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NZR W class
W class No. 198
Type and origin Power type Steam Builder NZGR Addington Workshops Build date 1902, 1943 Total produced 3
Specifications Configuration: ​  • Whyte 4-6-4T Gauge 3 ft 6 in (1,067 mm) Driver dia. 42.5 in (1.080 m) Adhesive weight 35 long tons (36 t) Loco weight 55.2 long tons (56.1 tonnes; 61.8 short tons) Fuel type Coal Firebox: ​  • Grate area 17.5 sq ft (1.63 m) Boiler pressure 180 lbf/in (1,241 kPa) Heating surface 1,037 sq ft (96.3 m) Cylinders Two, outside Cylinder size 16 in × 22 in (406 mm × 559 mm)
Performance figures Tractive effort 15,780 lbf (70.19 kN)
Career Operators NZR Locale West Coast Withdrawn 1964-1969 Disposition Withdrawn, Scrapped

The NZR W Class were rebuilt from earlier Sharp Stewart built B class locomotives. In service, the first two were tried on the Rimutaka Incline, however, they lacked the required adhesion on the 1 in 15 (6.67%) grade. They were later transferred to Greymouth for use on the Rewanui Incline, where they were far more successful, on the line's 1 in 25 (4%) grade. It is not known if they ever operated on the Roa Incline.

The three We class locomotives lasted until 1964 with the last withdrawn in 1969.

See also

• NZR W class
• NZR W class
• NZR W class
• NZR W class
• NZR W class
• NZR W class
• NZR W class
• NZR W / W class
• Locomotives of New Zealand

References

1. Palmer & Stewart 1965, p. 81.

Bibliography

• Stewart, W. W. (1974). When Steam was King. Wellington: A. H. & A. W. Reed Ltd. ISBN 978-0-589-00382-1.
• Palmer, A. N.; Stewart, W. W. (1965). Cavalcade of New Zealand Locomotives. Wellington: A H. & A W. Reed. ISBN 978-0-207-94500-7.

v t e Rail vehicles of New Zealand
Diesel locomotives	Mainline DA (inc. DAA, DAR) DB (inc. DBR) DC (inc. DCP) DF (English Electric) DF (General Motors) inc. DFT, DFB, DFM DG (inc. DH of 1956) DI DJ DL DM DQ and QR DX (inc. DXB, DXC, DXR) Shunt DE DH of 1978 DS DSA DSB DSC DSG DSJ TR
Electric locomotives	1500 V DC E (later EO of 1968) E E E of 1923 E 25 kV AC EF Battery E E
Diesel multiple units	ADK/ADB class diesel multiple unit ADL/ADC class diesel multiple unit
Electric multiple units	1500 V DC (Wellington) "English Electric" D (inc. D trailers) "Ganz Mavag" EM (inc. ET trailers) "Matangi" FP (inc. FT trailers) 25 kV AC (Auckland) AM (inc. AMP, AMT, AMA)
Railcars	RM class 88 seater (also known as Fiats or twinsets) Clayton steam railcar Edison battery-electric railcar Red Terror railcar Midland railcar Leyland experimental petrol railcar McEwan Pratt petrol railcar Model T Ford railcar Sentinel-Cammell steam railcar Silver Fern railcar Standard railcar Thomas Transmission railcar Vulcan railcar Wairarapa railcar Westinghouse railcar Others A 88 Buckhurst petrol carriage
Steam locomotives	A of 1873 A of 1906 (inc. A) A A B of 1874 B of 1899 B B B C of 1873 C of 1930 D of 1874 D of 1929 E of 1872 & 1875 E of 1906 F F (inc. F) G of 1874 G Garratt of 1928 (inc. Pacific rebuild) H J of 1874 J of 1939 J J K of 1877 K of 1932 K K L L M N N N O O O O P of 1876 P of 1885 Q of 1878 Q of 1901 R S T U U U U U V W W W W W W W W W W W W X Y
Locomotive hauled carriages	50-foot carriage 56-foot carriage AC class (Grassgrubs) ex-British Rail Mark 2 carriage AK carriage FM class guards van SX carriages
Track evaluation, cranes, and maintenance	ETM class track evaluation car EL class rail cranes ETM class rail maintenance equipment
Locomotives of New Zealand Rail transport in New Zealand Railway preservation in New Zealand.

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