New South Wales D59 class locomotive

New South Wales D59 class
5910 at the New South Wales Railway Museum, Thirlmere
Type and origin
Power typeSteam
BuilderBaldwin-Lima-Hamilton
Philadelphia
Serial number75564–75583
Build dateAugust 1952-March 1953
Total produced20
Specifications
Configuration:
 • Whyte2-8-2
 • UIC1'D1'h
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Driver dia.5 ft 0 in (1,524 mm)
Adhesive weight65 t
(64.0 long tons; 71.7 short tons)
Loco weight91 t
(89.6 long tons; 100.3 short tons)
Fuel typeOil, later coal
Fuel capacity10,800 litres (2,400 imp gal; 2,900 US gal) (oil)
11 t
(10.8 long tons; 12.1 short tons) (coal)
Water cap.24,750 litres (5,440 imp gal; 6,540 US gal)
Firebox:
 • Grate area47 sq ft (4.4 m2)
Boiler pressure1,379 kPa (200.0 psi)
Heating surface2,165 sq ft (201.1 m2)
Superheater:
 • Heating area625 sq ft (58.1 m2)
CylindersTwo, outside
Cylinder size21 in × 28 in
(533.4 mm × 711.2 mm)
Valve gearWalscharts
Performance figures
Tractive effort34,986 lbf (155.6 kN)
Factor of adh.4.09
Career
OperatorsNew South Wales Government Railways
ClassD59
Numbers5901–5920
Disposition5 preserved, 15 scrapped

The 59 class is a class of steam locomotive built by Baldwin-Lima-Hamilton Corporation for the New South Wales Government Railways of Australia.