The Metropolitan Railway H Class consisted of eight 4-4-4T steam locomotives, numbered 103 to 110.[1] They were built by Kerr, Stuart & Co of Stoke on Trent in 1920 at a cost of £11,575 each.[2] A "notable addition" to the Metropolitan Railway,[3] these locomotives were purchased for the express passenger trains on the mainline between Harrow (later Rickmansworth)—the change point from electric locomotives—and Aylesbury or Verney Junction.
Quick Facts Metropolitan Railway H Class LNER Class H2, Type and origin ...
Metropolitan Railway H Class LNER Class H2 |
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Type and origin |
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Power type | Steam |
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Designer | Charles Jones |
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Builder | Kerr Stuart |
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Build date | 1920–1921 |
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Total produced | 8 |
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Specifications |
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Configuration:
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• Whyte | 4-4-4T |
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• UIC | 2'B2'ht |
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Gauge | 4 ft 8+1⁄2 in (1,435 mm) standard gauge |
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Leading dia. | 36 in (914 mm) |
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Driver dia. | 69 in (1,753 mm) |
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Trailing dia. | 36 in (914 mm) |
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Wheelbase | 33.5 ft (10.2 m) |
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Length | 41 ft 10+1⁄2 in (12.764 m) |
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Loco weight | 78.25 long tons (79.51 t; 87.64 short tons) |
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Fuel type | Coal |
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Fuel capacity | 4.00 long tons (4.06 t; 4.48 short tons) |
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Water cap. | 2,000 imp gal (9,100 L; 2,400 US gal) |
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Firebox: | |
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• Grate area | 21.4 sq ft (1.99 m2) |
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Boiler pressure | 160 psi (1.1 MPa) |
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Heating surface: | |
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• Firebox | 132 sq ft (12.3 m2) |
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• Tubes | 744 sq ft (69.1 m2) |
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• Flues | 281 sq ft (26.1 m2) |
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Superheater:
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• Heating area | 164 sq ft (15.2 m2) |
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Cylinders | Two, outside |
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Cylinder size | 19 in × 26 in (483 mm × 660 mm) |
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