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The connector plate slid into a female receptacle on the rear of the trailer in front and was secured with a steel pin. At the head of a Road Railer train there was an adaptor truck equipped with one fifth wheel and one regular AAR Type "E" or Type "F" automatic coupler. Each semi-trailer had one king pin at each end.
Road–rail excavator British jeep in France, 1945. A road–rail vehicle or a rail–road vehicle is a dual-mode vehicle which can operate both on rail tracks and roads. [1] [2] They are also known as two-way vehicles (‹See Tfd› German: Zweiwegefahrzeug), [3] hi-rail (from highway and railway, or variations such as high-rail, HiRail, Hy-rail [failed verification]), [4] and rail and road ...
Conventional style cab tractor A cab over semi-tractor Tractor with an end-dump trailer A FAW semi-trailer truck in China A semi-trailer truck (also known by a wide variety of other terms - see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel. Other terms There are a wide ...
A "Victory Oil" semi-trailer truck from 1943. The trucking industry in the United States has affected the political and economic history of the United States in the 20th century. Before the invention of automobiles, most freight was moved by train or horse-drawn vehicle. During World War I, the military was the first to use trucks extensively.
Houston - About 450 people are killed every year in trailer hitch accidents on U.S. roads, according to the National Highway Traffic Safety Administration. Another 21,000 are injured. These ...
A diesel road train in Alice Springs, c. 1938 - 1939. A road train, also known as a land train or long combination vehicle (LCV) is a semi-truck used to move road freight more efficiently than single-trailer semi-trucks. It consists of one semi-trailer or more connected together with or without a tractor. [1]
In the UK, tractor unit and trailer combinations are referred to as articulated lorries, or "artics". [1]A semi-trailer truck, also known as a semitruck, [1] (or semi, [2] eighteen-wheeler, [3] big rig, [4] tractor-trailer [5] or, by synecdoche, a semitrailer) [6] [a] is the combination of a tractor unit and one or more semi-trailers to carry freight.
Articulated hauler. An articulated hauler, articulated dump truck (ADT), or sometimes a dump hauler, is a very large heavy-duty type of dump truck used to transport loads over rough terrain, and occasionally on public roads. The vehicle usually has all-wheel drive and consists of two basic units: the front section, generally called the tractor ...