| GWR 2221 "County Tank" Class |
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2221 in 1907 |
| Type and origin |
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| Power type | Steam |
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| Designer | George Jackson Churchward |
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| Builder | Swindon Works |
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| Order number | Lots 151, 175, 188 |
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| Serial number | 2076–2085, 2320–2329, 2466–2475 |
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| Build date | 1905–1909, 1912 |
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| Total produced | 30 |
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| Specifications |
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Configuration:
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| • Whyte | 4-4-2T |
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| • UIC | 2′B1 ht |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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| Driver dia. | 6 ft 8+1⁄2 in (2.045 m) |
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| Fuel type | Coal |
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| Firebox: | |
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| • Grate area | 20.35 sq ft (1.89 m2) |
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Boiler:
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| • Type | GWR Standard No. 2 |
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| Boiler pressure | 200 lbf/in2 (1.38 MPa) |
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| Heating surface: | |
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| • Firebox | 121.31 sq ft (11.27 m2) |
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| • Tubes and flues | 1,396.58 sq ft (129.75 m2) |
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| • Total surface | 1,517.89 sq ft (141.02 m2) |
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Superheater:
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| • Heating area | 184.75 sq ft (17.164 m2) |
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| Cylinders | Two, outside |
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| Cylinder size | 18 in × 30 in (457 mm × 762 mm) |
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| Career |
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| Operators | Great Western Railway |
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| Numbers | 2221–2250 |
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| Withdrawn | 1931–1934 |
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| Disposition | All scrapped |
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The Great Western Railway (GWR) 2221 Class or County Tank was a class of 4-4-2T steam locomotive, effectively a tank engine version of the 3800 "County" Class 4-4-0 tender locomotives. The two classes had different boilers, standard no 4 for the tender locomotive, and the smaller (by about 350 sq ft or 33 m2) standard no 2 for the tank. 2230 was fitted with the larger boiler when new, but this was unsuccessful and was quickly altered.
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