| GWR 6800 Class 6880 Betton Grange |
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Betton Grange in January 2025. |
| Type and origin |
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| Power type | Steam |
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| Designer | C.B. Collett (original designer) |
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| Builder | 6800 Society |
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| Build date | 1998–2024 |
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| Specifications |
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Configuration:
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| • Whyte | 4-6-0 |
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| • UIC | 2'C h |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
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| Leading dia. | 3 ft 0 in (0.914 m) |
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| Driver dia. | 5 ft 8 in (1.727 m) |
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| Minimum curve | 8 chains (530 ft; 160 m) normal, 7 chains (460 ft; 140 m) slow |
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| Length | 63 ft 0+1⁄4 in (19.21 m) |
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| Width | 8 ft 11+1⁄4 in (2.72 m) |
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| Height | 13 ft 0 in (3.96 m) |
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| Axle load | 18 long tons 8 cwt (41,200 lb or 18.7 t) |
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| Adhesive weight | 55 long tons 2 cwt (123,400 lb or 56 t) |
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| Loco weight | 74 long tons 0 cwt (165,800 lb or 75.2 t) full |
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| Tender weight | 40 long tons 0 cwt (89,600 lb or 40.6 t) full |
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| Fuel type | Coal |
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| Fuel capacity | 7 long tons 0 cwt (15,700 lb or 7.1 t) |
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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 | 27.07 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 and flues | 1,686.60 sq ft (156.690 m2) |
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| • Total surface | 2,461.4 sq ft (228.67 m2) |
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Superheater:
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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 | 18.5 in × 30 in (470 mm × 762 mm) |
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| Career |
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| Operators | |
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| Power class | GWR: D; BR: 5MT |
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| Numbers | 6880 |
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| Official name | Betton Grange |
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| Axle load class | GWR: Red |
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| Disposition | Operational, currently based at the Llangollen Railway |
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GWR 6800 Class No. 6880 Betton Grange is a steam locomotive built between 1998 and 2024 as a "new-build" project, originally based on the Llangollen Railway in Denbighshire, Wales, then subsequently at Tyseley Locomotive Works. Described on the project's website as "building the 81st Grange", the project started in 1998.
The locomotive was constructed because all of the original GWR 6800 Class Grange locomotives were withdrawn for scrap by the end of 1965. The locomotive is constructed from an assemblage of original GWR and newly manufactured components.
The locomotive's completion date was plagued by a number of delays. Initially expected to be operational in 2013, the locomotive steamed for the first time in April 2024 after more than 25 years of work.