| LMS Hughes Crab |
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| Type and origin |
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| Power type | Steam |
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| Designer | George Hughes |
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| Builder | |
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| Build date | 1926–1932 |
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| Total produced | 245 |
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| Specifications |
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Configuration:
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| • Whyte | 2-6-0 |
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| • UIC | 1′C h2 |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Leading dia. | 3 ft 6+1⁄2 in (1.080 m) |
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| Driver dia. | 5 ft 6 in (1.676 m) |
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| Length | 59 ft 3+7⁄8 in (18.082 m) |
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| Loco weight | 66 long tons (67 t; 74 short tons) |
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| Fuel type | Coal |
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| Fuel capacity | 5 long tons (5.1 t; 5.6 short tons) |
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| Water cap. | 3,500 imp gal (16,000 L; 4,200 US gal) |
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| Firebox: | |
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| • Grate area | 27.5 sq ft (2.55 m2) |
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| Boiler | LMS type G9HS |
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| Boiler pressure | 180 lbf/in2 (1.24 MPa) |
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| Heating surface: | |
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| • Firebox | 160 sq ft (15 m2) |
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| • Tubes | 1,361 sq ft (126.4 m2), later 1,345 sq ft (125.0 m2) |
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Superheater:
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| • Heating area | 307 sq ft (28.5 m2) |
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| Cylinders | Two, outside |
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| Cylinder size | 21 in × 26 in (533 mm × 660 mm) |
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| Career |
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| Operators | |
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| Power class | LMS: 4 later 5P4F, later 5P5F, 6P5F, later 5MT |
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| Numbers | LMS 13000–13244, renumbered 2700–2944 in 1934, BR 42700–42944 |
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| Nicknames | Crab |
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| Withdrawn | 1961–1967 |
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| Disposition | 3 preserved, remainder scrapped |
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The London, Midland and Scottish Railway (LMS) Hughes Crab or Horwich Mogul is a class of mixed-traffic 2-6-0 steam locomotive built between 1926 and 1932. They are noted for their appearance with large steeply-angled cylinders to accommodate a restricted loading gauge.
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