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Bo-Bo Locomotives
B-B and Bo-Bo are the Association of American Railroads (AAR) and British classifications of wheel arrangement for railway locomotives with four axles in two individual bogies. They are equivalent to the B′B′ and Bo′Bo′ classifications in the UIC system. The arrangement of two, two-axled, bogies is a common wheel arrangement for modern electric and diesel locomotives. Bo-Bo Bo-Bo is the UIC indication of a wheel arrangement for railway vehicles with four axles in two individual bogies, all driven by their own traction motors. It is a common wheel arrangement for modern electric and diesel-electric locomotives, as well as power cars in electric multiple units. Most early electric locomotives shared commonalities with the steam engines of their time. These features included side rods and frame mounted driving axles with leading and trailing axles. The long rigid wheelbase and the leading and trailing axles reduced cornering stability and increased weight. The Bo-B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AAR Wheel Arrangement
The AAR wheel arrangement system is a method of classifying locomotive (or unit) wheel arrangements that was developed by the Association of American Railroads. Essentially a simplification of the European UIC classification, it is widely used in North America to describe diesel and electric locomotives (including third-rail electric locomotives). It is not used for steam locomotives, which use the Whyte notation instead. The AAR system counts axles instead of wheels. Letters refer to powered axles, and numbers to unpowered (or idler) axles. "A" refers to one powered axle, "B" to two powered axles in a row, "C" to three powered axles in a row, and "D" to four powered axles in a row. "1" refers to one idler axle, and "2" to two idler axles in a row. A dash ("–") separates trucks or wheel assemblies. A plus sign ("+") refers to articulation, either by connecting bogies with span bolsters or by connecting individual locomotives via solid drawbars instead of couplers. 1A-A1 "1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
JR Hokkaido ED76 551
JR, J. R. or Jr. may refer to: * Jr. or Junior (suffix), a name suffix Arts and entertainment * ''J.R.'' (album), an album by Jim Bob * '' J R'', a 1975 novel written by William Gaddis * "Jr.", a song by Codeine on the album '' Barely Real'' * J. R. Ewing, a television character from ''Dallas'' * JR Chandler, aka Adam Chandler Jr, a television character from ''All My Children'' * '' Jornal da Record'', a Brazilian news program on RecordTV Businesses and organizations * Aero California, defunct Mexican airline by IATA code * Japan Railways Group or the JR Group, the main operators of the Japanese railway network * Jember railway station * John Radcliffe Hospital * Joy Air, Chinese airline by IATA code People In arts and entertainment * JR (artist) (born 1983), French artist * J.R. (musician) (born 1979), American Christian musician and producer * JR (rapper) (born 1987), South African rapper and entrepreneur * ''J. R.'' a pen-name of writer John Ruskin * ''Jr.'', stage name of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardan Shaft
A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power (physics), power and torque and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to allow for relative movement between them. As torque carriers, drive shafts are subject to torsion (mechanics), torsion and shear stress, equivalent to the difference between the input torque and the load. They must therefore be strong enough to bear the stress, while avoiding too much additional weight as that would in turn increase their inertia. To allow for variations in the alignment and distance between the driving and driven components, drive shafts frequently incorporate one or more universal joints, jaw couplings, or rag joints, and sometimes a Rotating spline, splined joint or prismatic joint. History The term ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel-hydraulic 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 quick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crowcombe 832 Light Engine To Bishops Lydeard
Crowcombe is a village and civil parish under the Quantock Hills in Somerset, England, southeast of Watchet, and from Taunton. The village has a population of 489. The parish covers the hamlets of Crowcombe Heathfield, Flaxpool, Halsway, Lawford and Triscombe. The village is on the route of the Samaritans Way South West. History The name Triscombe is believed to derive from the Old English words and . The first documentary evidence of the village is by Æthelwulf of Wessex in 854, where it was spelt 'Cerawicombe'. At that time the manor belonged to Glastonbury Abbey. Later Gytha Thorkelsdóttir, wife of Earl Godwin, gave it to the monks of Winchester to make amends for her husband's "treacherous abuses of divers monastic institutions". The Domesday Book of 1086 lists the village as 'Crawcombe', which is believed to come from the Old English words ''craw'' and ''cumb''. The parish of Crowcombe was part of the Williton and Freemanners Hundred. The medieval cross of r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SS4 7185 20111102
SS4 may refer to: * SS-4 Sandal, a Soviet theatre ballistic missile * Ambrosini SS.4, an Italian fighter aircraft prototype * Pindad SS4, an Indonesian battle rifle in development * SS 4, an Italian state highway, linking Rome to the Adriatic sea * Super Select Super Select is the brand name of a four-wheel drive system produced by Mitsubishi Motors, used worldwide except for North America, where it was initially known as Active-Trac. It was first introduced in 1991 with the then-new second generation of ..., a four-wheel drive system produced by Mitsubishi * , a submarine of the United States Navy * Super Saiyan 4, a fictional transformation from the Dragon Ball series {{Letter-NumberCombDisambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indian Locomotive Class WAG-12
The Indian locomotive class WAG-12B is a class of 25 kV AC electric locomotives that was developed in 2017 by Alstom with technological collaboration with Indian Railways. The model name stands for broad gauge (W), Alternating Current (AC), Goods traffic (G) locomotive, 12000 hp (12). They entered trial service in 2019. A total of 268 WAG-12B have been built at Electric Locomotive Factory, Madhepura, Bihar, India. With a power output of 12,000 HP, the WAG 12 is twice as powerful as its immediate predecessor, WAG-9, and is among the most powerful freight locomotives in the world. The locomotive is being developed for deployment on the Dedicated Freight Corridors, where it will be used to haul freight trains weighing more than at speeds of to , essentially doubling the average speed of freight trains in the sector. History Origins The origins of WAG-12B can be traced back to 2006. When the Government of India approved the Dedicated Freight Corridor (DFC) project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railways HXD2
The HXD2 locomotives are a series of related locomotive classes built by CNR Datong Electric Locomotive and Alstom. The locomotives designs are based on the Alstom Prima electric locomotives, and are a product of a cooperation agreement signed between the two companies in 2004. All locomotives are intended for heavy freight work, including coal trains on the Datong Qinhuangdao line ( Daqin Railway). The original HXD2 locomotives are twin unit Bo′Bo′+Bo′Bo′ vehicles whereas the HXD2B and HXD2C versions are single unit Co′Co′ machines. At the time of their construction the HXD2 and HXD2B locomotives were amongst the most powerful locomotives in the world. The HXD2C is similarly specified to the HXD2B but of reduced power, and with increased localisation of components for lower cost. The HXD2 was originally described as the DJ4-6000 class. Variants of the type were produced for railways other than China Railway: in 2010 Belarus state railways ordered a HXD2 twin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prima (locomotive)
Prima is a family of railway diesel and electric locomotives built by Alstom. During the late 1990s, manufacture of the type had commenced; by 2008, Alstom had reportedly sold 1,750 Prima locomotives. In 2009, the second generation Prima II was launched. During 2013, the Prima H3 diesel/battery hybrid locomotive was launched. First generation During 1998, the French national railway operator, SNCF, placed a large order with train manufacturer Alstom for 120 electric locomotives, which was later on increased to 240, to perform both domestic and international freight services. The company decided to develop a new modular platform that would accommodate the requirements not only of the existing SNCF order, but to also comply with European interoperability standards, as well as a high degree of flexibility as to meet the divergent needs of different operators, potentially increasing the type's international appeal. In this manner, the SNCF order can be attributed with the extens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flexicoil Suspension
Flexicoil suspension is a type of secondary suspension for railway vehicles, typically having steel coil springs between the bogie trucks and chassis/frame of a passenger coach, goods freight wagon, or locomotive. Suspension systems using steel springs are more common than those with air springs, as steel springs are less costly to make, relatively wear resistant, and require less maintenance. History Flexicoil (though not known by this term) suspensions were fitted to locomotives in Spain, the Soviet Union and Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area ... as early as the 1930s. In Germany, Flexicoil suspensions were first used in the 1950s under high-speed electric locomotives, notably the DB Class 103. British Rail Between 1969 and 1971, British Rail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
