NZR W class

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NZR W class
Type and origin
Power type Steam
Builder NZR Addington Workshops, Christchurch (2)
Build date 1889 - 1891
 • Whyte 2-6-2T
Gauge 3 ft 6 in (1,067 mm)
Wheel diameter 36.5 in (0.927 m)
Wheelbase 22 ft 3 in (6.78 m)
Length 29 ft 5 in (8.97 m)
Adhesive weight 26.2 long tons (26.6 t; 29.3 short tons)
Loco weight 37.3 long tons (37.9 tonnes; 41.8 short tons)
Fuel type Coal
Fuel capacity 1.8 long tons (1.8 t; 2.0 short tons)
Water cap 900 imp gal (4,100 L; 1,100 US gal)
 • Firegrate area
12 sq ft (1.1 m2)
Boiler pressure 150 psi (1,034 kPa)
Heating surface 683 sq ft (63.5 m2)
Cylinders Two
Cylinder size 14 in × 20 in (356 mm × 508 mm)
Performance figures
Tractive effort 12,888 lbf (57.33 kN)
Number in class 2
Numbers 192 - 238
Locale All of New Zealand
First run 1889 - 1891
Retired 1959
Scrapped 1959
Current owner Rail Heritage Trust (1)
Disposition Withdrawn, 1 preserved

The NZR W class consisted of two steam locomotives built at the Addington Railway Workshops in Christchurch, New Zealand by the New Zealand Railways Department.

Almost all subsequent tank locomotive classes built by NZR were classified as sub-classes of the W class, e.g. WA, WAB, WB. The only exception was the Y class.

Preserved locomotives[edit]

After withdrawal W 192 was stored at Hillside Workshops until 1962 when the New Zealand Railways Department used it for promotions. In 1964 it was placed in storage in Arthurs Pass. In 1973 it was restored for static display for the NZR. But in 1979 it was restored to operational condition and used in places with F 163 including shuttle trains in Wellington. In 1988 it was used hauling trains from Christchurch to Rangiora for a week for the Ferrymead 125 celebrations. One of the days it was taken out of service for repairs to her firebox and was replaced by C 864, but returned to service the following day. In 1992 W 192 was leased to the Ashburton Railway & Preservation Society for uses on their former Mount Somers Branchline at The Plains Vintage Railway & Historical Museum. In 1993 the NZR sold 192 to the Rail Heritage Trust of New Zealand. On 16 and 17 September 1995 the 'W' took part at the 1995 Waipara Vintage Festival held by the Weka Pass Railway. After the festival it was returned to The Plains Railway. It was sent again to Waipara for the 1997 festival then repeated again in 1999. During the 1999 festival it developed minor boiler issues and only ran one trip to Waikari from Glenmark, but only ran in more minor roles. In 2001 it was transported to the Linwood Locomotive Depot from The Plains and placed into storage. On 7 October 2003 it was announced by the Rail Heritage Trust it would be on long-term loan to the Canterbury Railway Society for uses at the Ferrymead Heritage Park. It arrived during the same month just in time for the 140th Railway celebrations at Ferrymead.

Class register[edit]

Key: In service On lease Out of service Preserved Overhaul/Repair Scrapped
Number Builder Entered service Withdrawn Notes
192 NZR Addington February 1889 July 1959 Owned by the Rail Heritage Trust of New Zealand. Formerly Mainline Certified. Preserved, Canterbury Railway Society. First locomotive built by NZR.
238 NZR Addington June 1891 August 1959


  • W.W.Stewart, When Steam Was King, REED, 1970

External links[edit]