| New South Wales Z27 class |
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Class Z27 locomotive |
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| Specifications |
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Configuration:
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| • Whyte | 2-6-0 |
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| • UIC | 1′Cn |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Driver dia. | 4 ft 0+1⁄2 in (1,232 mm) |
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| Length | 54 ft 4+7⁄8 in (16.58 m) |
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| Axle load | 12 long tons 15 cwt (28,600 lb or 13 t) |
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| Adhesive weight | 36 long tons 8 cwt (81,500 lb or 37 t) |
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| Loco weight | 45 long tons 2 cwt (101,000 lb or 45.8 t) |
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| Total weight | 80 long tons 7 cwt (180,000 lb or 81.6 t) |
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| Fuel type | Coal |
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| Fuel capacity | New: 5 long tons 10 cwt (12,300 lb or 5.6 t) |
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| Water cap. | New: 2,150 imperial gallons (9,800 L; 2,580 US gal) |
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| Firebox: | |
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| • Grate area | 21 sq ft (2.0 m2) |
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| Boiler pressure | New: 160 psi (1.10 MPa),
Dec. 1921: 150 psi (1.03 MPa) |
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| Heating surface | 1,240 sq ft (115 m2) |
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| Superheater | None |
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| Cylinders | Two, outside |
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| Cylinder size | 18 in × 24 in (457 mm × 610 mm) |
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| Valve gear | Walschaerts |
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| Valve type | Slide valves |
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The Z27 class (formerly G.1204 class) is a class of steam locomotives built by Hunslet Engine Company for the New South Wales Government Railways of Australia.
