NZR WD class
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NZR WD class

NameNZR WD class
PowertypeSteam
Builddate1901
BuilderBaldwin Locomotive Works, Philadelphia, USA
Serialnumber18543 � 18554
19259 � 19264
Weight43.7 LT
Whytetype 
Firstrundate24 May 1901
LastrundateMarch 1936 (for NZR)
1960 (for private companies)
Disposition16 scrapped
2 preserved
Numinclass18
Weightondrivers29.2 LT
Wheelbase27 ft 7 in
Boilerpressure200 psi
Gauge42al=onlk=on
PreservedunitsTwo (WD's 356 & 357)
CurrentownerBaldwin Steam Trust, Canterbury Railway Society (1)
Driversize39.75 in (1 m)
CylindercountTwo
Cylindersize14 x 20 in (35.6 x 50.8 cm )
Tractiveeffort15780 lbf (40081.2 kN)
Retiredate1933 � 1960
LocaleAll of New Zealand
Roadnumber316 � 327
355 � 360
Length34 ft 9 in (88.3 2)
FueltypeCoal
Fuelcap2.7 LT (6.9 2)
Watercap900 impgal (4091.5 L)
Firearea17.7 sqft (1.6 m2)
Totalsurface837 sqft (77.8 m2)

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The NZR WD class was a class of tank locomotive built by Baldwin Locomotive Works to operate on New Zealand's national rail network. Essentially a more advanced version of 1898's WB class, the eighteen members of the WD class were ordered in 1901 and most entered service that year, though three were not introduced until the start of 1902. Based in locations all around the country, from Auckland in the north to Dunedin in the south, the WD class were suitable for a variety of trains from freight to suburban passenger services. Withdrawal of the class began with WD 356 in January 1933, with the final three, 327, 359, and 360, written off in March 1936. A number were not actually scrapped or dumped, but were sold to work on private industrial lines. One such locomotive, WD 357, survived long enough to be preserved by the Ferrymead Railway and notably still has its original boiler from 1901. Another WD, 356, has been located and salvaged by the Baldwin Steam Trust from where it was dumped at Konini near Pahiatua. This locomotive is stored at the Rimutaka Incline Railway Heritage Trust's Maymorn Depot, awaiting restoration.


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Rail vehicles of New Zealand

Battery electric locomotivesE - EB
Diesel locomotivesDA (inc. DAA, DAR) - DB (inc. DBR) - DC (inc. DCP) - DE - DF (English Electric) - DF (General Motors) inc. DFT - DG (inc. DH of 1956) - DH of 1978 - DI - DJ - DL - DQ (inc. QR) - DS - DSA - DSB - DSC - DSG - DSJ - DX (inc. DXB, DXC and DXR) - TR
Diesel Multiple UnitsADK (inc. ADB trailers) - ADL (inc. ADC trailers)
Electric locomotivesEA (later EO of 1968) - EC - ED - EF - EO of 1923 - EW
Electric Multiple UnitsDM (inc. D trailers) - EM (inc. ET trailers) - "Matangi" FP (inc. FT trailers)
RailcarsRM class railcars: 88 seater (also known as Fiats or twinsets) - Clayton steam railcar - Edison battery-electric railcar - Leyland diesel railbus - Leyland experimental petrol railcar - MacEwan-Pratt petrol railcar - Model T Ford railcar - Sentinel-Cammell steam railcar - Silver Fern - Standard - Thomas Transmission - Vulcan - Wairarapa - Westinghouse

Non-RM class railcar: A 88 Buckhurst petrol carriage

Steam locomotivesA of 1873 - A of 1906 (inc. Ad) - AA - AB - B of 1874 - B of 1899 - BA - BB - BC - C of 1873 - C of 1930 - D of 1874 - D of 1929 - E of 1872-75 - E of 1906 - F - FA (inc. FB) - G of 1874 - G Garratt of 1928 (inc. Pacific rebuild) - H - J of 1874 - J of 1939 - JA - JB - K of 1877 - K of 1932 - KA - KB - L - LA - M - N - NA - NC - O - OA - OB - OC - P of 1876 - P of 1885 - Q of 1878 - Q of 1901 - R - S - T - U - UA - UB - UC - UD - V - W - WA - WAB (inc. WS) - WB - WD - WE - WF - WG - WH - WJ - WW - X - Y
Locomotive hauled carriages50-foot carriage - 56-foot carriage - ex-British Rail Mark 2 carriage- AK carriage - FM class guards van
See also: Locomotives of New Zealand; Motive power explanation; Multiple units and Railcars descriptions.



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