The NZR WG class was a development of the preceding WF class of all purpose tank locomotive. Later in their careers most (14) were rebuilt as WW class. The locomotives were designed by A. L. Beattie, who described them as a "large tank locomotive."
Quick Facts G class, Type and origin ...
NZR WG class |
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Type and origin |
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Power type | Steam |
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Builder | NZGR Hillside |
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Build date | 1910-1912 |
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Total produced | 20 |
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Specifications |
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Configuration:
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• Whyte | 4-6-4T |
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Gauge | 3 ft 6 in (1,067 mm) |
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Driver dia. | 45 in (1.143 m) |
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Adhesive weight | 29.7 long tons (30.2 t) |
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Loco weight | 50.5 long tons (51.3 tonnes; 56.6 short tons) |
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Fuel type | Coal |
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Firebox: | |
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• Grate area | 16.9 sq ft (1.57 m2) |
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Boiler pressure | 200 lbf/in2 (1,379 kPa) |
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Heating surface | 738 sq ft (68.6 m2) |
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Cylinders | Two, outside |
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Cylinder size | 14 in × 22 in (356 mm × 559 mm) |
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Career |
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Operators | NZR |
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Locale | All of New Zealand |
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