Queensland Railways 3900 class

Type and origin
Type and origin
Power type	Electric
Builder	Walkers Limited, Maryborough
Model	JA39-3B
Build date	1988–1990
Total produced	30
Number rebuilt	19

Queensland Rail 3900 class
Queensland Rail 3900 class
	3917 and another haul a northbound freight train on the North Coast line in 1989.
Power type
Type and origin
Power type	Electric
Builder	Walkers Limited, Maryborough
Model	JA39-3B
Build date	1988–1990
Total produced	30
Number rebuilt	19
Configuration:;
Specifications
Configuration:;
• UIC	Bo-Bo-Bo
Gauge	1,067 mm (3 ft 6 in)
Length	20.02 m (65 ft 8 in)
Width	2.8 m (9 ft 2 in)
Height	3.89 m (12 ft 9 in)
Loco weight	109.8 t (108.1 long tons; 121.0 short tons)
Electric system/s	25 kV AC overhead lines
Current pickup(s)	Pantograph
Traction motors	ASEA
Train brakes	Davies & Metcalfe P85
Maximum speed
Performance figures
Maximum speed	100 km/h (62 mph)
Tractive effort	2,890 kW (3,880 hp)
Operators
Career
Operators	Queensland Rail
Class	3900
Number in class	30
Numbers	3901–3930
Delivered	1988
Current owner	Aurizon

The 3900 class are a class of electric locomotives built by Walkers Limited, Maryborough for Queensland Rail between 1988 and 1990.

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