NZR M class

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NZR M Class
M Class locomotive NZ.jpg
Image courtesy of A P Godber Collection, Alexander Turnbull Library
Type and origin
Power typeSteam
Builder Hunslet
Build date1875
Total produced4
Rebuilder NZR
Rebuild date1888-1890
Specifications
Configuration:
​
 •  Whyte 0-6-0T
Driver dia.42.25 in (1.073 m)
Loco weight27.7 long tons (28.1 tonnes; 31.0 short tons)
Firebox:
 • Firegrate area		8.6 sq ft (0.80 m2)
Boiler pressure130 lbf/in2 (896 kPa)
Heating surface583 sq ft (54.2 m2)
Cylinders Two, outside
Cylinder size 13 in × 20 in (330 mm × 508 mm)
Performance figures
Tractive effort 7,200 lbf (32.03 kN)
Career
First run1875

The NZR M class were a series of four tank engines built in England for the Otago railways Bluff to Winton section. They were acquired by NZR in the late 1870s and rebuilt in the late 1880s. As rebuilt they were not very successful and were used in shunting duties until retirement in the 1920s. [1]

Contents

They were rather ineffectual engines derisively called the Pullets by engine men. They were used on the Napier Express at the turn of the century; either in pairs or with a Baldwin N class when the duo was called a 'en and chicken. [2]

Footnotes

    Related Research Articles

    NZR A class (1873)

    The NZR A class of 1873 consisted of three types of steam locomotives used on New Zealand's railway network of similar specification but differing detail. The first and most numerous were from the Dübs and Company, the next from the Wellington firm E.W. Mills Lion Foundry, and the last from the Scottish firm of Shanks. The specifications are for the Dubs Yorkshire engines.

    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 After almost four decades of service, all six were withdrawn in May 1922.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 NZR NA class was a class of two steam locomotives that operated on the privately-owned Wellington and Manawatu Railway (WMR) and then the publicly owned New Zealand Railways (NZR). Ordered by the WMR to operate on its line up the west coast of the North Island north of Wellington, the first was built in 1894 by the Baldwin Locomotive Works and entered service that year as WMR No. 14. In 1896, a second locomotive that was slightly more powerful was ordered from Baldwin, and it entered service in October 1897. The engines were similar to the two members of the N class ordered in 1891, except they were heavier and more powerful. They were Vauclain compound locomotives.

    NZR N<sup>C</sup> class

    The NZR NC class was a class of two steam locomotives built by Baldwin Locomotive Works built for service on New Zealand's private Wellington and Manawatu Railway (WMR). They did not acquire their NC classification until the publicly owned New Zealand Railways Department (NZR) purchased the WMR and its locomotive fleet.

    NZR O<sup>B</sup> class

    The OB class was the first class of steam locomotives constructed by the Baldwin Locomotive Works for the Wellington and Manawatu Railway Company (WMR) in New Zealand. The class consisted of two locomotives ordered in 1888, and they entered service in September of that year as WMR No.'s 11 and 12.

    NZR O<sup>C</sup> class

    The OC class, built by the Baldwin Locomotive Works for the Wellington and Manawatu Railway (WMR) in New Zealand, consists of a solitary steam locomotive. Ordered in 1896 as an externally similar but more powerful version of the OA class locomotive ordered in 1894, it entered service in June 1897 as No. 16. It was a Vauclain compound locomotive.

    NZR P class (1876)

    The NZR P class was a class of two 0-6-0ST locomotives built to work on the government-owned national rail network of New Zealand in 1876. They were initially ordered by the Otago Provincial Council, but they were soon incorporated into the national locomotive fleet when the provinces were abolished. Other examples of the P class were built for industrial service and never came under the ownership of the New Zealand Railways Department, though one worked on the Kaitangata Line.

    NZR B class (1899)

    The NZR B class of 1899 was a class of steam locomotives that operated on New Zealand's national rail network. An earlier B class of Double Fairlies had entered service in 1874, but as they had departed from the ownership of the New Zealand Railways (NZR) by the end of 1896, the B classification was free to be re-used. Despite early difficulties, they were amongst NZR's most influential designs.

    NZR G class (1928)

    The NZR G class was a type of Garratt steam locomotive used in New Zealand, the only such Garratt type steam locomotives ever used by the New Zealand Railways (NZR). They were ordered to deal with traffic growth over the heavy gradients of the North Island Main Trunk (NIMT) and to do away with the use of banking engines on steep grades. They were one of the few Garratt designs to employ six cylinders. A mechanical stoker was used to feed coal into the locomotive.

    NZR L<sup>A</sup> class

    The NZR LA class was a class of 4-4-0T steam locomotives used by the New Zealand Railways Department and the New Zealand Midland Railway Company. They were built by Nasmyth, Wilson and Company in 1887 for New Zealand Midland Railway Company, and were taken over by NZR in 1900, when the government acquired the incomplete Midland line. The designation also applies to the NZR 4-4-0Trebuilds of the Avonside L class of 1875 which were later reclassified LB after being rebuilt as 4-4-2Ts.

    NZR R class

    The NZR R class was a class of early 0-6-4T single Fairlie steam locomotives operated by New Zealand's Railways Department (NZR) between 1879 and 1936.

    NZR V class

    The New Zealand V class steam locomotive was used on New Zealand's railway network from 1885 onwards. They were operated by New Zealand Government Railways and the Wellington and Manawatu Railway Company.

    The NZR S class was a class of seven 0-6-4T single Fairlie steam locomotives used in New Zealand.

    NZR W<sup>J</sup> class

    The NZR WJ class was a class of one steam locomotive built by Baldwin Locomotive Works for service on New Zealand's private Wellington and Manawatu Railway (WMR). She acquired the WJ classification when the publicly owned New Zealand Railways Department (NZR) purchased the WMR and its locomotive fleet in 1908.

    NZR F<sup>A</sup> class

    The NZR FA class was a class of tank steam locomotives that was built as a larger version of the NZR F class 0-6-0T. The requirements were for larger water and coal capacity on a locomotive that could handle grades better than the F class. Due to costs involved in producing new machines, NZR chose to rebuild existing machines with larger coal and water capacity, larger boiler and firebox, higher boiler pressure and larger diameter pistons. Seven F class engines were rebuilt between 1892 and 1897. Another seven were built new, one at Newmarket Workshops in 1896 and six at Addington Workshops in 1902–03.

    The NZR WA class locomotives were a class of Tank locomotive built for use for New Zealand Railways (NZR). 11 were built in-house at the Addington Workshops and at Hillside Workshops. Four more were converted from old J class 2-6-0 locomotives.

    NZR L class

    The NZR L class were a series of ten small tank engines built in England for the New Zealand Railways Department (NZR) during the early years of the development of New Zealand's railway network.

    NZR W<sup>G</sup> class

    The NZR WG class was a development of the preceding WF class of all purpose tank locomotive. Later in their careers most (14) were rebuilt as WW class. The locomotives were designed by A. L. Beattie, who described them as a "large tank locomotive."

    NZR W<sup>W</sup> class Class of 50 (+14) New Zealand 4-6-4T locomotives

    The New Zealand WW class was a class of 4-6-4T tank locomotives that operated on the New Zealand national railway network. They were built for New Zealand Railways Department (NZR), and were the final development of the six-coupled tank engine in New Zealand, the penultimate class of tank locomotives to be built for NZR, and the first class of tank locomotives to be built with superheaters.

    NZR Y class

    The NZR Y class was a class of three 0-6-0T tank steam locomotives. Built by the Hunslet Engine Company for the Public Works Department in 1923, all three were sold to NZR between 1938 and 1945.

    References

    1. ↑ Palmer & Stewart 1965, p. 38.
    2. ↑ Mahoney, J D (1987) [1982]. Kings of the Iron Road: Steam Passenger Trains of New Zealand. Palmerston North: Dunmore Press. p. 52. ISBN   0-908564-90-2.

    Bibliography

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