Midland Railway 2501 and 2511 Class locomotives

Midland Railway 2501 and 2511 classes

Works Photograph of number 2516
Type and origin
Power type Steam
Builder
Build date 1899
Total produced
  • 2501: 30
  • 2511: 10
Specifications
Configuration 2-6-0
UIC class 1′C n2
Gauge 4 ft 8 1⁄2 in (1,435 mm)
Leading dia. 2 ft 9 1⁄4 in (845 mm)
Driver dia. 5 ft 0 1⁄4 in (1,530 mm)
Length

(over buffers)

  • 2501: 51 ft 6 1⁄4 in (15.70 m)
  • 2511: 51 ft 11 1⁄4 in (15.83 m)
Axle load
  • 2501: 13 long tons 7 cwt (29,900 lb or 13.6 t)
  • 2511: 14 long tons 4 cwt (31,800 lb or 14.4 t)
Adhesive weight
  • 2501: 38 long tons 0.75 cwt (85,200 lb or 38.6 t)
  • 2511: 41 long tons 1 cwt (92,000 lb or 41.7 t)
Loco weight
  • 2501: 45 long tons 16.25 cwt (102,600 lb or 46.5 t)
  • 2511: 49 long tons 15.5 cwt (111,500 lb or 50.6 t)
Tender weight
  • 2501: 34 long tons 12.5 cwt (77,600 lb or 35.2 t)3 ft 0 in (914 mm)
  • 2511: 37 long tons 0 cwt (82,900 lb or 37.6 t)
Tender type
  • 2501: Two two-axle bogies
  • 2511: Three-axle
Fuel type Coal
Water cap 3,250 imp gal (14,800 l; 3,900 US gal)
Boiler pressure 160 lbf/in2 (1.10 MPa)
Cylinders Two, outside
Cylinder size 18 in × 24 in (457 mm × 610 mm)
Valve gear Stephenson, inside
Valve type Slide valves
Performance figures
Tractive effort 17,626 lbf (78.40 kN)
Career
Operators Midland Railway
Class
  • 2501
  • 2511
Numbers
  • 2501 class: 2501–2510, 2521–2540, renumbered 2200–2229 in 1907
  • 2511 class: 2511–2520, renumbered 2230–2239 in 1907
Delivered 1899
Withdrawn by 1915
Disposition All scrapped

The Midland Railway 2501 and 2511 Class were two classes of American-built 2-6-0 steam locomotives. The Midland's own Derby Works had reached their capacity, and were unable to produce additional engines at the time, and many British locomotive builders were recovering from an 1897-1898 strike over the eight-hour working day, and thus had large backlogs of unfulfilled orders, so the Midland Railway turned to American builders. Thirty 2501 class locomotives were built by the Baldwin Locomotive Works in 1899, followed by ten 2511 class engines built by the Schenectady Locomotive Works later that same year. Both classes were built in the United States as kits, shipped to Derby, and assembled.

Appearance

For the 2501 class engines, little or no consideration was given to British practice, so they were distinctly American in appearance, and their tenders were typical of American practice, featuring two bogies of two axles each, rather than the rigid, three axle tender design more commonly used in Britain. However, when the 2511's were acquired, more consideration was given, as they had tenders of the latter design and their appearance, while still American, had much cleaner lines.

Numbering

The 2501 class engines were numbered 2501–2510, 2521–2540, and the 2511's numbered 2511–2520. In 1907, the Midland Railway had renumbered its engines, and as such the 2501 and 2511 classes were numbered 2200–2229, and 2230–2239, respectively.

Withdrawal

Being non-standard, both classes were quickly withdrawn and all were scrapped before the formation of the LMS in 1923.

References

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