NZR OA Class
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NZR OA Class
The OA class is a solitary steam locomotive built by the Baldwin Locomotive Works for the Wellington and Manawatu Railway (WMR) in New Zealand. Ordered in 1894, it entered service in August of that year as No. 13 and was the first narrow gauge Vauclain compound in the world. In 1908, the WMR and its locomotive fleet were purchased by New Zealand Railways Department (NZR) and incorporated into the national rail network, and, although No. 13 bore a likeness to members of the O class, it was sufficiently different that it warranted separate classification. The designation of OA was created and it was numbered OA 457. It operated for another two decades until it was withdrawn in December 1929 in Auckland Auckland (pronounced ) ( mi, Tāmaki Makaurau) is a large metropolitan city in the North Island of New Zealand. The most populous urban area in the country and the fifth largest city in Oceania, Auckland has an urban population of about .... The locomotive was known ...
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2-8-0
Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, eight powered and coupled driving wheels on four axles, and no trailing wheels. In the United States and elsewhere, this wheel arrangement is commonly known as a Consolidation, after the Lehigh and Mahanoy Railroad’s ''Consolidation'', the name of the first 2-8-0.White, John H. Jr. (1968). ''A history of the American locomotive; its development: 1830-1880''. New York: Dover Publications, p. 65. The notation 2-8-0T indicates a tank locomotive of this wheel arrangement, the "T" suffix indicating a locomotive on which the water is carried in side-tanks mounted on the engine rather than in an attached tender. The Consolidation represented a notable advance in locomotive power. After 1875, it became "the most popular type of freight locomotive in the United States and was built in greater quantities than any other si ...
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Rail Transport In New Zealand
Rail transport in New Zealand is an integral part of New Zealand's transport network, with a nationwide network of of track linking most major cities in the North and South Islands, connected by inter-island rail and road ferries. Rail transport in New Zealand has a particular focus on bulk freight exports and imports, with 19 million net tonnes moved by rail annually, with 99.5% of New Zealand's exports and imports being transported through the country's seaports. Rail transport played an important role in the opening up and development of the hinterland outside of New Zealand's predominantly dispersed and coastal settlements. Starting with the Ferrymead Railway in 1863, most public railway lines were short, built by provincial governments and connected major centres to their nearest seaport (such as Christchurch and its port at Lyttelton Harbour). From the 1870s, the focus shifted to building a nationwide network linking major centres, especially during the Vogel Era of ...
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Railway Locomotives Introduced In 1894
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prepared flat surface, rail vehicles (rolling stock) are directionally guided by the tracks on which they run. Tracks usually consist of steel rails, installed on sleepers (ties) set in ballast, on which the rolling stock, usually fitted with metal wheels, moves. Other variations are also possible, such as "slab track", in which the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a rail transport system generally encounters lower frictional resistance than rubber-tyred road vehicles, so passenger and freight cars (carriages and wagons) can be coupled into longer trains. The operation is carried out by a railway company, providing transport between train stations or freight customer faciliti ...
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Scrapped Locomotives
Scrap consists of recyclable materials, usually metals, left over from product manufacturing and consumption, such as parts of vehicles, building supplies, and surplus materials. Unlike waste, scrap has monetary value, especially recovered metals, and non-metallic materials are also recovered for recycling. Once collected, the materials are sorted into types — typically metal scrap will be crushed, shredded, and sorted using mechanical processes. Scrap recycling is important for creating a more sustainable economy or creating a circular economy, using significantly less energy and having far less environmental impact than producing metal from ore. Metal recycling, especially of structural steel, ships, used manufactured goods, such as vehicles and white goods, is a major industrial activity with complex networks of wrecking yards, sorting facilities and recycling plants. Processing Scrap metal originates both in business and residential environments. Typically a "scrapper" ...
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Vauclain Compound Locomotives
The Vauclain compound was a type of compound steam locomotive that was briefly popular circa 1900. Developed at the Baldwin Locomotive Works, it featured two pistons moving in parallel, driving a common crosshead and controlled by a common valve gear using a single, complex piston valve. Advantages and disadvantages The claimed advantage for this arrangement, as with other compounding arrangements, was greater economy due to lower fuel and water consumption. In practice uneven forces at the crosshead produced excess wear, with increased maintenance costs thus offsetting any fuel economies. The integration of the compounding system into the smokebox saddle made conversion to conventional engines straightforward, so most Vauclain compounds were so converted and led normal lives thereafter. The only known operable example is Manitou and Pikes Peak Railway No. 4, which is preserved on-site along with the static display of its sister #5. Design The key to the Vauclain compound is its ...
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Baldwin Locomotives
Baldwin is a Germanic name, composed of the elements ''bald'' "bold" and ''win'' "friend". People * Baldwin (name) Places Canada * Baldwin, York Regional Municipality, Ontario * Baldwin, Ontario, in Sudbury District * Baldwin's Mills, Quebec United States * Baldwin County, Alabama * Baldwin, Florida * Baldwin, Georgia * Baldwin County, Georgia * Baldwin, Illinois * Baldwin, Iowa * Baldwin, Louisiana * Baldwin, Maine * Baldwin, Maryland * Baldwin, Michigan * Baldwyn, Mississippi * Baldwin, Chemung County, New York * Baldwin, Nassau County, New York ** Baldwin (LIRR station) * Baldwin, North Dakota * Baldwin, Pennsylvania * Baldwin, Wisconsin * Baldwin (town), Wisconsin Other places * Baldwin Street, in Dunedin, New Zealand, the world's steepest street * Baldwin Hills, neighborhood in Los Angeles, California * Montgomery, Powys, named in Welsh "Trefaldwyn", meaning "The Town of Baldwin" Companies * Baldwin Locomotive Works, one of the world's largest builders of ...
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Steam Locomotives Of New Zealand
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. Types ...
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Auckland
Auckland (pronounced ) ( mi, Tāmaki Makaurau) is a large metropolitan city in the North Island of New Zealand. The List of New Zealand urban areas by population, most populous urban area in the country and the List of cities in Oceania by population, fifth largest city in Oceania, Auckland has an urban population of about It is located in the greater Auckland Region—the area governed by Auckland Council—which includes outlying rural areas and the islands of the Hauraki Gulf, and which has a total population of . While European New Zealanders, Europeans continue to make up the plurality of Auckland's population, the city became multicultural and Cosmopolitanism, cosmopolitan in the late-20th century, with Asian New Zealanders, Asians accounting for 31% of the city's population in 2018. Auckland has the fourth largest Foreign born, foreign-born population in the world, with 39% of its residents born overseas. With its large population of Pasifika New Zealanders, the city is ...
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NZR O Class
The NZR O class consisted of six steam locomotives that operated on New Zealand's national rail network. Ordered from the Baldwin Locomotive Works of Pennsylvania in 1885, three arrived in time to begin work in December 1885, while two more were placed in service in January 1886 and the sixth in February 1886. After almost four decades of service, all six were withdrawn in May 1922. None survived to be preserved, although two engine frames and 5 tenders from O class locomotives are known to exist near Summit on the former Rimutaka Incline. The Baldwin and Rogers locomotives reflected the styling adopted in the 1870s by American builders with elements from the Renaissance Revival and Neo Baroque The Baroque Revival, also known as Neo-Baroque (or Second Empire architecture in France and Wilhelminism in Germany), was an architectural style of the late 19th century. The term is used to describe architecture and architectural sculptur ... architectural styles, and with Islami ...
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Vauclain Compound
The Vauclain compound was a type of compound steam locomotive that was briefly popular circa 1900. Developed at the Baldwin Locomotive Works, it featured two pistons moving in parallel, driving a common crosshead and controlled by a common valve gear using a single, complex piston valve. Advantages and disadvantages The claimed advantage for this arrangement, as with other compounding arrangements, was greater economy due to lower fuel and water consumption. In practice uneven forces at the crosshead produced excess wear, with increased maintenance costs thus offsetting any fuel economies. The integration of the compounding system into the smokebox saddle made conversion to conventional engines straightforward, so most Vauclain compounds were so converted and led normal lives thereafter. The only known operable example is Manitou and Pikes Peak Railway No. 4, which is preserved on-site along with the static display of its sister #5. Design The key to the Vauclain compound is i ...
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