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Articulated trams, were invented and first used by the Boston Elevated Railway in 1912–13. [2] This was instead of using trailers or multiple units, which had been attempted in the early 1900s. The articulated design allows passengers (and fare inspectors) to move the entire length of the vehicle, whether stopped or in motion.
Articulated passenger cars are becoming increasingly common in Europe and the US. The passageways between the car elements are permanently attached. There is a safety benefit claimed that if the train derails, it is less likely to jackknife and modern construction techniques prevent telescoping. Articulated cars are not, however, a new idea.
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The vehicle was steered not by turning the front wheels, but by bending the middle section with hydraulic rams to effect a turn, similar to large construction equipment. The Landmaster's bodywork was made with 3 ⁄ 8 -inch (1 cm) steel plate, which helped it tip the scales at over 10 tons.
Tracked articulated vehicles typically steer by actuating the linkage connecting the cars of an articulated tracked vehicle. This linkage, called the train joint, uses hydraulic actuators [ 1 ] to position the front vehicle in an opposing direction to the rear one, and curves the direction of travel this way. [ 2 ]
Also gas pedal. A throttle in the form of a foot-operated pedal, or sometimes a hand-operated lever or paddle, by which the flow of fuel to the engine (and thereby the engine speed) is controlled, with depression of the pedal causing the vehicle to accelerate. admission stroke See induction stroke. aftermarket air brake 1. A type of brake in which the force that actuates the brake mechanism is ...
To fill the need for such vehicles, a specialized design bureau was established with the task of developing articulated tracked vehicles. Also a military vehicle able to operate on USSR northern borders was deemed necessary. In February 1971 the first two ATVs, designated DT-LP and DT-L, were produced for the State trials.
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