The Great Western Railway (GWR) 9400 Class is a class of 0-6-0 pannier tank steam locomotive, used for shunting and banking duties.
Quick Facts Great Western Railway 9400 class, Type and origin ...
Great Western Railway 9400 class |
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9405 at Paddington in 1947 |
Type and origin |
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Power type | Steam |
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Designer | Frederick Hawksworth |
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Builder | |
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Order number | GWR Lot Nos. 365, 382–387 |
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Serial number | - RSH: 7450–69, 7547–96, 7611–40
- WGB: 2910–2959
- YEC: 2443–72, 2544–53, 2575–84
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Build date | 1947–1956 |
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Total produced | 210 |
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Specifications |
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Configuration:
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• Whyte | 0-6-0PT |
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• UIC | |
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Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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Driver dia. | 4 ft 7+1⁄2 in (1.410 m) |
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Minimum curve | - 5 chains (330 ft; 100 m) normal,
- 4.5 chains (300 ft; 91 m) slow
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Wheelbase | 15 ft 6 in (4.72 m) |
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Length | 33 ft 2 in (10.11 m) over buffers |
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Width | 8 ft 7 in (2.616 m) |
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Height | 12 ft 5+1⁄2 in (3.797 m) |
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Axle load | 19 long tons 5 cwt (43,100 lb or 19.6 t) (21.6 short tons) full |
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Loco weight | 55 long tons 7 cwt (124,000 lb or 56.2 t) (62.0 short tons) full |
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Fuel type | Coal |
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Water cap. | 1,300 imp gal (5,900 L; 1,600 US gal) |
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Firebox: | |
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• Grate area | 17.40 sq ft (1.617 m2) |
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Boiler | GWR Standard No. 10[1] |
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Boiler pressure | 200 lbf/in2 (1.38 MPa) |
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Heating surface: | |
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• Firebox | 101.7 sq ft (9.45 m2) |
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• Tubes | 1,245.7 sq ft (115.73 m2) |
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• Total surface | 1,347 sq ft (125.1 m2) |
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Cylinders | Two, inside |
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Cylinder size | 17+1⁄2 in × 24 in (444 mm × 610 mm) |
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Career |
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Operators | |
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Class | 9400 or 94XX |
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Power class | |
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Numbers | 9400–9499, 8400–8499, 3400–3409 |
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Axle load class | GWR: Red |
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Locale | Western Region |
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Withdrawn | 1959–1965 |
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Preserved | 9400, 9466 |
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Disposition | Two preserved, remainder scrapped |
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Close
The first ten 9400s were the last steam engines built by the GWR. After nationalisation in 1948, another 200 were built by private contractors for British Railways (BR). Most had very short working lives as the duties for which they were designed disappeared through changes in working practices or were taken over by diesel locomotives. Two locomotives survived into preservation, with the oldest of the class, 9400 as part of the National Collection.