| GWR 2884 Class |
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| Type and origin |
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| Power type | Steam |
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| Designer | Charles Collett |
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| Builder | GWR Swindon Works |
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| Order number | Lots 321, 328, 334, 341, 346 |
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| Build date | 1938–1942 |
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| Total produced | 83 |
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| Specifications |
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Configuration:
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| • Whyte | 2-8-0 |
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| • UIC | 1'D 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 2 in (0.965 m) |
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| Driver dia. | 4 ft 7+1⁄2 in (1.410 m) |
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| Minimum curve | 7 chains (460 ft; 140 m) normal,
6 chains (400 ft; 120 m) slow |
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| Length | 63 ft 2+1⁄4 in (19.26 m) |
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| Width | 8 ft 11 in (2.718 m) |
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| Height | 13 ft 0 in (3.962 m) |
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| Axle load | 17 long tons 0 cwt (38,100 lb or 17.3 t)
(19.0 short tons) full |
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| Adhesive weight | 67 long tons 0 cwt (150,100 lb or 68.1 t)
(75.0 short tons) full |
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| Loco weight | 76 long tons 5 cwt (170,800 lb or 77.5 t)
(85.4 short tons) full |
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| Tender weight | 40 long tons 0 cwt (89,600 lb or 40.6 t)
(44.8 short tons) full |
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| Fuel type | Coal |
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| Water cap. | 3,500 imperial gallons (16,000 L; 4,200 US gal) |
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| Firebox: | |
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| • Grate area | 27.07 sq ft (2.515 m2) |
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| Boiler pressure | 225 psi (1.55 MPa) |
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| Heating surface: | |
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| • Firebox | 154.78 sq ft (14.380 m2) |
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| • Tubes | 1,686.60 sq ft (156.690 m2) |
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Superheater:
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| • Type | 4 or 6 element |
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| • Heating area | 4-element: 191.8 sq ft (17.82 m2),
6-element: 253.38 sq ft (23.540 m2) |
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| Cylinders | Two, outside |
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| Cylinder size | 18+1⁄2 in × 30 in (470 mm × 762 mm) |
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| Valve gear | Stephenson |
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| Valve type | piston valves |
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| Career |
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| Operators | GWR » BR |
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| Class | 2884 |
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| Power class | GWR: E
BR: 8F |
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| Numbers | 2884–2899,3800-3866 : GWR/BR |
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| Axle load class | GWR: Blue |
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| Withdrawn | 1962–1965 |
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| Disposition | Nine preserved, remainder scrapped |
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The Great Western Railway (GWR) 2884 Class is a class of 2-8-0 steam locomotive. They were Collett's development of Churchward's earlier 2800 Class and are sometimes regarded as belonging to that class.
