| 3820 |
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| Specifications |
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Configuration:
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| • Whyte | 4-6-2 |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
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| Driver dia. | 5 ft 9 in (1,753 mm) |
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| Wheelbase | 65 ft 7+1⁄8 in (19.99 m) |
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| Total weight | 201 long tons
(225.1 short tons; 204.2 t)
204 long tons
(228.5 short tons; 207.3 t) when in steam |
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| Fuel type | Coal |
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| Fuel capacity | 14 long tons
(15.68 short tons; 14.22 t) |
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| Water cap. | 8,100 imp gal
(37,000 L; 9,700 US gal) |
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| Firebox: | |
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| • Grate area | 47 sq ft (4.4 m2) |
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| Boiler pressure | 245 lbf/in2 (1.69 MPa) |
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| Heating surface: | |
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| • Tubes | 142 tubes, 2+1⁄4 in (57.2 mm) dia each |
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| • Flues | 36 flues, 5+1⁄2 in (139.7 mm) dia each |
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| • Total surface | 3,367.79 sq ft (312.878 m2) |
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| Superheater | 36 element |
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| Cylinders | 2 |
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| Cylinder size | 21.5 in × 26 in
(546 mm × 660 mm) |
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| Valve gear | Walschaerts |
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3820 is a 4-6-2 steam locomotive operated by the New South Wales Government Railways between 1947 and 1970. It has been preserved by the NSW Rail Museum, Thirlmere.
