germany throughout Europe. Models from 1970 onward were built on the same basic construction as the Ford Cortina MkIII in the United Kingdom, and later on, the two car models were essentially the same, differing almost only in the placement of the steering wheel. The model line was named after the Taunus mountain range in Germany, and was first made in 1939, and continued through several versions until 1994.
A lawn mower is a device utilizing one or more revolving blades to cut a grass surface to an even height. The height of the cut grass may be fixed by the mower's design but generally is adjustable by the operator, typically by a single master lever or by a mechanism on each of the machine's wheels. The blades may be powered by manual force, with wheels mechanically connected to the cutting blades so that the blades spin when the mower is pushed forward, or the machine may have a battery-powered or plug-in electric motor. The most common self-contained power source for lawn mowers is a small 4-stroke internal combustion engine. Smaller mowers often lack any form of self-propulsion, requiring human power to move over a surface; "walk-behind" mowers are self-propelled, requiring a human only to walk behind and guide them. Larger lawn mowers are usually either self-propelled "walk-behind" types or, more often, are "ride-on" mowers that the operator can sit on and control. A robotic lawn mower is designed to operate either entirely on its own or less commonly by an operator on a remote control.
A mower is a person or machine that cuts (mows) grass or other plants that grow on the ground. Usually mowing is distinguished from reaping, which uses similar implements, but is the traditional term for harvesting grain crops, e.g. with reapers and combines.
A continuously variable transmission (CVT) is an automated transmission that can change through a continuous range of gear ratios. This contrasts with other transmissions that provide a limited number of gear ratios in fixed steps. The flexibility of a CVT with suitable control may allow the engine to operate at a constant angular velocity while the vehicle moves at varying speeds.
The Ferrari F50 is a limited production mid-engine sports car manufactured by Italian automobile manufacturer Ferrari from 1995 until 1997. Introduced in 1995, the car is a two-door, two seat targa top. The F50 is powered by a 4.7 L naturally aspirated Tipo F130B 60-valve V12 engine that was developed from the 3.5 L V12 used in the 1990 Ferrari 641 Formula One car. The car's design is an evolution of the 1989 Ferrari Mythos concept car.
Trojan was a British automobile manufacturer producing light cars between 1914 and 1965, and light commercial vehicles for a short time.
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 sometimes 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. Typically they are incapable of speeds above 52 km/h (32 mph); however, in recent years larger motors have been built, allowing bikes to reach speeds of upwards of 113 km/h.
The Volkswagen Concept R is a concept car developed by the German automaker Volkswagen and officially unveiled at the September 2003 Frankfurt Auto Show. It is a study of a sporty two seat roadster, with mid-engine and rear wheel drive. The Concept R is powered by a V6 3.2 L FSI petrol engine developing a maximum output of 265 PS at 6,250 rpm and 320 N⋅m (240 ft⋅lbf) of torque at 2,800 rpm.
The Claas Cougar is a self-propelled mower produced by the German agricultural machinery manufacturer Claas. The mower, which is named after the cougar, a large American cat, was first presented in 2003. Due to its maximum cutting width of 14 metres (46 ft) it is classified as the largest self-propelled mower in the world.
The Sidecar TT is a motorcycle-with-sidecar road race competition held over two legs which takes place during the Isle of Man TT festival, an annual event at the end of May and beginning of June. Between 1954 and 1976 this race was part of the Grand Prix motorcycle racing world championship.
Roths Industries, Inc. (1945–1960) was a manufacturer of small garden tractors and other agricultural equipment founded by Herbert C. Roths in Alma, Michigan. The company manufactured Garden King Walking Tractors, BesRo Riding Tractors, and Till Ro Stalk Cutters.
The third-generation Honda Civic is an automobile which was produced by Honda from 1983 until 1987. It was introduced in September 1983 for the 1984 model year. The Civic's wheelbase was increased by 2–5 inches (5.1–12.7 cm) to 93.7 inches (238 cm) for the hatchback or 96.5 inches (245 cm) for the sedan. A three-door hatchback/kammback, four-door sedan, the five-door "Shuttle" station wagon, and sporting CRX coupé shared common underpinnings. This included MacPherson strut suspension with torsion bars in the front and a rear beam with coil springs. However, the body panels were largely different between models. The Civic-based Honda Quint five-door hatchback also underwent a model change, and became the Honda Quint Integra, available as both a three- and five-door fastback. The Quint Integra was sold at the Japanese Honda Verno dealership along with the CR-X. The Civic in Japan was now exclusive to Honda Primo, along with Honda's kei cars as well as superminis like the Honda City.
The Jaguar F-Type (X152) is a series of two-door, two-seater sports cars manufactured by British car manufacturer Jaguar Land Rover under their Jaguar Cars marque since 2013. The car's JLR D6a platform is based on a shortened version of the XK's platform. It is the so-called "spiritual successor" to the E-Type.
The Pitcairn PA-34 and Pitcairn PA-33, given the United States Navy (USN) designation Pitcairn OP-2 and United States Army designation Pitcairn YG-2 respectively were reconnaissance autogyros designed and built in 1936 for evaluation.
Atco (Atlas Chain Company) Limited was a British mower company which traded as "Atco Ltd" from 1981 to 1990, making lawn mowers and garden tools. It sold a range of lawn mowers including lawn and garden tractors.
The TeST TST-6 Duo is a Czech shoulder-wing, two-seats in side-by-side configuration motor glider that was designed and produced by TeST of Brno.
The Lister Auto-Truck was a small monowheel tractor built for moving light loads around factories, railway yards and similar sites. They were based on a design originally by Auto Mowers Ltd, and were built by R A Lister and Company of Dursley, Gloucestershire, well known for their range of small stationary engines. A narrow-gauge rail version of the Auto-Truck was made along similar stylistic lines as regards the bonnetted engine, and its light weight made it popular for temporary and lightly laid tracks such as used on brickworks, peat bogs, and construction sites. Production of both the Auto-Truck and the Rail-Truck extended from the 1920s to the 1970s.
The Porsche 911 is a two-door 2+2 high performance rear-engined sports car introduced in September 1964 by Porsche AG of Stuttgart, Germany. It has a rear-mounted flat-six engine and originally a torsion bar suspension. The car has been continuously enhanced through the years but the basic concept has remained unchanged. The engines were air-cooled until the introduction of the 996 series in 1998.
