Tasmanian Government Railways M class (1912)

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Tasmanian Government Railways M class
Type and origin
Power typeSteam
Builder Beyer, Peacock & Co
Serial number5523, 5524
Build date1912
Total produced2
Specifications
Configuration:
​
 •  Whyte 4-4-2+2-4-4
Gauge 1,067 mm (3 ft 6 in)
Driver dia.5 ft 0 in (1,524 mm)
Total weight95  long tons  0 cwt (212,800 lb or 96.5 t)
Fuel typeCoal
Boiler pressure160 lbf/in2 (1.10 MPa)
Cylinder size 12 in × 20 in (305 mm × 508 mm)
Performance figures
Tractive effort 24,576 lbf (109.32 kN)
Career
Operators Tasmanian Government Railways
NumbersM1-M2
DispositionBoth scrapped

The Tasmanian Government Railways M class was a class of 4-4-2+2-4-4 Garratt steam locomotives operated by the Tasmanian Government Railways.

4-4-2 (locomotive) locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, 4-4-2 represents a configuration of four leading wheels on two axles, usually in a leading bogie with a single pivot point, four powered and coupled driving wheels on two axles, and two trailing wheels on one axle, usually in a trailing truck which supports part of the weight of the boiler and firebox and gives the class its main improvement over the 4-4-0 configuration.

Garratt articulated steam locomotive with power unit at each end, and boiler slung between

A Garratt is a type of steam locomotive that is articulated into three parts. Its boiler is mounted on the centre frame, and two steam engines are mounted on separate frames, one on each end of the boiler. Articulation permits larger locomotives to negotiate curves and lighter rails that might restrict large rigid-framed locomotives. Many Garratt designs aimed to double the power of the largest conventional locomotives operating on their railways, thus reducing the need for multiple locomotives and crews.

Steam locomotive Railway locomotive that produces its pulling power through a steam engine

A steam locomotive is a type of railway locomotive that produces its pulling power through a steam engine. These locomotives are fueled by burning combustible material – usually coal, wood, or oil – to produce steam in a boiler. The steam moves reciprocating pistons which are mechanically connected to the locomotive's main wheels (drivers). Both fuel and water supplies are carried with the locomotive, either on the locomotive itself or in wagons (tenders) pulled behind.

Contents

History

In 1912, the Tasmanian Government Railways took delivery of two 4-4-2+2-4-4 Garratt locomotives from Beyer, Peacock & Co, Manchester. They were designed to haul express passenger trains between Launceston and Hobart. With the introduction of the R class, M1 was withdrawn in 1923 and sold to the Mount Lyell Mining and Railway Company while M2 was withdrawn in 1931 and scrapped in 1953. [1] [2] [3]

Tasmanian Government Railways former railway operator in Australia

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.

Manchester City and metropolitan borough in England

Manchester is a major city and metropolitan borough in Greater Manchester, England, with a population of 534,982 as of 2018. It lies within the United Kingdom's second-most populous urban area, with a population of 2.9 million, and third-most populous metropolitan area, with a population of 3.3 million. It is fringed by the Cheshire Plain to the south, the Pennines to the north and east, and an arc of towns with which it forms a continuous conurbation. The local authority for the city is Manchester City Council.

Launceston, Tasmania City in Tasmania, Australia

Launceston is a city in the north of Tasmania, Australia, at the junction of the North Esk and South Esk rivers where they become the Tamar River (kanamaluka). Launceston is the second most populous city in Tasmania after the state capital, Hobart, and the twelfth-largest non-capital city in Australia.

Namesake

The M class designation was reused by the M class that was introduced in 1952.

Tasmanian Government Railways M class (1952) class of 10 Australian 4-6-2 locomotives

The Tasmanian Government Railways M class was a class of 4-6-2 steam locomotives operated by the Tasmanian Government Railways.

Related Research Articles

Beyer, Peacock and Company defunct British locomotive manufacturer, based in Gorton, Manchester

Beyer, Peacock and Company was an English railway locomotive manufacturer with a factory in Gorton, Manchester. Founded by Charles Beyer, Richard Peacock and Henry Robertson, it traded from 1854 until 1966. It received limited liability in 1902, becoming Beyer, Peacock and Company Limited.

Tasmanian Government Railways K class class of 2 Australian 0-4-0+0-4-0 Garratt locomotives

The Tasmanian Government Railways K class was a class of 0-4-0+0-4-0 Garratt steam locomotives operated by the Tasmanian Government Railways. It was the first class of Garratt locomotives ever produced.

Australian Standard Garratt locomotive class

The Australian Standard Garratt (ASG) was a Garratt steam locomotive designed in Australia during World War II, and used on 3 ft 6 in narrow gauge railway systems in Queensland, South Australia, Western Australia and Tasmania.

2-6-0+0-6-2 Garratt locomotive wheel arrangement

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.

0-4-0+0-4-0 locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 0-4-0+0-4-0 is an articulated locomotive of the Garratt type. The wheel arrangement is effectively two 0-4-0 locomotives operating back-to-back or face-to-face, with the boiler and cab suspended between the two power units. Each power unit has no leading wheels, four powered and coupled driving wheels on two axles and no trailing wheels. A similar arrangement exists for Mallet and Meyer locomotives, but is referred to as 0-4-4-0.

4-8-4+4-8-4 Garratt locomotive wheel arrangement

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, the 4-8-4+4-8-4 is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-8-4 locomotives operating back to back, with the boiler and cab suspended between the two engine units. Each engine unit has two pairs of leading wheels in a leading bogie, followed by four coupled pairs of driving wheels and two pairs of trailing wheels in a trailing bogie. Since the 4-8-4 type is sometimes known as a Northern, the corresponding Garratt type would be referred to as a Double Northern.

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.

Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-4-2+2-4-4 is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-4-2 locomotives operating back to back, with each power unit having four leading wheels on two axles in a leading bogie, four powered and coupled driving wheels on two axles, and two trailing wheels on one axle in a trailing truck. Since the 4-4-2 type is usually known as an Atlantic, the corresponding Garratt type is often referred to as a Double Atlantic.

New South Wales AD60 class locomotive class of 42 four-cylinder 4-8-4+4-8-4 Garratt locomotives

The AD60 class were Beyer-Garratt patent articulated four-cylinder, simple, non-condensing, coal-fired superheated, 4-8-4+4-8-4 heavy goods steam locomotives built by Beyer, Peacock and Company for the New South Wales Government Railways in Australia.

The Tasmanian Government Railways G class was a class of 0-4-2T steam locomotives operated by the Tasmanian Government Railways.

The Emu Bay Railway was an Australian railway company. Listed on the Melbourne Stock Exchange, it operated the Melba Line on the West Coast of Tasmania from 1897 until 1998.

WAGR M class class of 6+7 Australian 2-6-0+0-6-2 Garratt locomotives, built 1911–1913

The WAGR M class was a class of 2-6-0+0-6-2 Garratt-type articulated steam locomotives operated by the Western Australian Government Railways (WAGR) between 1912 and 1955. A total of 13 of them were built by Beyer, Peacock & Co, Manchester in two batches.

The Tasmanian Government Railways A class was a class of 4-4-0 steam locomotives operated by the Tasmanian Government Railways.

The Tasmanian Government Railways B class was a class of 4-4-0 steam locomotives operated by the Tasmanian Government Railways.

The Tasmanian Government Railways H class was a class of 4-8-2 steam locomotives operated by the Tasmanian Government Railways.

The Tasmanian Government Railways L class was a class of 2-6-2+2-6-2 Garratt steam locomotives operated by the Tasmanian Government Railways.

The Tasmanian Government Railways Q class was a class of 4-8-2 steam locomotives operated by the Tasmanian Government Railways.

The Tasmanian Government Railways R class was a class of 4-6-2 steam locomotives operated by the Tasmanian Government Railways.

References

  1. ↑ Turner, Jim (1997). Australian Steam Locomotives 1896-1958. Kenthurst: Kangaroo Press. p. 60. ISBN   086417778X.
  2. ↑ Oberg, Leon (2010). Locomotives of Australia 1850s-2010. Dural: Rosenberg Publishing. pp. 152/153. ISBN   9781921719011.
  3. ↑ "Steam Locomotives of the Tasmanian Government Railways and its Constituents" Australian Railway History issue 917 March 2014 page 9
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