In July 1984, a joint venture of Clyde Engineering and Walkers Limited was awarded a contract to build 70 3500/3600 class electric locomotives with ASEA supplying the electrical equipment. These were ordered to operate coal trains on the Blackwater and Goonyella railway lines that were in the process of being electrified.[1] The contract was later extended to 80.
The bodies being built and assembled at Walkers's Maryborough factory with Clyde Engineering responsible for some of the electrical equipment and commissioning the locomotives.[2]
Following the decision to electrify the North Coast line from Brisbane to Rockhampton, the last 30 were built to a modified design for passenger and general freight use, and delivered as the 3900 class. They received modified bodies to allow them to pass through Brisbane's tunnels and received higher gearing to allow them to operate at 100 km/h (62 mph).[2][3]
3550 class
With an increased need for locomotives on the Central Queensland coal lines, 19 were converted to 3550 class locomotives.[4]
References
^Oberg, Leon (2010). Locomotives of Australia 1850s-2010s. Kenthurst: Rosenberg Publishing. pp. 403–405. ISBN9781921719011.
^ abClark, Peter (2012). An Australian Locomotive Guide. Rosenberg Publishing. pp. 353–354. ISBN9781921719554.
^Walkers/ABB 3900 Class Queensland's Railways Interest Group
queensland, railways, 3900, class, 3900, class, class, electric, locomotives, built, walkers, limited, maryborough, queensland, rail, between, 1988, 1990, queensland, rail, 3900, class3917, another, haul, northbound, freight, train, north, coast, line, 1989, t. The 3900 class are a class of electric locomotives built by Walkers Limited Maryborough for Queensland Rail between 1988 and 1990 Queensland Rail 3900 class3917 and another haul a northbound freight train on the North Coast line in 1989 Type and originPower typeElectricBuilderWalkers Limited MaryboroughModelJA39 3BBuild date1988 1990Total produced30Number rebuilt19SpecificationsConfiguration UICBo Bo BoGauge1 067 mm 3 ft 6 in Length20 02 m 65 ft 8 in Width2 8 m 9 ft 2 in Height3 89 m 12 ft 9 in Loco weight109 8 t 108 1 long tons 121 0 short tons Electric system s25 kV AC overhead linesCurrent pickup s PantographTraction motorsASEATrain brakesDavies amp Metcalfe P85Performance figuresMaximum speed100 km h 62 mph Tractive effort2 890 kW 3 880 hp CareerOperatorsQueensland RailClass3900Number in class30Numbers3901 3930Delivered1988Current ownerAurizonHistory EditIn July 1984 a joint venture of Clyde Engineering and Walkers Limited was awarded a contract to build 70 3500 3600 class electric locomotives with ASEA supplying the electrical equipment These were ordered to operate coal trains on the Blackwater and Goonyella railway lines that were in the process of being electrified 1 The contract was later extended to 80 The bodies being built and assembled at Walkers s Maryborough factory with Clyde Engineering responsible for some of the electrical equipment and commissioning the locomotives 2 Following the decision to electrify the North Coast line from Brisbane to Rockhampton the last 30 were built to a modified design for passenger and general freight use and delivered as the 3900 class They received modified bodies to allow them to pass through Brisbane s tunnels and received higher gearing to allow them to operate at 100 km h 62 mph 2 3 3550 class EditWith an increased need for locomotives on the Central Queensland coal lines 19 were converted to 3550 class locomotives 4 References Edit Oberg Leon 2010 Locomotives of Australia 1850s 2010s Kenthurst Rosenberg Publishing pp 403 405 ISBN 9781921719011 a b Clark Peter 2012 An Australian Locomotive Guide Rosenberg Publishing pp 353 354 ISBN 9781921719554 Walkers ABB 3900 Class Queensland s Railways Interest Group 3500 3600 3551 Class Railpage Retrieved from https en wikipedia org w index php title Queensland Railways 3900 class amp oldid 963515646, wikipedia, wiki, book, books, library,
