New Zealand DM class electric multiple unit information
Not to be confused with New Zealand DM class locomotive.
New Zealand DM/D class
D2778 awaiting departure from Johnsonville, the terminus of the Johnsonville Line, 17 December 2007.
In service
2 July 1938 – 25 June 2012
Manufacturer
English Electric
Built at
Preston Works, United Kingdom
Constructed
1938-1954
Entered service
July 1938 (36 stock)
December 1946 (42 stock)
August 1949-March 1954 (46 stock)
Refurbished
2005–2007 (Tranz Metro)
Scrapped
1978-1980s (36/42 stock)
2011-2012 (46 stock)
Number built
49
Number scrapped
41
Formation
DM–D (Johnsonville and Melling Lines)
D–DM–D ( Paekākāriki and Hutt Valley Lines)
Fleet numbers
D 2130-2869
DM 147-562
Capacity
124 (two-car units)
194 (three-car units)
Operators
Tranz Metro
Lines served
Johnsonville Line, Melling Line (two-car and three-car units)
Hutt Valley Line (three-car units and occasionally and after displaced from Johnsonville line three two-car units)
Kapiti Line (three-car units and two-car units very occasionally after the 1980s)
Specifications
Car length
19.2 metres (63 ft 0 in)
Width
2.61 metres (8 ft 7 in)
Doors
4
Maximum speed
97 km/h (60 mph)
Weight
43.5 t (42.8 long tons; 48.0 short tons)
Power output
447 kW (599 hp)
Electric system(s)
1,500 V DC overhead
Braking system(s)
Air, handbrakes
Track gauge
1,067 mm (3 ft 6 in)
The New Zealand DM/D class electric multiple unit[a] (also known as English Electrics) were a type of electric multiple units used on the suburban rail network of Wellington, New Zealand. Formed of DM power cars and D trailer cars, the first units were ordered from English Electric in 1936 and introduced on 2 July 1938 operating the electrified Johnsonville Line service. Additional units were ordered in 1942 for the line, and in 1946 as the other Wellington suburban lines were to be electrified.
The units were relegated to peak services and the Johnsonville Line after the arrival of the "Ganz-Mavag" EM/ET units in 1982–83, before finally being replaced by the "Matangi" FP/FT units in 2011–12. The units operated their last revenue service on 25 June 2012, from Wellington to Melling and return. Five complete units (four two-car and one three-car) and six trailer cars have been preserved.
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