| Midland Railway 1823 class |
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 1338 at Tewkesbury, Gloucestershire in 1947. |
| Type and origin |
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| Power type | Steam |
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| Designer | S. W. Johnson |
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| Builder | Derby Works |
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| Order number | 763 and 981 |
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| Build date | 1889 (10), 1892 (10) |
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| Total produced | 20 |
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| Specifications |
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Configuration:
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| • Whyte | 0-4-4T |
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| • UIC | B2′ n2t |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
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| Driver dia. | 5 ft 3+1⁄2 in (1.613 m) |
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| Trailing dia. | 3 ft 0+1⁄2 in (0.927 m) |
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| Wheelbase: | |
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| • Engine | - 8 ft 0 in (2.438 m) +
- 9 ft 9 in (2.972 m) +
- 5 ft 0 in (1.524 m)
|
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| Loco weight | 50 long tons 9 cwt (51.3 t) |
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| Fuel type | Coal |
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Boiler:
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| • Model | Midland Railway class C |
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| • Diameter | 4 ft 1 in (1.24 m) |
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| • Tube plates | 10 ft 6 in (3.20 m) |
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| Boiler pressure | 160 lbf/in2 (1.10 MPa) |
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| Heating surface | 1,254 sq ft (116.5 m2) |
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| Cylinders | Two, inside |
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| Cylinder size | 18 in × 26 in (457 mm × 660 mm) |
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The Midland Railway 1823 Class was a class of twenty 0-4-4T steam locomotives. They had the power classification 1P.
