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New South Wales 40 class locomotive

New South Wales 40 class
Arhs 4019 wondabyne.jpg
Two 40 class head north through Wondabyne
Type and origin
Power type Diesel-electric
Builder Montreal Locomotive Works, Canada
Serial number 77732–77751
Model ALCO RSC-3
Build date 1951/52
Total produced 20
Specifications
Configuration:
 • UIC (A1A)(A1A)
Gauge 4 ft 8 12 in (1,435 mm)
Wheel diameter 40 in (1,016 mm)
Length Over `:
52 ft 0 in (15.85 m),
Over coupler pulling faces:
56 ft 7 14 in (17.25 m)
Width 9 ft 11 18 in (3.03 m)
Height 14 ft 0 58 in (4.28 m)
Axle load 18 long tons 10 cwt (41,400 lb or 18.8 t)
Loco weight 111 long tons 0 cwt (248,600 lb or 112.8 t)
Fuel type Diesel
Fuel capacity 1,200 imp gal (5,500 l; 1,400 US gal)
Lubricant cap. 164 imp gal (750 l; 197 US gal)
Coolant cap. 217 imp gal (990 l; 261 US gal)
Sandbox cap. 28 cu ft (0.79 m3)
Prime mover Alco 12-244
RPM range 350-1000
Aspiration Turbocharged
Generator General Electric 5GT 581 PA2
Traction motors General Electric 753
Cylinders V12
Cylinder size 9 in × 10.5 in (229 mm × 267 mm)
Performance figures
Maximum speed 75 mph (121 km/h)
Power output Gross: 1,750 hp (1,305 kW),
For traction: 1,650 hp (1,230 kW)
Tractive effort Continuous:
46,000 lbf (204.62 kN)
at 11 mph (18 km/h)
Career
Operators New South Wales Government Railways
Number in class 20
Numbers 4001-4020
Nicknames Submarines
First run 30 November 1951
Retired December 1971
Preserved 4001, 4002, 4006
Disposition 3 preserved, 17 scrapped
Type and origin
Power type Diesel-electric
Builder Montreal Locomotive Works, Canada
Serial number 77732–77751
Model ALCO RSC-3
Build date 1951/52
Total produced 20
Specifications
Configuration:
 • UIC (A1A)(A1A)
Gauge 4 ft 8 12 in (1,435 mm)
Wheel diameter 40 in (1,016 mm)
Length Over `:
52 ft 0 in (15.85 m),
Over coupler pulling faces:
56 ft 7 14 in (17.25 m)
Width 9 ft 11 18 in (3.03 m)
Height 14 ft 0 58 in (4.28 m)
Axle load 18 long tons 10 cwt (41,400 lb or 18.8 t)
Loco weight 111 long tons 0 cwt (248,600 lb or 112.8 t)
Fuel type Diesel
Fuel capacity 1,200 imp gal (5,500 l; 1,400 US gal)
Lubricant cap. 164 imp gal (750 l; 197 US gal)
Coolant cap. 217 imp gal (990 l; 261 US gal)
Sandbox cap. 28 cu ft (0.79 m3)
Prime mover Alco 12-244
RPM range 350-1000
Aspiration Turbocharged
Generator General Electric 5GT 581 PA2
Traction motors General Electric 753
Cylinders V12
Cylinder size 9 in × 10.5 in (229 mm × 267 mm)
Performance figures
Maximum speed 75 mph (121 km/h)
Power output Gross: 1,750 hp (1,305 kW),
For traction: 1,650 hp (1,230 kW)
Tractive effort Continuous:
46,000 lbf (204.62 kN)
at 11 mph (18 km/h)
Career
Operators New South Wales Government Railways
Number in class 20
Numbers 4001-4020
Nicknames Submarines
First run 30 November 1951
Retired December 1971
Preserved 4001, 4002, 4006
Disposition 3 preserved, 17 scrapped

The 40 class were a class of diesel locomotives built by Montreal Locomotive Works, Canada for the New South Wales Government Railways in 1951/52.

The 40 class were the first mainline diesel electric locomotives to be built for the New South Wales Government Railways. Built by the Montreal Locomotive Works in 1951/52, they were based on the ALCO RSC-3 design.

There were subtle deviations from the standard RSC-3 built by the American Locomotive Company. These included a cab that angled inwards below the cab windows to reduce the width of the locomotive at the eaves of the cab roof, and placement of the handrails on the car body rather than the standard walkway arrangement.

They were originally used on heavy freight services from Sydney to Broadmeadow and later on North Coast services to Brisbane and Main South line services to Albury. All were delivered in grey undercoat and painted in verdant green at Eveleigh Carriage Workshops. For the 1954 Royal Tour of Queen Elizabeth II 4001 and 4002 were repainted blue. In the 1960s all were repainted Indian red.

With major electrical work required and their lack of power compared to other diesels, the 40 class were withdrawn from May 1968 with the last being taken out of service in December 1971. Some had parts recycled in to the new build 442 class locomotives.

The New South Wales Rail Transport Museum preserved 4001. It was returned to traffic in October 2010 painted in the blue livery it received in 1954 to haul the Royal Train.Robe River Iron Associates purchased 4002 and 4006 for use on construction trains and later as shunters in the Pilbara region of Western Australia where they were renumbered 9405 and 9401. These were withdrawn in 1979 with 4002 donated to the Pilbara Railways Historical Society and returned to working order while 4006 was donated to the Wickham Lions Club and placed on a plinth at the tourist information bay.


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