Cow-calf
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Cow-calf
In rail transport, a cow-calf (also cow and calf) locomotive is a set of switcher-type diesel locomotives. The set usually is a pair; some 3-unit sets (with two calves, also known as herds) were built, but this was rare. A cow is equipped with a driving cab; a calf is not. The two are coupled together (either with regular couplers or a semi-permanent drawbar) and are connected with MU cables and brake lines so that both locomotive units can be operated from the single cab. Cows are analogous to A units and calves to B unit road locomotives. Both have prime movers. Like the early EMD FT locomotives, the Cow-calf sets were typically built as mated pairs, with the Cow (or cabbed unit) and calf (or cabless unit) sharing a number. However this was not always the case, with over time many of the sets being broken up and couplers added to aid with versatility. Cow-calf locomotives can be distinguished from the sometimes very similar looking slug and slug mother sets by the fact that bot ...
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Diesel Locomotive
A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels. Early internal combustion locomotives and railcars used kerosene and gasoline as their fuel. Rudolf Diesel patented his first compression-ignition engine in 1898, and steady improvements to the design of diesel engines reduced their physical size and improved their power-to-weight ratios to a point where one could be mounted in a locomotive. Internal combustion engines only operate efficiently within a limited power band, and while low power gasoline engines could be coupled to mechanical transmissions, the more powerful diesel engines required the development of new forms of transmission. This is because clutches would need to be very large at these power levels and would not fit in a standard -wide locomotive frame, or wear too quic ...
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Slug (railroad)
In railroading, a slug is a version of a diesel-electric locomotive which lacks a prime mover, and often a cab. It derives the electrical power needed to operate its traction motors and motor controls from a fully-powered mother locomotive. When coupled together it takes advantage of the excess current that the mother's diesel-electric locomotive produces at low speed, providing additional horsepower and braking at such operation without the expense of a full locomotive. A slug is distinct from a B–unit, which has both a prime mover and traction motors but no cab. A slug may retain an operator's cab to allow engineers to operate a train with the slug in the lead, or may have the cab and much of the body removed to save space and allow the operator in the mother better rear visibility. Basic principles A slug is used to increase adhesive weight, allowing full power to be applied at a lower speed, thus allowing a higher maximum tractive effort. They are often used in low-s ...
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Multiple-unit Train Control
Multiple-unit train control, sometimes abbreviated to multiple-unit or MU, is a method of simultaneously controlling all the traction equipment in a train from a single location—whether it is a multiple unit comprising a number of self-powered passenger cars or a set of locomotives—with only a control signal transmitted to each unit. This contrasts with arrangements where electric motors in different units are connected directly to the power supply switched by a single control mechanism, thus requiring the full traction power to be transmitted through the train. A set of vehicles under multiple unit control is referred to as a consist in the United States. Origins Multiple unit train control was first used in electric multiple units in the 1890s. The Liverpool Overhead Railway The Liverpool Overhead Railway opened in 1893 with two-car electric multiple units, controllers in cabs at both ends directly controlling the traction current to motors on both cars. Frank J. Spragu ...
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EMD TR1
The EMD TR1 was a two-unit "cow-calf" diesel locomotive built by General Motors Electro-Motive Division of La Grange, Illinois, in 1941. Two pairs were built for the Illinois Central Railroad, the only purchaser. The locomotive units strongly resembled the EMD NW3, with a long frame, Blomberg B road trucks, and a large cab connected to a wide area of hood that tapered going forward. The locomotives incorporated the machinery of the EMD FT in switcher bodywork; a V16 EMD 567 diesel engine of in each unit. The cow and calf units were semipermanently coupled together with a drawbar instead of couplers, in similar fashion to the FT's twin-unit sets. The two locomotive pairs were numbered 9250A&B and 9251A&B, later renumbered 1350A&B and 1351A&B. They initially were assigned to Markham Yard south of Chicago, IL, but by the early 1950s had been reassigned to the yard at East St. Louis, IL. Both remained in this service until they were retired in 1966 and traded in to EMD in pa ...
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Kelso, California
Kelso is a ghost town and defunct railroad depot in the Mojave National Preserve in San Bernardino County, California, USA. It was named after railroad worker John H. Kelso, whose name was placed into a hat along with two other workers to decide the name of the town. The town was built in 1905 specifically as a railroad station along the rail line between Utah and Los Angeles, originally called "Siding 16," because of its location and nearby springs that provided abundant water. Starting off as what was a simple train depot in the 1920s, the town of Kelso boomed briefly to as many as 2000 residents in the 1940s, when borax and iron mines opened nearby. Gold and silver were also discovered in the nearby hills of what became known as the Kelso district. The town shrank again when the mines closed after about a decade. Kelso was a base of operations for the San Pedro, Los Angeles and Salt Lake Railroad, connecting track of Union Pacific Railroad, to which the SPLA&SL had negotiated ...
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Road Switcher
A road switcher is a type of railroad locomotive designed to both haul railcars in mainline service and shunt them in railroad yards. Both type and term are North American in origin, although similar types have been used elsewhere. A road switcher must be able to operate and have good visibility in both directions. As a road engine, a road switcher must be able to operate at road speeds, with suitable power and cooling capacity. It has high-speed road trucks rather than low-speed switcher only trucks. Modern road trucks are always equipped with "frictionless" roller bearings, whereas switcher trucks were almost always equipped with "friction" plain bearings, until plain bearings were outlawed in interchange service on both railcars and locomotives. Overview For the reasons given above, road switchers are generally hood units. The set-back cab of a hood unit provides more safety in the event of a collision at speed than most switcher designs, and the rear visibility is muc ...
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Belt Railway Of Chicago
The Belt Railway Company of Chicago , headquartered in Bedford Park, IL, is the largest switching terminal railroad in the United States. It is co-owned by six Class I railroads — BNSF Railway, Canadian National Railway, Canadian Pacific Railway (the BRC's north-south main line's northern terminus is, like the Indiana Harbor Belt, the Milwaukee District West Line in Chicago's Cragin neighborhood), CSX Transportation, Norfolk Southern Railway, and Union Pacific Railroad — each of which uses the switching and interchange facilities of the BRC. Owner lines and other railroads bring their trains to the Belt Railway to be separated, classified, and re-blocked into new trains for departure. The BRC also provides rail terminal services to approximately 100 local manufacturing industries. The company employs about 440 people, including its own police force. BRC trackage The BRC has 28 miles (45 km) of mainline route with interchanges to each of its owner railroads, and ...
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Two Foot Gauge Railways In Australia
A list of narrow-gauge railways in Australia. Installations See also * 2 ft and 600 mm gauge railways *Heritage railway * Narrow-gauge railways in Australia *Railways on the West Coast of Tasmania The history of the Railways on the West Coast of Tasmania has fascinated enthusiasts from around the world, because of the combination of the harsh terrain in which the railways were created, and the unique nature of most of the lines. Points of ... References External linksQueensland sugar cane railways today {{Navbox track gauge Narrow gauge railways in Australia ...
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Baltimore And Ohio 9624 (TR4) Cow And Calf At Riverside Yard, Baltimore (22341847029)
Baltimore ( , locally: or ) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore was designated an independent city by the Constitution of Maryland in 1851, and today is the most populous independent city in the United States. As of 2021, the population of the Baltimore metropolitan area was estimated to be 2,838,327, making it the 20th largest metropolitan area in the country. Baltimore is located about north northeast of Washington, D.C., making it a principal city in the Washington–Baltimore combined statistical area (CSA), the third-largest CSA in the nation, with a 2021 estimated population of 9,946,526. Prior to European colonization, the Baltimore region was used as hunting grounds by the Susquehannock Native Americans, who were primarily settled further northwest than where the city was later built. Colonists ...
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EMD TR
TR or tr may stand for Arts and entertainment Gaming * Tomb Raider, one of the most successful video game franchises * Terminal Reality, an American video game developer * A currency in online game ''TalesRunner'' * Terran Republic, a faction in the video game series ''PlanetSide'' Music * Korg TR, a variant of the Korg Triton music workstation synthesizer * Trill, notation for musical ornament * TR-808, TR-909 etc., 1980s Roland drum machines Businesses and organizations * Scoot, IATA code since 2017 * Tiger Airways, IATA code between 2003 and 2017 * Tomahawk Railway, reporting mark * Transbrasil, IATA airline code until 2001 * Team Rubicon, commonly used abbreviation * Talyllyn Railway, a Welsh railway * Thomson Reuters, a Canadian multinational media conglomerate *Texas Roadhouse, restaurant chain in the United States * Tokyu Railways. See Tokyu Corporation. Language * Tr, a digraph * Turkish language (ISO 639 alpha-1 code "tr") People * Theodore Roosevelt, the 26th presi ...
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Class 13 No
Class or The Class may refer to: Common uses not otherwise categorized * Class (biology), a taxonomic rank * Class (knowledge representation), a collection of individuals or objects * Class (philosophy), an analytical concept used differently from such group phenomena as "types" or "kinds" * Class (set theory), a collection of sets that can be unambiguously defined by a property that all its members share * Hazard class, a dangerous goods classification * Social class, the hierarchical arrangement of individuals in society, usually defined by wealth and occupation * Working class, can be defined by rank, income or collar Arts, entertainment, and media * "The Class" (song), 1959 Chubby Checker song *Character class in role-playing games and other genres *Class 95 (radio station), a Singaporean radio channel Films * ''Class'' (film), 1983 American film * ''The Class'' (2007 film), 2007 Estonian film * ''The Class'' (2008 film), 2008 film (''Entre les murs'') Television * ''Class ...
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