Preserved 4-6-2 British steam locomotive
| BR 70000 Britannia |
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| Specifications |
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Configuration:
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| • Whyte | 4-6-2 |
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| • UIC | 2′C1′h2 |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Driver dia. | 6 ft 2 in (1.880 m) |
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| Trailing dia. | 3 ft 3+1⁄2 in (1.003 m) |
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| Length | 68 ft 9 in (20.96 m) |
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| Width | 8 ft 8+3⁄4 in (2.66 m) |
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| Height | 13 ft 0+1⁄2 in (3.98 m)7004 |
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| Axle load | 20.50 long tons (20.83 t; 22.96 short tons) |
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| Adhesive weight | 61.50 long tons (62.49 t; 68.88 short tons) |
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| Loco weight | 94.00 long tons (95.51 t; 105.28 short tons) |
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| Tender weight | 49.15 long tons (49.94 t; 55.05 short tons) |
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| Tender type | BR1 |
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| Fuel type | coal |
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| Fuel capacity | 7.0 long tons (7.1 t; 7.8 short tons) |
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| Water cap. | 4,250 imp gal (19,300 L; 5,100 US gal) |
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| Firebox: | |
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| • Grate area | 42 sq ft (3.9 m2) |
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| Boiler | BR1 |
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| Boiler pressure | 250 psi (1.72 MPa) |
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| Heating surface: | |
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| • Firebox | 210 sq ft (20 m2) |
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| • Tubes and flues | 2,264 sq ft (210.3 m2) |
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Superheater:
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| • Heating area | 718 sq ft (66.7 m2) |
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| Cylinders | Two, outside |
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| Cylinder size | 20 in × 28 in (508 mm × 711 mm) |
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| Official Website - Britannia on Icons Of Steam |
British Railways Standard Class 7 'Britannia Class' No. 70000 Britannia is a preserved steam locomotive, owned by the Royal Scot Locomotive and General Trust.
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