New South Wales AD60 class locomotive

New South Wales AD60 class
6012 at the top of Cowan Bank
Type and origin
Power typeSteam
BuilderBeyer, Peacock & Company
Manchester
Serial number7473–7497, 7528–7549
Build date1952–1954, 1956
Total produced42
Specifications
Configuration:
 • Whyte4-8-4+4-8-4
Gauge1,435 mm (4 ft 8+12 in) standard gauge
Driver dia.4 ft 7 in (1,397 mm)
Length108 ft 7 in (33.096 m)
Adhesive weight282,000 lb (128,000 kg)
later 317,000 lb (144,000 kg)
Loco weight562,000 lb (255,000 kg)
later 582,000 lb (264,000 kg)
Fuel typeCoal
Fuel capacity14 long tons
(14.2 tonnes; 15.7 short tons)
later
18 long tons
(18.3 tonnes; 20.2 short tons)
Firebox:
 • Grate area65 sq ft (6.0 m2)
Boiler pressure200 psi (1.38 MPa)
Heating surface3,030 sq ft (281 m2)
Superheater:
 • Heating area750 sq ft (70 m2)
Cylinders4
Cylinder size19.25 in × 26 in
(489 mm × 660 mm)
later
19.875 in × 26 in
(505 mm × 660 mm)
Valve gearWalschaerts
Performance figures
Tractive effort59,560 lbf (264.9 kN)
later 63,490 lbf (282.4 kN)
Factor of adh.4.73 or 4.99
Career
OperatorsNew South Wales Government Railways
ClassAD60
Number in class42
Numbers6001–6042
First runJuly 1952
Last runMarch 1973
Preserved6029, 6039, 6040, 6042
Disposition4 preserved, 38 scrapped

The New South Wales AD60 class were Beyer-Garratt patent articulated four-cylinder, simple, non-condensing, coal-fired superheated, 4-8-4+4-8-4 heavy goods steam locomotives built by Beyer, Peacock & Company for the New South Wales Government Railways in Australia.