New Zealand EW class locomotive

New Zealand EW class locomotive
EW 1805 with DC 4611 approaching Paekākāriki, 21 August 2005. The EW had been purchased for preservation and was later towed to Plimmerton.
Type and origin
Power typeElectric
BuilderEnglish Electric/Robert Stephenson and Hawthorns, England
Specifications
Configuration:
​
 • CommonwealthBo-Bo-Bo
Gauge1,067 mm (3 ft 6 in)
Length18.9 metres (62 ft 0 in)
Adhesive weight76 tonnes (75 long tons; 84 short tons)
Loco weight76 tonnes (75 long tons; 84 short tons)
Electric system/s1500 V DC overhead lines
Current pickup(s)Pantograph
Traction motors6
Performance figures
Maximum speed97 km/h (60 mph)
Power output1,340 kW (1,800 hp)
Tractive effort104 kN (23,000 lbf)
Career
OperatorsNew Zealand Railways
ClassEW
Number in class7
LocaleWellington region
First run18 March 1952
Last run20 December 1983
Disposition5 scrapped
2 preserved

The New Zealand EW class locomotive was a type of electric locomotive used in Wellington, New Zealand. The classification "EW" was due to their being electric locomotives allocated to Wellington. For two decades until the introduction of the DX class diesel locomotives in 1972 they were the most powerful locomotives in New Zealand.

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