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4-8-8-2
Under the Whyte notation for the classification of steam locomotives, a 4-8-8-2 is a locomotive with four leading wheels, two sets of eight driving wheels, and a two-wheel trailing truck. Other equivalent classifications are: UIC classification: 2DD1 (also known as German classification and Italian classification) French classification: 240+041 Turkish classification: 46+45 Swiss classification: 4/6+4/5 The equivalent UIC classification is refined to (2'D)D1' for simple articulated locomotives. A locomotive of that length must be an articulated locomotive; meaning all have a joint between the first and second groups of driving wheels. All examples of this type are cab forwards. Normally, the leading truck sits under the smokebox and the trailing truck under the firebox. On a cab-forward, the leading truck supports the firebox and the trailing truck and smokebox are at the rear next to the tender. A 4-8-8-2 is effectively a 2-8-8-4 that always runs in reverse. Southe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Pacific 4294
Southern Pacific 4294 is a class " AC-12" 4-8-8-2 cab-forward–type steam locomotive that was owned and operated by the Southern Pacific Railroad (SP). It was built by the Baldwin Locomotive Works in March 1944 and was used hauling SP's trains over the Sierra Nevada, often working on Donner Pass in California. Today it is preserved at the California State Railroad Museum (CSRM) in Sacramento, California. History No. 4294 was the last of 20 Southern Pacific class AC-12 4-8-8-2 cab-forward locomotives in a larger series of 256 Southern Pacific articulated cab-forwards starting with class AC-1. An articulated locomotive is essentially two locomotives sharing a fire box, boiler and crew. The front locomotive has its cranks quartered 90 degrees apart. The front and rear sets of drive axles are free to roll out of phase with respect to each other. If unloaded, the locomotive has a vertical oscillation, near 50 mph, that can lift the tires above the rails. Its most disti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cab Forward
The term cab forward refers to various Rail transport, rail and road vehicle designs that place the driver's compartment substantially farther towards the front than is common practice. Rail locomotives In steam locomotive design, a cab-forward design will typically have the driver's compartment or cab (locomotive), cab placed forward of the boiler at the very front of the engine. On a coal-fired locomotive, the fireman's station remains on the footplate behind the Firebox (steam engine), firebox so as to be next to the tender (rail), tender. On an Oil burner (engine), oil-fired locomotive, the fireman's station could be (and normally is) in the forward cab. This type of design was adapted for a few locomotives throughout Europe in the first half of the 20th century, often in conjunction with an enclosed body design and/or Streamliner, streamlining. Visibility is greatly improved when the cab is in this position, and in tunnels it does not fill with fumes from the chimney. How ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Pacific Railroad
The Southern Pacific (or Espee from the railroad initials) was an American Railroad classes#Class I, Class I Rail transport, railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the names Southern Pacific Railroad, Southern Pacific Company and Southern Pacific Transportation Company. The original Southern Pacific began in 1865 as a land holding company. The last incarnation of the Southern Pacific, the Southern Pacific Transportation Company, was founded in 1969 and assumed control of the Southern Pacific system. The Southern Pacific Transportation Company was acquired in 1996 by the Union Pacific Corporation and merged with their Union Pacific Railroad. The Southern Pacific legacy founded hospitals in San Francisco, Tucson, Arizona, Tucson, and Houston. In the 1970s, it also founded a telecommunications network with a state-of-the-art microwave and fiber optic backbone. This telec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whyte Notation
The Whyte notation is a classification method for steam locomotives, and some internal combustion locomotives and electric locomotives, by wheel arrangement. It was devised by Frederick Methvan Whyte, and came into use in the early twentieth century following a December 1900 editorial in ''American Engineer and Railroad Journal''. The notation was adopted and remains in use in North America and the United Kingdom to describe the wheel arrangements of steam locomotives, but for modern locomotives, multiple units and trams it has been supplanted by the UIC system in Europe and by the AAR system (essentially a simplification of the UIC system) in North America. However, geared steam locomotives do not use the notation. They are classified by their model and their number of trucks. Structure of the system Basic form The notation in its basic form counts the number of leading wheels, then the number of driving wheels, and finally the number of trailing wheels, numbers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
California State Railroad Museum
The California State Railroad Museum is a museum in the California State Parks system that interprets the role of railroads in the Western U.S. It is located in Old Sacramento State Historic Park at 111 I Street, Sacramento, California. Features The museum features 21 restored locomotives and railroad cars, some dating back to 1862. The "Sierra Scene" shows a large scale mockup of a construction scene high in the Sierra Nevada representing Donner Pass , featuring the locomotive '' Gov. Stanford''. Other exhibits show how the influence of railroads changed American society, influencing travel, commerce and daily life, as well as the lives of railroaders and the diversity of people who work on railroads. Changing exhibits featuring photography, ephemera, and artifacts from the museum's collection, add depth and incidental information to the overall story of railroad history. The museum has an extensive educational program for elementary students from across the region to help th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baldwin Locomotive Works
The Baldwin Locomotive Works (BLW) was an American manufacturer of railway locomotives from 1825 to 1951. Originally located in Philadelphia, Pennsylvania, it moved to nearby Eddystone, Pennsylvania, Eddystone in the early 20th century. The company was for decades the world's largest producer of steam locomotives, but struggled to compete when demand switched to diesel locomotives. Baldwin produced the last of its 70,000-plus locomotives in 1951, before merging with the Lima Locomotive Works, Lima-Hamilton Corporation on September 11, 1951, to form the Baldwin-Lima-Hamilton Corporation. The company has no relation to the E.M. Baldwin and Sons of New South Wales, Australia, a builder of small diesel locomotives for sugar cane railroads. History: 19th century Beginning Matthias W. Baldwin, the founder, was a jeweler and whitesmith, who, in 1825, formed a partnership with machinist David H. Mason, and began making bookbinders' tools and cylinders for calico printing. Baldwin t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2-8-8-4
A 2-8-8-4 steam locomotive, under the Whyte notation, has two leading wheels, two sets of eight driving wheels, and a four-wheel trailing truck. The type was generally named the ''Yellowstone'', a name given it by the first owner, the Northern Pacific Railway, whose lines ran near Yellowstone National Park. Seventy-two Yellowstone-type locomotives were built for four U.S. railroads. Other equivalent classifications are: *UIC classification: 1DD2 (also known as UIC classification of locomotive axle arrangements, German classification and Italian classification) *French classification: 140+042 *Turkish classification: 45+46 *Swiss classification: 4/5+4/6 *:ru:Осевая формула паровоза#Русский, Russian classification: 1-4-0+0-4-2 The equivalent UIC classification is, refined for simple articulated locomotives, (1′D)D2′. A locomotive of this length must be an articulated locomotive. All Yellowstones had fairly small drivers of . (For greater speeds, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Pacific 4294, A Cab-forward Steam Locomotive
Southern may refer to: Businesses * China Southern Airlines, airline based in Guangzhou, China * Southern Airways, defunct US airline * Southern Air, air cargo transportation company based in Norwalk, Connecticut, US * Southern Airways Express, Memphis-based passenger air transportation company, serving eight cities in the US * Southern Company, US electricity corporation * Southern Music (now Peermusic), US record label * Southern Railway (other), various railways * Southern Records, independent British record label * Southern Studios, recording studio in London, England * Southern Television, defunct UK television company * Southern (Govia Thameslink Railway), brand used for some train services in Southern England Media * 88.3 Southern FM, a non-commercial community radio station based in Melbourne, Australia * Heart Sussex, a radio station in Sussex, England, previously known as "Southern FM" * ''Nanfang Daily'' or ''Southern Daily'', the official Communist Party newsp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sacramento, California
Sacramento ( or ; ; ) is the List of capitals in the United States, capital city of the U.S. state of California and the county seat, seat of Sacramento County, California, Sacramento County. Located at the confluence of the Sacramento River, Sacramento and American Rivers in Northern California's Sacramento Valley, Sacramento's 2020 population of 524,943 makes it the fourth-most populous city in Northern California, List of largest California cities by population, the sixth-most populous in the state, the List of United States cities by population, ninth-most populous state capital, and the List of United States cities by population, 35th most populous city in the United States. Sacramento is the seat of the California Legislature and the governor of California. Sacramento is also the cultural and economic core of the Sacramento metropolitan area, Greater Sacramento area, which at the 2020 United States census, 2020 census had a population of 2,680,831, the fourth-largest S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallet (locomotive)
A Mallet locomotive is a type of compound articulated steam locomotive, invented by the Swiss engineer Anatole Mallet (1837–1919). The front of the locomotive is articulated on a bogie. The compound steam system fed steam at boiler pressure to high-pressure cylinders driving the rear set of driving wheels (rigidly connected to the boiler). The exhaust steam from these cylinders was fed into a low-pressure receiver and was then sent to low-pressure cylinders that powered the driving wheels on the swiveling bogie towards the front of locomotive. Compounding Steam under pressure is converted into mechanical energy more efficiently if it is used in a compound engine; in such an engine, steam from a boiler is used in high-pressure (HP) cylinders and then under reduced pressure in a second set of cylinders. The lower-pressure steam occupies a larger volume and the low-pressure (LP) cylinders are larger than the high-pressure cylinders. A third stage (triple expansion) may be e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow Shed
Avalanche control or avalanche defense activities reduce the hazard avalanches pose to human life, activity, and property."Mitigation and Land Use - Avalanches" , Colorado Geological Survey Avalanche control begins with a risk assessment conducted by surveying for potential avalanche terrain by identifying geographic features such as vegetation patterns, drainages, and seasonal snow distribution that are indicative of avalanches. From the identified avalanche risks, the hazard is assessed by identifying threatened human geographic features such as roads, ski-hills, and buildings. Avalanche control programs address the avalanche hazard by formulating prevention and mitigation plans, which are then executed during the winter season. The prevention and mitigation plans combine extensive snow pack observation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swiss Classification
For more than a century, the Swiss locomotive, multiple unit, motor coach and railcar classification system, in either its original or updated forms, has been used to name and classify the rolling stock operated on the railways of Switzerland. It started out as a uniform system for the classification and naming of all rolling stock, powered and unpowered, but had been replaced and amended by the UIC classification of goods wagons. Overview and evolution The Swiss classification system was created by the Swiss federal railways department, and applied originally to the rolling stock of private railways, operating under government concessions. In 1902, when the Swiss Federal Railways was founded as a government railway, that new railway also became bound by the system. Unlike the Whyte notation and AAR wheel arrangement, AAR system, both of which are used to classify wheel arrangements, and the UIC classification of locomotive axle arrangements, the Swiss system, in both its or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
