New South Wales C38 Class Locomotive
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New South Wales C38 Class Locomotive
The C38 class (occasionally known as the 38 class and nicknamed "Pacifics" by some railwaymen) was a class of steam locomotive built for the New South Wales Government Railways in Australia. Constructed between January 1943 and November 1949, the 30 locomotives in the class were designed to haul express passenger services throughout New South Wales. They were the only New South Wales locomotives to use the popular Pacific 4-6-2 wheel arrangement and were the last steam locomotives in the state to be built for passenger train operation, all subsequent deliveries being specifically for freight haulage. Design The 38 class were first conceived in the 1930s when the NSWGR established there was a need for a locomotive to eliminate the complications of double heading on a number of fast intrastate passenger trains. The design was influenced by the fashion for streamlining at the time, including elements of the class J locomotives of the Norfolk and Western Railway and of some of t ...
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Steam
Steam is a substance containing water in the gas phase, and sometimes also an aerosol of liquid water droplets, or air. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization. Steam that is saturated or superheated is invisible; however, "steam" often refers to wet steam, the visible mist or aerosol of water droplets formed as water vapor condenses. Water increases in volume by 1,700 times at standard temperature and pressure; this change in volume can be converted into mechanical work by steam engines such as reciprocating piston type engines and steam turbines, which are a sub-group of steam engines. Piston type steam engines played a central role in the Industrial Revolution and modern steam turbines are used to generate more than 80% of the world's electricity. If liquid water comes in contact with a very hot surface or depressurizes quickly below its vapor pressure, it can create a steam explosion. ...
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Norfolk And Western Railway
The Norfolk and Western Railway , commonly called the N&W, was a US class I railroad, formed by more than 200 railroad mergers between 1838 and 1982. It was headquartered in Roanoke, Virginia, for most of its existence. Its motto was "Precision Transportation"; it had a variety of nicknames, including "King Coal" and "British Railway of America". In 1986, N&W merged with Southern Railway to form today’s Norfolk Southern Railway. The N&W was famous for manufacturing its own steam locomotives, which were built at the Roanoke Shops, as well as its own hopper cars. After 1960, N&W was the last major Class I railroad using steam locomotives; the last remaining Y class 2-8-8-2s would eventually be retired between 1964 and 1965. In December 1959, the N&W merged with the Virginian Railway (reporting mark VGN), a longtime rival in the Pocahontas coal region. By 1970, other mergers with the Nickel Plate Road and Wabash formed a system that operated of road on of track from North C ...
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Axle Load
An axle or axletree is a central shaft for a rotating wheel or gear. On wheeled vehicles, the axle may be fixed to the wheels, rotating with them, or fixed to the vehicle, with the wheels rotating around the axle. In the former case, bearings or bushings are provided at the mounting points where the axle is supported. In the latter case, a bearing or bushing sits inside a central hole in the wheel to allow the wheel or gear to rotate around the axle. Sometimes, especially on bicycles, the latter type axle is referred to as a ''spindle''. Terminology On cars and trucks, several senses of the word ''axle'' occur in casual usage, referring to the shaft itself, its housing, or simply any transverse pair of wheels. Strictly speaking, a shaft which rotates with the wheel, being either bolted or splined in fixed relation to it, is called an ''axle'' or ''axle shaft''. However, in looser usage, an entire assembly including the surrounding axle housing (typically a casting) is als ...
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South Coast Daylight Express
The South Coast Daylight Express was a limited stops passenger train operated by the New South Wales Government Railways and its successors between Sydney and Bomaderry from 1933 until January 1991. History After departing Sydney Central it travelled via the Illawarra line calling at Hurstville, Wollongong, Kiama, Gerringong, Berry and Bomaderry. It continued to operate after the line was electrified to Wollongong in January 1986 but was withdrawn in January 1991 with DEB set railcars connecting with V set electrics at Wollongong. Rolling stock It was originally formed of R set carriages painted green and cream. From 1949 until 1957 it was formed of air-conditioned HUB carriages. In March 1961, the 1100 class Budd diesel railcars took over. From the late 1970s they were joined by the 1200 class Tulloch diesel railcars. Following a derailment at Erskineville in February 1983, they began to have their engines removed and became locomotive hauled stock with a 44, 421 or 42 ...
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Riverina Express
The Riverina Express was a passenger train operated by the New South Wales Government Railways between Sydney, Griffith and Albury from September 1949 until November 1993. History The ''Riverina Express'' was introduced in September 1949 and operated during daylight hours travelling along the Main South line to both Griffith and Albury at various stages during its life.Report of the Commissioner for Railways for the year ended 30 June 1950 p. 64 in NSW Parliamentary Papers 1950-51-52 Vol 4 p. 568 "Annual Report 30 June 1950" Commissioner for Railways With the change to XPT operation in August 1982, all services ran to Albury. In November 1993, it was extended to Melbourne and renamed the ''Melbourne Daylight XPT''."Sydney-Melbourne Daylight XPT Commences This Month" ''Railway Digest'' December 1994 page 7 Rolling stock It was initially operated by a locomotive hauled, air-conditioned set of RUB set carriages. In February 1972 the RUB sets were replaced by ten 1200 class ''Tu ...
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Central West Express
The ''Central West Express'' is an Australian passenger train operating on the Main Western line in New South Wales from Sydney to Dubbo. History The ''Central West Express'' commenced operating in June 1941 operating on alternate days from Sydney to Dubbo and Parkes. In the early 1950s it received air-conditioned RUB sets and began to be hauled by 42 and 43 class diesel locomotives, although steam locomotives of the 36 and 38 classes would regularly haul it until July 1967. In September 1956 in a reorganisation of rolling stock, the ''Central West Express'' was cut back to operate as a day return service to Orange Orange most often refers to: *Orange (fruit), the fruit of the tree species '' Citrus'' × ''sinensis'' ** Orange blossom, its fragrant flower *Orange (colour), from the color of an orange, occurs between red and yellow in the visible spectrum * ... with the RUB sets replaced by a HUB set. From 1957, the service was hauled by 46 class electric locomotives ...
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Steam Locomotive Components
__NOTOC__ This article is a glossary of the main components found on a typical steam locomotive. The diagram, which is not to scale, is a composite of various designs in the late steam era. Some components shown are not the same, or are not present, on some locomotives – for example, on smaller or articulated types. Conversely, some locomotives have components not listed here. Details of the components See also * Glossary of boiler terms * Glossary of rail transport terms * Horsepower#Drawbar horsepower * Power classification * Tractive effort As used in mechanical engineering, the term tractive force can either refer to the total traction a vehicle exerts on a surface, or the amount of the total traction that is parallel to the direction of motion. In railway engineering, the term t ... References Further reading * * * External linksList of US–UK terminology– Railway Technical Website {{Steam engine configurations Glossaries of rail transport Ste ...
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Pounds Per Square Inch
The pound per square inch or, more accurately, pound-force per square inch (symbol: lbf/in2; abbreviation: psi) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch. In SI units, 1 psi is approximately equal to 6895 Pa. Pounds per square inch absolute (psia) is used to make it clear that the pressure is relative to a vacuum rather than the ambient atmospheric pressure. Since atmospheric pressure at sea level is around , this will be added to any pressure reading made in air at sea level. The converse is pounds per square inch gauge (psig), indicating that the pressure is relative to atmospheric pressure. For example, a bicycle tire pumped up to 65 psig in a local atmospheric pressure at sea level (14.7 psi) will have a pressure of 79.7 psia (14.7 psi + 65 psi). When gauge pressure is referenced to something other than ambient atmospheric pressure, then the u ...
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Streamliner
A streamliner is a vehicle incorporating wikt:streamline, streamlining in a shape providing reduced air resistance. The term is applied to high-speed railway trainsets of the 1930s to 1950s, and to their successor "High-speed rail, bullet trains". Less commonly, the term is applied to fully Bicycle fairing, faired upright and recumbent bicycles. As part of the Streamline Moderne trend, the term was applied to passenger cars, trucks, and other types of light-, medium-, or heavy-duty vehicles, but now vehicle streamlining is so prevalent that it is not an outstanding characteristic. In Land speed record, land speed racing, it is a term applied to the long, slender, custom built, high-speed vehicles with enclosed wheels. Trains Before World War II Europe The first high-speed streamliner in Germany was the "Schienenzeppelin", an experimental propeller driven single car, built in 1930. On 21 June 1931, the car set a speed record of on a run between Berlin and Hamburg. In ...
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Great Depression
The Great Depression (19291939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in the United States. The economic contagion began around September and led to the Wall Street stock market crash of October 24 (Black Thursday). It was the longest, deepest, and most widespread depression of the 20th century. Between 1929 and 1932, worldwide gross domestic product (GDP) fell by an estimated 15%. By comparison, worldwide GDP fell by less than 1% from 2008 to 2009 during the Great Recession. Some economies started to recover by the mid-1930s. However, in many countries, the negative effects of the Great Depression lasted until the beginning of World War II. Devastating effects were seen in both rich and poor countries with falling personal income, prices, tax revenues, and profits. International trade fell by more than 50%, unemployment in the U.S. rose to 23% and ...
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World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing military alliances: the Allies and the Axis powers. World War II was a total war that directly involved more than 100 million personnel from more than 30 countries. The major participants in the war threw their entire economic, industrial, and scientific capabilities behind the war effort, blurring the distinction between civilian and military resources. Aircraft played a major role in the conflict, enabling the strategic bombing of population centres and deploying the only two nuclear weapons ever used in war. World War II was by far the deadliest conflict in human history; it resulted in 70 to 85 million fatalities, mostly among civilians. Tens of millions died due to genocides (including the Holocaust), starvation, ma ...
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Trailing Truck
On a steam locomotive, a trailing wheel or trailing axle is generally an unpowered wheel or axle ( wheelset) located behind the driving wheels. The axle of the trailing wheels is usually located in a trailing truck. On some large locomotives, a booster engine was mounted on the trailing truck to provide extra tractive effort when starting a heavy train and at low speeds on gradients. Trailing wheels were used in some early locomotives but fell out of favor for a time during the latter 19th century. As demand for more powerful locomotives increased, trailing wheels began to be used to support the crew cab and rear firebox area. Trailing wheels first appeared on American locomotives between 1890 and 1895, but their axle worked in rigid pedestals. It enabled boilers to be lowered, since the top of the main frames was dropped down behind the driving wheels and under the firebox. The firebox could also be longer and wider, increasing the heating surface area and steam generation c ...
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