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2-6-6-0
Under the Whyte notation for the classification of steam locomotives by wheel arrangement, is a locomotive with one pair of unpowered leading wheels, followed by two sets of three pairs of powered driving wheels and no trailing wheels. The wheel arrangement was principally used on Mallet-type articulated locomotives. Some tank locomotive examples were also built, for which various suffixes to indicate the type of tank would be added to the wheel arrangement, for example for an engine with side-tanks. Overview The 2-6-6-0 wheel arrangement was most often used for articulated compound steam Mallet locomotives. In a compound Mallet, the rear set of coupled wheels are driven by the smaller high pressure cylinders, from which spent steam is then fed to the larger low pressure cylinders that drive the front set of coupled wheels. Compounding Steam Engines Usage New Zealand The sole NZR E class locomotive of 1906 was the only 2-6-6-0T locomotive ever built for and used by the Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class MA 2-6-6-0
The South African Railways Class MA 2-6-6-0 of 1909 was a steam locomotive from the pre-Union era in the Natal Colony. In 1909, the Natal Government Railways placed a single Mallet articulated compound steam locomotive in service. In 1912, when it was assimilated into the South African Railways, it was renumbered and designated Class MA.Espitalier, T.J.; Day, W.A.J. (1944). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter III - Natal Government Railways'' (Continued). South African Railways and Harbours Magazine, August 1944. pp. 592-593.Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, pp. 9, 12, 15, 46 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000) Manufacturer As a result of a visit to the United States of America by Natal Government Railways (NGR) Locomotive Superintendent D.A. Hendrie in 1909 to study Mallet type locomotives and also American lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class MB 2-6-6-0
The South African Railways Class MB 2-6-6-0 of 1910 was a steam locomotive from the pre-Union era in the Colony of Natal. In November 1910, the Natal Government Railways placed five Mallet articulated compound steam locomotives in service. In 1912, when they were assimilated into the South African Railways, they were renumbered and designated .Espitalier, T.J.; Day, W.A.J. (1945). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways.'' South African Railways and Harbours Magazine, April 1945. p. 274.Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 9, 12, 15, 46 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000) Manufacturer Following on the satisfactory performance of the experimental Mallet compound steam locomotive which had been acquired by the Natal Government Railways (NGR) in 1909, a further five similar locomotive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class MJ 2-6-6-0
The South African Railways Class MJ 2-6-6-0 of 1914 was a class of articulated steam locomotives. Between 1914 and 1921, the South African Railways placed eighteen Class MJ Mallet articulated compound steam locomotives with a wheel arrangement in branch line service.Espitalier, T.J.; Day, W.A.J. (1945). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued).'' South African Railways and Harbours Magazine, May 1945. pp. 349-350.South African Railways and Harbours Locomotive Diagram Book, 2’0” & 3’6” Gauge Steam Locomotives, 15 August 1941, as amended Manufacturers The Class MJ 2-6-6-0 Mallet articulated compound steam locomotive was designed by D.A. Hendrie, Chief Mechanical Engineer (CME) of the South African Railways (SAR) from 1910 to 1922, to meet the need for engines with a higher tractive effort to cope with heavy traffic on branch lines. Ten of these branch line locomotives were ordered from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class MC1 2-6-6-0
The South African Railways Class MC1 2-6-6-0 of 1914 was a steam locomotive. In 1914 the South African Railways placed fifteen Class MC1 Mallet articulated compound steam locomotives with a 2-6-6-0 wheel arrangement in service. Manufacturer Orders for an improved version of the Class MC were placed with the North British Locomotive Company in 1913. When the fifteen locomotives were delivered and placed in service in May 1914, they were designated Class MC1 and numbered in the range from 1634 to 1648.Espitalier, T.J.; Day, W.A.J. (1945). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued).'' South African Railways and Harbours Magazine, May 1945. p. 349.North British Locomotive Company works list, compiled by Austrian locomotive historian Bernhard Schmeiser Characteristics The Class MC1 were duplicates of the Class MC in most respects, to the extent that the majority of spare parts for the two classes we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class MC 2-6-6-0
The South African Railways Class MC 2-6-6-0 of 1912 was a steam locomotive. In 1912, the South African Railways placed ten Class MC Mallet articulated compound steam locomotives with a 2-6-6-0 wheel arrangement in service in Natal.Espitalier, T.J.; Day, W.A.J. (1945). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter VII - South African Railways (Continued).'' South African Railways and Harbours Magazine, May 1945. pp. 347-350, 356.Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 9, 12, 15, 46 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000) Manufacturer To augment the Mallet locomotive fleet operating across the more difficult sections of the Natal mainline, the South African Railways (SAR) placed an order with the North British Locomotive Company for ten compound steam locomotives which were very similar to the Class MB. They were delivered and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Type TM Tender
The South African type TM tender was a steam locomotive tender from the pre-Union era in the Natal Colony. The Type TM tender first entered service in 1911, as tenders to a second batch of 25 Mountain type steam locomotives which were ordered by the Natal Government Railways in that year. These locomotives were designated Class 3 on the South African Railways in 1912.South African Railways & Harbours/Suid Afrikaanse Spoorweë en Hawens (15 Aug 1941). ''Locomotive Diagram Book/Lokomotiefdiagramboek, 3'6" Gauge/Spoorwydte''. SAR/SAS Mechanical Department/Werktuigkundige Dept. Drawing Office/Tekenkantoor, Pretoria. p. 43.South African Railways & Harbours/Suid Afrikaanse Spoorweë en Hawens (15 Aug 1941). ''Locomotive Diagram Book/Lokomotiefdiagramboek, 2'0" & 3'6" Gauge/Spoorwydte, Steam Locomotives/Stoomlokomotiewe''. SAR/SAS Mechanical Department/Werktuigkundige Dept. Drawing Office/Tekenkantoor, Pretoria. pp. 6a-7a, 44. Manufacturer Type TM tenders were built between 1910 an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natal Government Railways
The Natal Government Railways (NGR) was formed in January 1877 in the Colony of Natal. In 1877, the Natal Government Railways acquired the Natal Railway Company for the sum of £40,000, gaining the line from the Point to Durban and from Durban to Umgeni. This move, inspired in part by the neighbouring Cape Prime Minister John Molteno's 1873 establishment of the Cape Government Railways, was intended to drive the extension of Natal's railways inland, towards the Drakensberg and eventually the Orange Free State. The Natal Government Railways also adopted the Cape gauge. The core line went from Durban to Volksrust, but reached Charlestown ( from the border of the South African Republic) in 1891 and was linked to the Witwatersrand in 1895. Other important lines were the one linking with the Orange Free State reaching Harrismith in 1892, as well as the North Coast and South Coast lines. In 1910, the Union of South Africa was formed and in 1912 the NGR combined with the other colonies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NZR E Class (1906)
The New Zealand E class locomotive comprised a single Mallet steam locomotive operated by New Zealand Railways Department, New Zealand Railways (NZR) from 1906 until 1917. Classified as E 66 and nicknamed Pearson's Dream after its designer, it was an experimental Mallet locomotive designed to work on the Rimutaka Incline. The "E" classification was previously used by the Fairlie locomotive, Double Fairlie NZR E class (1872), E class of 1872-75, but the classification was free as they had all been withdrawn by the time E 66 entered service. After the withdrawal of E 66, "E" was again re-used on the electric locomotive, battery-electric NZR E class (1922), E class of 1922. It was the only Mallet locomotive to operate for the NZR Origin and design The Rimutaka Incline opened in 1878, connecting Wellington with the Wairarapa region, and with the completion of the Wairarapa Line in December 1897, it provided NZR's main link to the north as the west coast route was then privately owne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whyte Notation
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 (in the latter case also for diesel and electric 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. 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 being separated by dashes. For example, a locomotive with two leadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mallet Locomotive
The Mallet locomotive is a type of articulated steam railway locomotive, invented by the Swiss engineer Anatole Mallet (1837–1919). The front of the locomotive 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 empl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wheel Arrangement
In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. Several notations exist to describe the wheel assemblies of a locomotive by type, position, and connections, with the adopted notations varying by country. Within a given country, different notations may also be employed for different kinds of locomotives, such as steam, electric, and diesel powered. Especially in steam days, wheel arrangement was an important attribute of a locomotive because there were many different types of layout adopted, each wheel being optimised for a different use (often with only some being actually "driven"). Modern diesel and electric locomotives are much more uniform, usually with all axles driven. Major notation schemes The main notations are the Whyte notation (based on counting the wheels), the AAR wheel arrangement notation (based on counting either the axles or the bogies), and the UIC classificat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South African Class 3 4-8-2
The South African Railways Class 3 of 1909 was a steam locomotive from the pre-Union era in the Colony of Natal. In 1909, the Natal Government Railways placed the world’s first true Mountain type locomotive in service when five Class B tender locomotives were commissioned. Another 25 were placed in service in 1911. In 1912, when they were assimilated into the South African Railways, they were renumbered and designated Class 3. The Mountain wheel arrangement went on to become the most numerous steam locomotive wheel configuration in use in South Africa.Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer’s Office, Pretoria, January 1912, pp. 7, 12, 15, 45-46 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)Espitalier, T.J.; Day, W.A.J. (1944). ''The Locomotive in South Africa - A Brief History of Railway Development. Chapter III - Natal Government Railways'' (Continued). South African Railways and Harbours Magazine, A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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