NZR EO class (1923)


NZR EO class (1923)
NZR EO class (1923)
Eo 3 running around a train at the Ferrymead Heritage Park.
Power type Electric
Builder English Electric
Dick Kerr Works, Preston, United Kingdom
Build date 1923
UIC classification Bo-Bo
Gauge 3 ft 6 in (1,067 mm)
Length 11.7 metres (38 ft 5 in)
Weight on drivers 50.0 tonnes (49.2 long tons; 55.1 short tons)
Locomotive weight 50.0 tonnes (49.2 long tons; 55.1 short tons)
Electric system 1500 V DC
Current collection
method
Pantograph
Traction motors 4
Top speed 64 km/h (40 mph)
Power output 510 kW (680 hp)
Tractive effort 63 kN (14,000 lbf)
Class EO
Number in class 5
Number 2 - 6
Locale Midland Line between Otira and Arthur's Pass
First run 1923
Last run 1968
Scrapped 1969
Disposition 4 scrapped
1 preserved

The New Zealand Railways EO class of 1923 were electric locomotives used on the steep Otira to Arthur's Pass section of the Midland Line. They were primarily for pulling trains through the 8.5 km Otira Tunnel to avoid the buildup of steam, smoke and soot.

Contents

Introduction

When the Otira tunnel was being built, steam locomotives were not considered for use in the tunnel, because smoke would build up in the tunnel and be difficult to clear. Tenders were received from English Electric, and a company in New York. Due to the economic situation at the time, the tender was given to English Electric[citation needed]. And so on the 10 April 1923, numbered EO 2 to EO 6 (1 was the Class E battery electric loco built in 1922.)

They were later reclassified EO to avoid confusion with the EC class locomotives.

Service

The locomotives coped well in service, and from 1942 it became standard practice to run three locomotives together with only two pantographs up, and have their pantographs linked by jumper cables. This was deemed dangerous however, and soon each locomotive ran with its own pantograph up. This often resulted in heavy sparking. Once it became normal to run three locomotives together, they were altered in 1940 to a single cab design.

Another view of EO 3

Replacement and preservation

There were replaced in April 1968 by the EA class locomotives. The EA class were later redesignated as EO class (of 1968).

EO3 was preserved at the Ferrymead Railway. There is also a scale model of EO3 in Nelson, New Zealand. It is 7 1/4 inch gauge, and is capable of pulling about six passengers with the driver.

See also

External links

References

  • Pasrsons, David, New Zealand Railway Motive Power 2002, (2002), Chapter 1, ISBN 0-908573-78-2

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • NZR WAB class — WAB 794 on its first excursion after restoration, with the Capital Connection rolling stock. Photo by Joseph Christianson Power type Steam Builder NZR …   Wikipedia

  • NZR JA class — JA 1271 with excursion consist climbing the Opapa incline. Photo by Joseph Christianson Power type Steam Builder NZR Hillside Workshops …   Wikipedia

  • NZR KA class — A streamlined KA class locomotive Power type Steam Builder NZR Hutt Workshops Build date 1939 1945, 1950 …   Wikipedia

  • NZR K class (1932) — K900 on static display at MOTAT. Photo: Hayden Booth Power type Steam Builder NZR Hutt Workshops Build date 1932 1936 …   Wikipedia

  • NZR DSC class — DSC class locomotive 2693 at Dunedin Power type Diesel electric Builder British Thomson Houston (18), NZR Hillside Workshops and Addington Workshops (52) …   Wikipedia

  • NZR TR class — TR 156 at Ferrymead Power type Diesel Mechanical/Hydraulic Builder Drewry Car Co (29), A G Price (39), W G Bagnall (7), Hitachi (6) …   Wikipedia

  • NZR AB class — Preserved AB 778 hauling the Kingston Flyer Power type Steam Builder NZGR Addington Workshops (38) …   Wikipedia

  • NZR KB class — Power type Steam Builder NZR Hillside Workshops, Dunedin Build date 1939 Configuration 4 8 4 Gauge 3 ft 6 in (1,067 mm) Cape gauge Whe …   Wikipedia

  • NZR DJ class — DJ3107 Power type Diesel electric Builder Mitsubishi Heavy Industries, Japan Build date 1968 1969 …   Wikipedia

  • NZR V class — A NZR V class locomotive (WMR No. 7) Power type Steam Builder Nasmyth, Wilson and Company, Manchester …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.