LNER Thompson/Peppercorn
Class K1 |
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Preserved loco No. 62005 (as "2005") at Carnforth |
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| Specifications |
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Configuration:
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| • Whyte | 2-6-0 |
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| • UIC | 1′C h2 |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
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| Leading dia. | 3 ft 2 in (0.965 m) |
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| Driver dia. | 5 ft 2 in (1.575 m) |
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| Length | 59 ft 10 in (18.24 m) over buffers |
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| Loco weight | 66 long tons (67 t) |
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| Tender weight | 52 long tons (53 t) |
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| Fuel type | Coal |
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| Fuel capacity | 7.5 long tons (7.6 t) |
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| Water cap. | 4,200 imperial gallons (19,000 L; 5,000 US gal) |
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| Firebox: | |
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| • Grate area | 27.9 sq ft (2.59 m2) |
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| Boiler | LNER diagram 116 |
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| Boiler pressure | 225 lbf/in2 (1.55 MPa) |
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| Heating surface: | |
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| • Firebox | 168 sq ft (15.6 m2) |
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| • Tubes | 858 sq ft (79.7 m2) |
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| • Flues | 382 sq ft (35.5 m2) |
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| • Total surface | 1,408 sq ft (130.8 m2) |
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Superheater:
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| • Heating area | 300 sq ft (28 m2) |
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| Cylinders | 2, outside |
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| Cylinder size | 20 in × 26 in (508 mm × 660 mm) |
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The London and North Eastern Railway (LNER) Class K1 is a type of 2-6-0 (mogul) steam locomotive designed by Edward Thompson. Thompson preferred a simple two-cylinder design instead of his predecessor Nigel Gresley's three-cylinder one. The seventy K1s were intended to be split between the North Eastern Region of British Railways and the Eastern Region of British Railways.
