Class of four-cylinder Garratt locomotives
New South Wales AD60 class |
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Specifications |
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Configuration:
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• Whyte | 4-8-4+4-8-4 |
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Gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
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Driver dia. | 4 ft 7 in (1,397 mm) |
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Length | 108 ft 7 in (33.096 m) |
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Adhesive weight | 282,000 lb (128,000 kg) later 317,000 lb (144,000 kg) |
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Loco weight | 562,000 lb (255,000 kg) later 582,000 lb (264,000 kg) |
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Fuel type | Coal |
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Fuel capacity | 14 long tons (14.2 tonnes; 15.7 short tons) later 18 long tons (18.3 tonnes; 20.2 short tons) |
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Firebox: | |
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• Grate area | 65 sq ft (6.0 m2) |
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Boiler pressure | 200 psi (1.38 MPa) |
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Heating surface | 3,030 sq ft (281 m2) |
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Superheater:
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• Heating area | 750 sq ft (70 m2) |
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Cylinders | 4 |
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Cylinder size | 19.25 in × 26 in (489 mm × 660 mm) later 19.875 in × 26 in (505 mm × 660 mm) |
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Valve gear | Walschaerts |
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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.