NZR NA class

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NZR NA class
Type and origin
Power typeSteam
Builder Baldwin Locomotive Works
Serial number13913, 15054
Build date1894, 1896
Total produced2
Specifications
Configuration:
​
 •  Whyte 2-6-2
 •  UIC 1′C1′ n
Gauge 3 ft 6 in (1,067 mm)
Driver dia.49 in (1.245 m)
Length50 ft 10 in (15.49 m)
Adhesive weight 25 long tons 4 cwt (56,400 lb or 25.6 t)
25 long tons 4 hundredweight (25.6 t; 28.2 short tons)
Loco weight35 long tons 4 cwt (78,800 lb or 35.8 t)
35 long tons 4 hundredweight (35.8 t; 39.4 short tons)
Tender weight19 long tons 2 cwt (42,800 lb or 19.4 t)
19 long tons 2 hundredweight (19.4 t; 21.4 short tons)
Total weight54 long tons 10 cwt (122,100 lb or 55.4 t)
54 long tons 10 hundredweight (55.4 t; 61.0 short tons)
Fuel type Coal
Fuel capacity3 long tons 0 cwt (6,700 lb or 3 t)
6 long tons 0 hundredweight (6.1 t; 6.7 short tons)
Water cap.1,500 imp gal (6,800 l; 1,800 US gal)
Firebox:
 • Firegrate area		16.7 sq ft (1.55 m2)
Boiler pressure180 lbf/in2 (1,241 kPa)
Heating surface957 sq ft (88.9 m2)
SuperheaterNone
Cylinders Four (Vauclain compound)
High-pressure cylinder10 in × 20 in (254 mm × 508 mm)
Low-pressure cylinder17 in × 20 in (432 mm × 508 mm)
Performance figures
Tractive effort 9,700 lbf (43.15 kN)
Career
Operators Wellington and Manawatu Railway, New Zealand Government Railways
NumbersWMR 14, 15
NZR 459, 460
Locale Frankton, Wairarapa, Wellington - Longburn section
Withdrawn1929
DispositionWithdrawn

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. [1]

Contents

In 1908, the WMR was incorporated into the national network and the government's Railways Department reclassified the engines as the sole members of the NA class: No. 14 became NA 459 and No. 15 became NA 460. They operated for roughly another two decades; NA 459 spent its final days working in Frankton near Hamilton and was withdrawn from service in March 1929, while NA 460's last depot was Cross Creek at the Wairarapa end of the Rimutaka Incline and it was withdrawn in July 1929.

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NZR O class

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NZR N class

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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

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NZR O<sup>A</sup> 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. The locomotive was known to WMR staff as "The Lady".

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 E class (1906)

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NZR B<sup>B</sup> class

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NZR B<sup>C</sup> class

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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 D class (1874)

NZR D class steam tank locomotives operated on New Zealand's national railway network. The first entered service in 1874 all had been withdrawn by the end of 1927, which allowed the D classification to be used again in 1929.

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.

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 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

Bibliography

  • Millar, Sean (2011). The NZR Steam Locomotive. Wellington: New Zealand Railway and Locomotive Society. ISBN   978-0-908573-89-9.
  • Palmer, A. N.; Stewart, W. W. (1965). Cavalcade of New Zealand Locomotives. Wellington: A H. & A W. Reed. ISBN   978-0-207-94500-7.
  • Stewart, W. W. (1974). When Steam was King. Wellington: A. H. & A. W. Reed Ltd. ISBN   978-0-589-00382-1.
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