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Plymouth CR-8 Locomotives
The Plymouth CR-8 was a class of 4-axle B'B' centre cab locomotive, built by Plymouth Locomotive Works, USA Several locomotives of type CR-8 have been used in the USA on industrial sites. Ten units (CR-8b) were briefly operated in Thailand in the mid-1960s. During the Vietnam War the units were operated by the US Army in South Vietnam, and after the end of the war became the property of the Vietnam Railways as class D10H. A second class of Chinese-built locomotives of type DFH21 have operated as the type ''D10H'' on the railways of Vietnam from around 1980 onwards. History and design The general design of a CR-8 locomotive was available in weights from with installed power ranging from , using twin engines with hydraulic transmission via a cardan shaft final drive, in gauges from to . The locomotives used in Vietnam were built by the Plymouth Locomotive Works, USA in the 1960s using two General Motors 12V71 two stroke V12 engines. They were in gauge. The locomotives were ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Motors
The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and was the largest in the world for 77 years before losing the top spot to Toyota in 2008. General Motors operates manufacturing plants in eight countries. Its four core automobile brands are Chevrolet, Buick, GMC (automobile), GMC, and Cadillac. It also holds interests in Chinese brands Wuling Motors and Baojun as well as DMAX (engines), DMAX via joint ventures. Additionally, GM also owns the BrightDrop delivery vehicle manufacturer, GM Defense, a namesake Defense vehicles division which produces military vehicles for the United States government and military; the vehicle safety, security, and information services provider OnStar; the auto parts company ACDelco, a GM Financial, namesake financial lending service; and majority ownership in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Aviation And Missile Command
The United States Army Aviation and Missile Command (AMCOM) develops, acquires, fields and sustains aviation, missile and unmanned aerial vehicles. AMCOM is primarily responsible for lifecycle management of army missile, helicopter, unmanned ground vehicle and unmanned aerial vehicle weapon system. The central part of AMCOM's mission involves ensuring readiness through acquisition and sustainment support for aviation systems, missile systems, and test, measurement, and diagnostic equipment (TMDE) throughout their life cycle. The command is headquartered at Redstone Arsenal in Huntsville, Alabama, has a 2019 "budget of more $3.7 billion, and a global workforce of more than 15,000 military and civilian employees". AMCOM works closely with The U.S. Army Combat Capabilities Development Command Aviation & Missile Center (AvMC) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metre Gauge Diesel Locomotives
The metre (British spelling) or meter (American spelling; see spelling differences) (from the French unit , from the Greek noun , "measure"), symbol m, is the primary unit of length in the International System of Units (SI), though its prefixed forms are also used relatively frequently. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. The current definition was adopted in 1983 and modified slightly in 2002 to clarify that the metre is a measure of proper length. From 1983 until 2019, the metre was formally defined as the length of the path travelled by light in a vacuum in of a second. After the 2019 redefiniti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Locomotives Of Vietnam
Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engine Arts and entertainment * Diesel (band), a Dutch pop/rock group * ''Diesel'' (1942 film), a German film about Rudolf Diesel * Diesel (2022 film), an Indian Tamil language thriller film * Diesel (game engine), a computer gaming technology * Diesel, a former name of Brazilian rock band Udora People Surname * Nathanael Diesel (1692–1745), Danish composer, violinist and lutenist * Vin Diesel (Mark Sinclair, born 1967), American actor, producer and director * Rudolf Diesel (1858-1913), German inventor and mechanical engineer Nickname or ring name * Diesel (musician) (Mark Lizotte, born 1966), American-Australian rock singer-songwriter * Kevin Nash (born 1959) ring name and gimmick for American professional wrestler Kevin Nash while p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Equipment Of The Vietnam War
A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct military uniform. It may consist of one or more military branches such as an army, navy, air force, space force, marines, or coast guard. The main task of the military is usually defined as defence of the state and its interests against external armed threats. In broad usage, the terms ''armed forces'' and ''military'' are often treated as synonymous, although in technical usage a distinction is sometimes made in which a country's armed forces may include both its military and other paramilitary forces. There are various forms of irregular military forces, not belonging to a recognized state; though they share many attributes with regular military forces, they are less often referred to as simply ''military''. A nation's military may f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel-hydraulic Locomotives
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jones And Laughlin Steel Company
The Jones and Laughlin Steel Corporation began as the American Iron Company, founded in 1852 by Bernard Lauth and Benjamin Franklin Jones, a few miles (c 4 km) south of Pittsburgh along the Monongahela River. Lauth's interest was bought in 1854 by James Laughlin. The first firm to bear the name of Jones and Laughlin was organized in 1861 and headquartered at Third & Ross in downtown Pittsburgh. History Originally producing only iron, the enterprise began the production of steel in 1886. Over the ensuing 60 years, the company expanded its facilities and its operations along both sides of the Monongahela River on the South Side of Pittsburgh and along the Ohio River at Aliquippa. The Hot Metal Bridge across the Monongahela River was built to connect Eliza blast furnaces (making pig iron) on the Hazelwood side of the river with the open hearth furnaces (making steel) on the south side of the river. In 1905, a new plant was begun at Aliquippa, Pennsylvania. The company als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bethlehem Steel
The Bethlehem Steel Corporation was an American steelmaking company headquartered in Bethlehem, Pennsylvania. For most of the 20th century, it was one of the world's largest steel producing and shipbuilding companies. At the height of its success and productivity, the company was a symbol of American manufacturing leadership in the world, and its decline and ultimate liquidation in the late 20th century is similarly cited as an example of America's diminished manufacturing leadership. From its founding in 1857 through its 2003 dissolution, Bethlehem Steel's headquarters and primary steel mill manufacturing facilities were based in Bethlehem, Pennsylvania in the Lehigh Valley region of the United States. The company's steel was used in the construction of many of America's largest and most famed structures. Among major buildings, Bethlehem produced steel for 28 Liberty Street, the Chrysler Building, the Empire State Building, Madison Square Garden, Rockefeller Center, and the Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Massachusetts Bay Transportation Authority
The Massachusetts Bay Transportation Authority (abbreviated MBTA and known colloquially as "the T") is the public agency responsible for operating most public transportation services in Greater Boston, Massachusetts. The MBTA transit network includes the MBTA subway with three metro lines (the Blue, Orange, and Red lines), two light rail lines (the Green and Ashmont–Mattapan lines), and a five-line bus rapid transit system (the Silver Line); MBTA bus local and express service; the twelve-line MBTA Commuter Rail system, and several ferry routes. In , the system had a ridership of , or about per weekday as of , of which the rapid transit lines averaged and the light rail lines , making it the fourth-busiest rapid transit system and the third-busiest light rail system in the United States. As of , average weekday ridership of the commuter rail system was , making it the sixth-busiest commuter rail system in the U.S. The MBTA is the successor of several previous public a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vietnam War
The Vietnam War (also known by #Names, other names) was a conflict in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. It was the second of the Indochina Wars and was officially fought between North Vietnam and South Vietnam. The north was supported by the Soviet Union, China, and other communist states, while the south was United States in the Vietnam War, supported by the United States and other anti-communism, anti-communist Free World Military Forces, allies. The war is widely considered to be a Cold War-era proxy war. It lasted almost 20 years, with direct U.S. involvement ending in 1973. The conflict also spilled over into neighboring states, exacerbating the Laotian Civil War and the Cambodian Civil War, which ended with all three countries becoming communist states by 1975. After the French 1954 Geneva Conference, military withdrawal from Indochina in 1954 – following their defeat in the First Indochina War – the Viet Minh to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Role Of The United States In The Vietnam War
A role (also rôle or social role) is a set of connected behaviors, rights, obligations, beliefs, and norms as conceptualized by people in a social situation. It is an expected or free or continuously changing behavior and may have a given individual social status or social position. It is vital to both functionalist and interactionist understandings of society. Social role theory posits the following about social behavior: # The division of labour in society takes the form of the interaction among heterogeneous specialized positions, we call roles. # Social roles included appropriate and permitted forms of behavior and actions that recur in a group, guided by social norms, which are commonly known and hence determine the expectations for appropriate behavior in these roles, which further explains the place of a person in the society. # Roles are occupied by individuals, who are called actors. #When individuals approve of a social role (i.e., they consider the role legitimate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Vietnam
South Vietnam, officially the Republic of Vietnam ( vi, Việt Nam Cộng hòa), was a state in Southeast Asia that existed from 1955 to 1975, the period when the southern portion of Vietnam was a member of the Western Bloc during part of the Cold War after the 1954 division of Vietnam. It first received international recognition in 1949 as the State of Vietnam within the French Union, with its capital at Saigon (renamed to Ho Chi Minh City in 1976), before becoming a republic in 1955. South Vietnam was bordered by North Vietnam to the north, Laos to the northwest, Cambodia to the southwest, and Thailand across the Gulf of Thailand to the southwest. Its sovereignty was recognized by the United States and 87 other nations, though it failed to gain admission into the United Nations as a result of a Soviet veto in 1957. It was succeeded by the Republic of South Vietnam in 1975. The end of the Second World War saw anti-Japanese Việt Minh guerrilla forces, led by communist fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
