Electric multiple unit (Queensland Rail)

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Electric multiple unit
EMU42 at Wacol station in September 2018
Refurbished interior
Manufacturer	Walkers
Built at	Maryborough
Replaced	SX carriages
Constructed	1979–1986
Entered service	17 November 1979
Refurbished	2004 - 2008
Number built	264 carriages
Successor	New Generation Rollingstock
Formation	3 carriage sets
Fleet numbers	01-88
Capacity	248 per 3-carriage set
Operators	Queensland Rail
Lines served	All City network lines except Airport, Gold Coast & Sunshine Coast
Specifications
Train length	72.64 m (238 ft 4 in)
Width	2.72 m (8 ft 11 in)
Height	3.9 m (12 ft 10 in)
Floor height	1.1 m (3 ft 7 in)
Doors	Air operated
Wheel diameter	840 mm (33 in) (new)
Wheelbase	2,500 mm (8 ft 2 in)
Maximum speed	100 km/h (62 mph)
Weight	117.8 t (115.9 long tons; 129.9 short tons)
Traction system	ASEA thyristor–phase-fired controller
Traction motors	8 × 135 kW (181 hp) separately excited DC motor
Power output	1.08 MW (1,450 hp)
Transmission	Axle hung; 97 : 17 gear ratio
Acceleration	0.775 m/s2 (2.54 ft/s2)
Deceleration	1.17 m/s2 (3.8 ft/s2)
Electric system(s)	25 kV 50 Hz AC (nominal) from overhead catenary
Current collector(s)	Pantograph
UIC classification	Bo′Bo′+Bo′Bo′+2′2′
Braking system(s)	Blended regenerative electric and electro-pneumatic
Multiple working	Within type With ICE
Track gauge	1,067 mm (3 ft 6 in)
Notes/references
[1]

The Electric multiple unit (EMU) is a class of electric multiple units manufactured by Walkers at Maryborough for Queensland Rail between 1979 and 1986. They were the first EMUs in Queensland and are progressively being retired from the Queensland Rail Citytrain network.