Class 3 (other)
Class 3 may refer to: * BR Standard Class 3 2-6-0, British steam locomotive * BR Standard Class 3 2-6-2T, British steam locomotive * Classes of U.S. Senators * L&YR Class 3, British 4-4-0 steam locomotive * SCORE Class 3, off-road racing trucks * The third class in terms of hiking difficulty in the Yosemite Decimal System * A class in US truck classification * Class 3, in the electrical Appliance classes * A contribution class in the National Insurance system in the UK See also * Class III (other) * Class 03 (other) * NSB El 3, Norwegian electric locomotive * NSB Di 3 NSB Di 3 is a class of 35 diesel-electric locomotives built by NOHAB NOHAB (Nydqvist & Holm AB) was a manufacturing company based in the city of Trollhättan, Sweden. History The company was founded by Antenor Nydqvist, Johan Magnus Lidstrà ...

BR Standard Class 3 2-6-0
The BR Standard Class 3 2-6-0 was a class of mixed traffic steam locomotive designed by Robert Riddles for British Railways. It was essentially a hybrid design, the chassis being closely based on and sharing a number of parts with the LMS Ivatt Class 4, and having a boiler derived from a GWR No.2 boiler as fitted to the GWR Large Prairie 2-6-2T and 5600 Class 0-6-2T tank engines. Design details The design and construction took place at the ex-Great Western Railway Swindon Works, along with the 2-6-2 tank engine version of the class, though some details were designed at Brighton, Derby and Doncaster. Although the boiler shared flanged plates with the GWR No.2 boiler the barrel was shortened by  inches and a dome added. Strangely the class did not share the same design of wheels as the Doncaster-designed BR Standard Class 4 2-6-0, however both shared the driving wheels and the same piston stroke, and hence crank-pin throw. In common with a number of the other BR Standard ...
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BR Standard Class 3 2-6-2T
The BR Standard Class 3 2-6-2T was a class of steam locomotive designed by Robert Riddles for British Railways. It was essentially a hybrid design, the chassis being closely based on and sharing a number of parts with the LMS Ivatt Class 4, and having a boiler derived from a GWR No.2 boiler as fitted to the GWR Large Prairie 2-6-2T and 5600 Class 0-6-2T tank engines. Design details The design and construction took place at the ex-GWR Swindon Works, along with the 2-6-0 tender engine version of the class. Although the boiler shared flanged plates with the GWR No.2 boiler the barrel was shortened by  inches and a dome added. Strangely they did not share the same design of wheels as the Doncaster-designed BR Standard Class 4 2-6-0 (76XXX), which also had driving wheels and the same piston stroke, and hence crank-pin throw. In common with a number of the other BR Standard Classes, the chassis design used a number of LMS-designed components including Brake Hanger Brack ...
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Classes Of U
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 * ''Clas ...
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L&YR Class 3
The L&YR Class 3 was a class of 4-4-0 steam locomotives of the Lancashire and Yorkshire Railway introduced in 1891 with forty being built. George Hughes rebuilt six locomotives with superheaters between 1908 and 1909, they were later designated L&YR Class 4. All passed to the London, Midland and Scottish Railway at the grouping in 1923 but were withdrawn by 1930. Design Origins The design originated with a William Barton Wright's 4-4-0 of 1880 with driving wheels of and boiler pressure of . Aspinall then produced a modified version with 6ft wheels which was the basis for the class 3. Class 3 John Aspinall succeeded Barton Wright in 1886. He initially order more locomotives of Barton's Wright's design. but determined a driving wheels of and boiler pressure increased to should give increased speed for the same tractive effort. Class 4 Six locomotives were rebuilt with superheaters by George Hughes between 1908 and 1909. They became L&YR Class 4 in the Hughes clas ...
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SCORE Class 3
SCORE Class 3 is production short wheelbase 4x4 class that competes in the SCORE off-road race series races including the Baja 1000, Baja 500, San Felipe 250, Baja Sur 500 and the SCORE Desert Challenge. Vehicle description Vehicles must be a four-wheel drive vehicle capable of being driven through all four wheels. Vehicles are typically Jeep, Ford Bronco, Kia Sportage or Chevrolet Trailblazer The Chevrolet Trailblazer is an automobile nameplate used by General Motors for its Chevrolet brand since 1999 for several SUV models: * TrailBlazer, a name of appearance package for the Chevrolet S-10 Blazer used between 1999 and 2002 * Chevro .... No pickup trucks are allowed in this class. Minimum vehicle weight is 3500 lbs. References *SCORE International (2011). "2011-2015 Off-Road Racing Rules and Regulations". External linksOfficial SCORE International website
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Yosemite Decimal System
The Yosemite Decimal System (YDS) is a three-part system used for rating the difficulty of walks, hikes, and climbs, primarily used by mountaineers in the United States and Canada. It was first devised by members of the Sierra Club in Southern California in the 1950s as a refinement of earlier systems, particularly those developed in Yosemite Valley, and quickly spread throughout North America. Description The class 5 portion of the class scale is primarily a rock climbing classification system, while classes 1–2 are used mainly in hiking and trail running. Class 3 describes easy and moderate climbing (i.e. scrambling), with varying amounts of exposure (length of a possible fall). Class 4 is an "in-between" rating that describes a very exposed scramble, corresponding roughly to the IFAS classification of PD+. Climbers, specifically those involved with technical class 5 climbing, often abbreviate "class 3" and "class 4" to "3rd" and "4th" respectively. Originally the system was ...
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Truck Classification
Truck classifications are typically based upon the maximum loaded weight of the truck, typically using the gross vehicle weight rating (GVWR) and sometimes also the gross trailer weight rating (GTWR), and can vary among jurisdictions. United States In the United States, commercial truck classification is determined based on the vehicle's gross vehicle weight rating (GVWR). The classes are numbered 1 through 8. Trucks are also classified more broadly by the Federal Highway Administration (FHWA), which groups classes 1 and 2 as ''light duty'', 3 through 6 as ''medium duty'', and 7 and 8 as ''heavy duty''. The Environmental Protection Agency (EPA) has a separate system of emissions classifications for trucks. The United States Census Bureau also assigned classifications in its now-discontinued Vehicle Inventory and Use Survey (VIUS) (formerly Truck Inventory and Use Survey (TIUS)). United States federal law requires drivers to have a commercial driver's license (CDL) to operate h ...
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Appliance Classes
Appliance classes (also known as protection classes) specify measures to prevent dangerous contact voltages on unenergized parts, such as the metallic casing, of an electronic device. In the electrical appliance manufacturing industry, the following appliance classes are defined in IEC 61140 and used to differentiate between the protective-earth connection requirements of devices. Class 0 These appliances have no protective-earth connection and feature only a single level of insulation between live parts and exposed metalwork. If permitted at all, Class 0 items are intended for use in dry areas only. A single fault could cause an electric shock or other dangerous occurrence, without triggering the automatic operation of any fuse or circuit breaker. Sales of such items have been prohibited in much of the world for safety reasons, for example in the UK by Section 8 of The Low Voltage Electrical Equipment (Safety) Regulations 1989and New Zealand by thElectricity Act A typical exampl ...
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National Insurance
National Insurance (NI) is a fundamental component of the welfare state in the United Kingdom. It acts as a form of social security, since payment of NI contributions establishes entitlement to certain state benefits for workers and their families. Introduced by the National Insurance Act 1911 and expanded by the Labour government in 1948, the system has been subjected to numerous amendments in succeeding years. Initially, it was a contributory form of insurance against illness and unemployment, and eventually provided retirement pensions and other benefits. Currently, workers pay contributions from the age of 16 years, until the age they become eligible for the State pension. Contributions are due from employed people earning at or above a threshold called the Lower Earnings Limit, the value of which is reviewed each year. Self-employed people contribute partly through a fixed weekly or monthly payment and partly on a percentage of net profits above a threshold, which is revi ...
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Class III (other)
Class III may refer to: *Class III antiarrhythmic *Class III β-tubulin * Class III electrical appliance * Class III gaming * Class III NFA firearm * Class III PI 3-kinase *Class III railroad *Luminosity class III (giant) star in the Yerkes or MK-system * Pesticide Toxicity Class Class III **World Health Organization **United States Environmental Protection Agency ** EU See also *Class 3 (other) Class 3 may refer to: * BR Standard Class 3 2-6-0, British steam locomotive * BR Standard Class 3 2-6-2T, British steam locomotive * Classes of U.S. Senators * L&YR Class 3, British 4-4-0 steam locomotive * SCORE Class 3, off-road racing trucks ...

Class 03 (other)
Class 03 may refer to: *British Rail Class 03, a class of post-war, British diesel-mechanical shunter, *DRG Class 03, a class of inter-war, German standard steam locomotive ('' Einheitslokomotive'') for express train duties on lighter main lines. * DRG Class 03.10, a streamlined, 3-cylinder development of the above DRG Class 03 built at the outset of World War II. See also *Class 3 (other) Class 3 may refer to: * BR Standard Class 3 2-6-0, British steam locomotive * BR Standard Class 3 2-6-2T, British steam locomotive * Classes of U.S. Senators * L&YR Class 3, British 4-4-0 steam locomotive * SCORE Class 3, off-road racing trucks ...

NSB El 3
NSB El 3 was an electric locomotive used by the Norwegian State Railways (NSB) to transport iron ore on the Ofoten Line. Five twin-locomotive sets were in service from 1925 to 1967. History The Swedish part of the ore line, the Iron Ore Line, was electrified in 1915 but Norway kept using steam locomotives until the Norwegian electrification in 1923. As Norwegian traction the El 3 was chosen along with five triple-engine El 4 units. Eight El 3 were built with delivery on August 9, 1925, two more on October 19, 1929. The El 3 and El 4 had about the same characteristics and used for the same purpose and ordered simultaneously; choosing two models like this is atypical for railway companies because of higher maintenance costs. By 1922 SJ had placed an order on the new Of-locomotives, yet NSB chose to base the El 3 on the older Oe. Build by ASEA, they were equipped with quill drive and regenerative braking; the latter only caused problems though, excessively increasing the curre ...
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