The NER Class W was a class of ten 4-6-0T locomotives built by the North Eastern Railway at their Gateshead Works between 1907 and 1908. They were all rebuilt as Class W1 4-6-2T locomotives between 1914 and 1917.
Power typeSteam
Power typeSteam
Quick facts Type and origin, Power type ...
| NER Class W |
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| Specifications |
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Configuration:
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| • Whyte | 4-6-0T |
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| • UIC | 2′C n2t |
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| Gauge | 4 ft 8+1⁄2 in (1,435 mm) |
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| Wheelbase | 26 ft 3 in (8.001 m) |
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| Length | 40 ft 8+1⁄2 in (12.408 m) |
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| Adhesive weight | 52 long tons (53 t; 58 short tons) |
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| Loco weight | 69.85 long tons (70.97 t; 78.23 short tons) |
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| Fuel type | Coal |
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| Fuel capacity | 2.25 long tons (2.29 t; 2.52 short tons) |
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| Water cap. | 1,500 imp gal (6,800 L; 1,800 US gal) |
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| Firebox: | |
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| • Grate area | 23 sq ft (2.1 m2) |
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| Boiler pressure | 170 lbf/in2 (1.17 MPa) |
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| Heating surface: | |
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| • Firebox | 130 sq ft (12 m2) |
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| • Tubes | 1,182 sq ft (109.8 m2) |
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| • Total surface | 1,312 sq ft (121.9 m2) |
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| Cylinders | Two, inside |
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| Cylinder size | 19 in × 26 in (483 mm × 660 mm) |
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| Valve gear | Stephenson |
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The ten locomotives were built in one batch, and were numbered 686 to 695. They were designed for the Scarborough to Whitby line, on which the Class O 0-4-4T locomotives then in use were having difficulty with the traffic, especially the three-mile (4.8 km) section of 1 in 40 (2.5%). However, the low fuel and water capacity was a barrier to operational efficiency, and so between September 1914 and January 1917 the whole class was rebuilt as 4–6–2T locomotives[4] and reclassified W1.
Only one batch was built as the design was soon superseded by the Class D 4-4-4T.
More information Works No., Date built ...
Table of locomotives
| NER No. | Works No. | Date built | Date rebuilt |
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| 686 | 84 | December 1907 | May 1915 |
| 687 | 85 | December 1907 | January 1917 |
| 688 | 86 | December 1907 | September 1914 |
| 689 | 87 | January 1908 | May 1915 |
| 690 | 88 | February 1908 | August 1916 |
| 691 | 89 | March 1908 | June 1915 |
| 692 | 90 | March 1908 | May 1916 |
| 693 | 91 | March 1908 | February 1916 |
| 694 | 92 | April 1908 | May 1915 |
| 695 | 93 | April 1908 | July 1915 |
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