NZR EA class

NZR EA class
NZR EA/EO class
EO45 at Plimmerton in 2008.
Power type Electric
Builder Toshiba Heavy Industries, Japan.
Build date 1968
UIC classification Bo-Bo
Gauge 1,067 mm (3 ft 6 in) Cape gauge
Length 11.6 metres (38 ft)
Weight on drivers 55 tonnes (54 long tons; 61 short tons)
Locomotive weight 55 tonnes (54 long tons; 61 short tons)
Electric system 1500 V DC
Current collection
method
Pantograph
Traction motors 4
Top speed 72 km/h (45 mph)
Power output 960 kW (1,290 hp)
Class originally Ea, now EO
Number in class 5
Number Ea 1-5 (original)
EO39-74 (TMS)
Locale originally Otira-Arthur's Pass, now Wellington
First run 1968
Last run 1997
Disposition 3 refurbished, 2 unrefurbished

The NZR Ea class (EO from 1968) were used by New Zealand Railways between 1968 and 1997 on the Otira-Arthur's Pass section of the Midland line in the South Island, through the Otira Tunnel. Following reconditioning, three have been used by KiwiRail's Tranz Metro in Wellington to top and tail Metlink suburban passenger trains as an interim measure before new rolling stock arrives.

Contents

Introduction

The class replaced the Eo class of 1923 on Otira Tunnel duties.

Withdrawal

When the Otira-Arthur's Pass electrification was discontinued in 1997 in favor of dieselisation with modified DX locomotives and upgrading the Otira Tunnel ventilation, the locomotives were withdrawn from service. Two were stored at the Ferrymead Railway and three at Picton.

Reuse in Wellington

In 2007 the three Picton locomotives were transferred to Hutt Workshops in the North Island for refurbishment for use by Tranz Metro on Wellington suburban commuter trains as a short-term solution to increase capacity on the Wellington network before the arrival of the FP class EMUs. The locomotives top and tail six ex-British Rail Mark 2 carriages owned by the Greater Wellington Regional Council and refurbished at the Hillside Workshops. The first such train ran on 8 December 2008. One is kept as a spare to allow maintenance to take place. The Railtrack system locates the other two units at Hutt Workshops in their original livery.

The fate of all units once they are no longer required on suburban duties has yet to be determined, though it is likely that the two ex-Ferrymead units (EO39 & 68) will be returned there. One possible use for the refurbished units is a return to banking duties and replace the two Wellington-based DBR diesel locomotives currently employed in this role, although they would be limited to areas with electrification.

Gallery

Class register

Key: In service Out of service Auckland Transport service Preserved Overhaul Scrapped
Original no. TMS no. Introduced Withdrawn[n 1] Livery[1] Notes
Ea 1 EO39 01968-04 April 1968 01997 1997 NZGR Stored, Hutt Workshops.
Ea 2 EO45 01968-04 April 1968 01997 1997 KiwiRail Wellington suburban service.
Ea 3 EO51 01968-04 April 1968 01997 1997 KiwiRail Wellington suburban service.
Ea 4 EO68 01968-04 April 1968 01997 1997 NZGR Stored, Hutt Workshops.
Ea 5 EO74 01968-04 April 1968 01997 1997 KiwiRail Wellington suburban service.
  1. ^ Withdrawal dates are from Otira service.

References

Citations

  1. ^ "Railtrack". 21 August 2010. http://www.quicktrip.co.nz/rails/railtrack.htm. Retrieved 21 August 2010. 

Books


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