Metropolitan Railway K Class
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| Power type | Steam |
|---|---|
| Builder | Armstrong Whitworth |
| Build date | 1925 |
| Configuration | 2-6-4T |
| UIC classification | 1'C2'ht |
| Leading wheel size | 37 in (940 mm) |
| Driver size | 66 in (1,700 mm) |
| Trailing wheel size | 37 in (940 mm) |
| Wheelbase | 36 ft 7 in (11,200 mm) |
| Axle load | 18.45 long tons (18.7 t) |
| Locomotive weight | 87.35 long tons (88.8 t) |
| Fuel type | Coal |
| Fuel capacity | 4.00 long tons (4.1 t) |
| Water capacity | 2,000 imp gal (9,100 l) |
| Boiler pressure | 200 psi (1.38 MPa) superheated |
| Fire grate area | 25 sq ft (2.3 m²) |
| Heating surface: Tubes | 1,017 sq ft (94.5 m²) |
| Heating surface: Flues | 356 sq ft (33.1 m²) |
| Heating surface: Firebox | 135 sq ft (12.5 m²) |
| Superheater area | 285 sq ft (26.5 m²) |
| Cylinders | Two, outside |
| Cylinder size | 19×28 in (487×711 mm) |
| Tractive effort | 26,036 lbf (115.81 kN) |
| Career | Metropolitan Railway London and North Eastern Railway |
| Class | MET: K LNER L2 |
| Number in class | 6 |
| Number | MET:111–116 LNER 6158–6163 |
| Retired | 1943–1948 |
| Disposition | All scrapped |
The Metropolitan Railway K class consisted of six 2-6-4T steam locomotives, numbered 111 to 116. They were built by Armstrong Whitworth in 1925 using parts manufactured at Woolwich Arsenal to the design of the South Eastern and Chatham Railway N Class 2-6-0 locomotives. The boilers had been made by Robert Stephenson and Company of Darlington.
The K Class were used on heavy freight trains along London's Metropolitan Railway mainline, including coal to the power station at Neasden, although there were used on occasional passenger trains. In 1937, all six were transferred to the London and North Eastern Railway (LNER) where they were based at Neasden (LNER) Shed. The LNER numbered then 6158–6163 and classified them as L2 class.
All were withdrawn and scrapped between 1943 and 1948.
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