New South Wales 47 class locomotive

New South Wales 47 class
4705 at Broadmeadow Locomotive Depot in 1990
Type and origin Power type Diesel-electric Builder A Goninan & Co, Broadmeadow Serial number 31-50 Build date 1972/73 Total produced 20
Specifications Configuration: ​  • UIC Co-Co Gauge 1,435 mm (4 ft 8 1⁄2 in) Wheel diameter 1,016 mm (40.0 in) Length Over : 14.000 m (45 ft 11.18 in), Over coupler pulling faces: 15.270 m (50 ft 1.18 in) Width 2.834 m (9 ft 3.57 in) Height 4.200 m (13 ft 9.35 in) Axle load 14.2 tonnes (14.0 long tons; 15.7 short tons) Loco weight 85.3 tonnes (84.0 long tons; 94.0 short tons) Fuel type Diesel Fuel capacity 3,300 l (726 imp gal; 872 US gal) Lubricant cap. 416 l (92 imp gal; 110 US gal) Coolant cap. 600 l (132 imp gal; 159 US gal) Sandbox cap. 0.44 m3 (16 cu ft) Prime mover Caterpillar 16-D399TA RPM range 650-1300 Engine type Four-stroke 6 Cylinder diesel Alternator Hitachi HI508 AR Traction motors Hitachi HS366 AR, 6 of Cylinders 6 Cylinder size 158.75 mm × 203 mm (6.25 in × 7.99 in)
Performance figures Maximum speed 113 km/h (70 mph) Power output Gross: 840 kW (1,126 hp), For traction: 746 kW (1,000 hp) Tractive effort Continuous: 171.07 kN (38,458 lbf) at 11.8 km/h (7.3 mph)
Career Operators Public Transport Commission Number in class 20 Numbers 4701-4720 First run 22 September 1972 Preserved 4705, 4706 Current owner Lachlan Valley Railway Disposition 10 Scrapped, 4 Operational, 3 Stored, 1 Preserved, 1 Static, 1 Under Restoration

The 47 class are a class of diesel-electric locomotives built by A Goninan & Co for the Public Transport Commission in 1972/73.

Twenty were ordered from A Goninan & Co with the first delivered in July 1972. After undergoing acceptance trails the first entered service in September 1972 with the last delivered in May 1973. Originally intended for use hauling coal services in the Hunter Valley, they were allocated to Bathurst to operate services in the state's west from Lithgow to Euabalong West, Bourke and Cootamundra and all branches in between. Their excellent ride qualities saw them find favour with crews, although they did suffer from overheating with one destroyed by fire in April 1974 and another in a collision in March 1977.

In January 1981 it was decided to transfer the class to Broadmeadow to take up the duties they had originally been built for being used to haul coal services from Belmont, Dudley, Lambton and Pelton. They also saw use on services to Werris Creek, Tamworth and Moree. They continued to return to Bathurst Workshops for overhaul. A downturn in traffic as a result of a drought saw them placed in store at Parkes in 1982/83 before all were reactivated in 1984 resuming duties out of Broadmeadow.