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| South Australian Railways O Class (2nd) | |||||||||||||||||||||||||||||||||||||||||
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 South Australian Railways O Class (2nd) No. 204 | |||||||||||||||||||||||||||||||||||||||||
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The South Australian Railways O Class (2nd) locomotive was a 4-4-0 WT built by Robert Stephenson and Company in 1868 for the Launceston and Western Railway Company (now known as the Western Line). It entered service with the South Australian Railways in 1912 and was cut up in 1930. [1]
The Launceston and Western Railway opened in 1871 and had a track gauge of 5 ft 3 in (1,600 mm). This locomotive (No. 1) was in service with another 4-4-0 tank engine for the opening of the line on 10 February 1871. When the Tasmanian Government took over the line in October 1873, this locomotive became a member of their A class. In 1885 the line was converted to 3 ft 6 in (1,067 mm) and the four A class locomotives became redundant. In 1888, No. 1 was sold to a private company in Victoria for use between mines at Woolamai and a jetty at Queensferry. Shortly after, it was put into storage until 1910. It was then sold to Smith and Timms for use on the construction of the railway line to Angaston from Gawler in South Australia. The side tanks were removed, which left the locomotive with only a small tank. It was supplemented with a small four wheeled tank which was coupled to the engine.
Once construction was completed on the Gawler to Angaston line, the contractors sold locomotive No. 1 to the South Australian Railways in February 1912 as No. 204. No. 204 eventually became classed as the second O on the SAR network between 1918 and 1919. The O classes' service on the SAR mainly consisted of shunting at Mile End and Port Adelaide, during which it got a boiler from a Q class locomotive via a rebuild at Islington Railway Workshops. [2]
Under the Whyte notation for the classification of steam locomotives, 4-6-2 represents the wheel arrangement of four leading wheels on two axles, six powered and coupled driving wheels on three axles and two trailing wheels on one axle. The 4-6-2 locomotive became almost globally known as a Pacific type after a locomotive built by the Baldwin Locomotive Works in Philadelphia was shipped across the Pacific Ocean to New Zealand.
Under the Whyte notation for the classification of steam locomotives, 0-4-0 represents one of the simplest possible types, that with two axles and four coupled wheels, all of which are driven. The wheels on the earliest four-coupled locomotives were connected by a single gear wheel, but from 1825 the wheels were usually connected with coupling rods to form a single driven set.
0-6-0 is the Whyte notation designation for steam locomotives with a wheel arrangement of no leading wheels, six powered and coupled driving wheels on three axles, and no trailing wheels. Historically, this was the most common wheel arrangement used on both tender and tank locomotives in versions with both inside and outside cylinders.
4-4-0, in the Whyte notation, denotes a steam locomotive with a wheel arrangement of four leading wheels on two axles, four powered and coupled driving wheels on two axles, and no trailing wheels.
Under the Whyte notation for the classification of steam locomotives, 2-6-0 represents the wheel arrangement of two leading wheels on one axle, usually in a leading truck, six powered and coupled driving wheels on three axles and no trailing wheels. This arrangement is commonly called a Mogul.
Under the Whyte notation for the classification of steam locomotives, 4-8-0 represents the wheel arrangement of four leading wheels on two axles, usually in a leading truck or bogie, eight powered and coupled driving wheels on four axles and no trailing wheels. In North America and in some other countries the type was usually known as the Twelve-wheeler.
Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 2-6-6-2 is a locomotive with one pair of unpowered leading wheels, followed by two sets of three pairs of powered driving wheels and one pair of trailing wheels. The wheel arrangement was principally used on Mallet-type articulated locomotives, although some tank locomotive examples were also built. A Garratt locomotive or Golwé locomotive with the same wheel arrangement is designated 2-6-0+0-6-2 since both engine units are pivoting.
Under the Whyte notation for the classification of steam locomotives, 0-4-2 represents the wheel arrangement with no leading wheels, four powered and coupled driving wheels on two axles and two trailing wheels on one axle. While the first locomotives of this wheel arrangement were tender engines, the configuration was later often used for tank engines, which is noted by adding letter suffixes to the configuration, such as 0-4-2T for a conventional side-tank locomotive, 0-4-2ST for a saddle-tank locomotive, 0-4-2WT for a well-tank locomotive and 0-4-2RT for a rack-equipped tank locomotive.
Under the Whyte notation for the classification of steam locomotives, 2-6-0+0-6-2 represents the wheel arrangement of an articulated locomotive with two separate swivelling engine units, arranged back to back with the boiler and cab suspended between them. Each engine unit has two leading wheels in a leading truck, six powered and coupled driving wheels on three axles and no trailing wheels.
South Australian Railways (SAR) was the statutory corporation through which the Government of South Australia built and operated railways in South Australia from 1854 until March 1978, when its non-urban railways were incorporated into Australian National, and its Adelaide urban lines were transferred to the State Transport Authority.
The Tasmanian Government Railways (TGR) was the former operator of the mainline railways in Tasmania, Australia. Formed in 1872, the railway company was managed by the Government of Tasmania, and existed until absorption into the Australian National Railways Commission in 1978.
Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-8-2+2-8-4 is a Garratt articulated locomotive consisting of a pair of 4-8-2 engine units back to back, with the boiler and cab suspended between them. The 4-8-2 wheel arrangement has four leading wheels on two axles, usually in a leading bogie, eight powered and coupled driving wheels on four axles and two trailing wheels on one axle, usually in a trailing truck. Since the 4-8-2 type is generally known as a Mountain, the corresponding Garratt type is usually known as a Double Mountain.
The South Australian Railways T class was a class of seventy-eight 1067 mm narrow-gauge 4-8-0 steam locomotives operated by the South Australian Railways. Several were sold to the Tasmanian Government Railways; some others operated on the Commonwealth Railways. Four were converted to operate on 1600 mm broad-gauge lines.
The South African Railways Class NG1 0-4-0T of 1900 was a narrow-gauge steam locomotive from the pre-Union era in Transvaal.
The South African Railways Class NG2 0-4-2ST of 1897 was a narrow-gauge steam locomotive from the pre-Union era in Transvaal.
The South African Railways Class NG3 4-6-2T of 1907 was a narrow-gauge steam locomotive from the pre-Union era in the Colony of Natal.
The Cape Government Railways 1st Class 4-4-0T of 1875 was a South African steam locomotive from the pre-Union era in the Cape of Good Hope.
The Natal Government Railways Class N 4-6-2T of 1906 was a South African steam locomotive from the pre-Union era in the Natal Colony.
The first South Australian Railways I class locomotive was built by Neilson and Company, Scotland for the Canterbury Provincial Railways, New Zealand in 1873 and numbered 9. In May 1878, the South Australian Railways (SAR) purchased it. The ship that transported it to South Australia was wrecked, but the locomotive was salvaged and entered service on the SAR in April 1879 as number 38. In 1880 or 1881, it was renumbered 48. It was allocated to "I" class – which was ultimately to be known as the "first I class" – in 1887 or 1888. In October 1905, the SAR withdrew it from service, then sold it in May 1906 to the South Australian Harbours Board for use in the construction of the Outer Harbour breakwater. It was scrapped in August 1909.
Eighteen South Australian Railways K class (broad-gauge) locomotives were built by Beyer, Peacock and Company for the South Australian Railways (SAR) between 1878 and 1884. They had a fundamental design flaw that affected their original role as light-line passenger locomotives, relegating them eventually to shunting duties exclusively. They operated for six decades.