| NZR C class (1873) |
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| Type and origin |
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| Power type | Steam |
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| Builder | Dübs & Co. (6), Neilson & Co. (10) |
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| Serial number | Dübs 800–804, 885, Neilson 1764–1773 |
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| Build date | 1873–1875 |
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| Total produced | 16 |
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| Specifications |
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Configuration:
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| • Whyte | Originally 0-4-0ST Rebuilt 0-4-2ST |
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| Gauge | 3 ft 6 in (1,067 mm) |
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| Driver dia. | 2 ft 6 in (0.762 m) |
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| Wheelbase | Coupled: 6 ft 0 in (1.83 m), Total: 13 ft 0 in (3.96 m) |
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| Length | 21 ft 2+3⁄4 in (6.47 m) |
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| Adhesive weight | 14.20 long tons (14.43 t; 15.90 short tons) |
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| Loco weight | 15.7 long tons (16.0 t; 17.6 short tons) |
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| Fuel type | Coal |
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| Fuel capacity | 0.45 long tons (0.46 t; 0.50 short tons) |
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| Water cap. | 300 imperial gallons (1,400 L; 360 US gal) |
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| Firebox: | |
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| • Grate area | 7.3 sq ft (0.68 m2) |
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| Boiler pressure | 120–140 lbf/in2 (0.83–0.97 MPa) |
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| Heating surface | 392 sq ft (36.4 m2) |
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| Cylinders | Two, outside |
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| Cylinder size | 9.5 in × 18 in (241 mm × 457 mm) |
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The NZR C class tank locomotives operated on New Zealand's national rail network during its infancy. They are sometimes referred to as the little C class or the original C class to distinguish them from the C class of 1930.