The Midland Railway 2511 Class was a class of 2-6-0 steam locomotives built by the Schenectady Locomotive Works in the United States, as a supplemental order to the 2501 Class built by Baldwin that same year. As with that class, the Midland had turned to American locomotive builders, as their own Derby Works had reached capacity, and was unable to produce additional engines at the time, and many British locomotive builders were recovering from an 1897-1898 labor dispute over working hours.

Quick Facts Type and origin, Power type ...
Midland Railway 2511 class
Thumb
Works Photograph of number 2512
Type and origin
Power typeSteam
BuilderSchenectady Locomotive Works
Serial number5037–5046
Build date1899
Total produced10
Specifications
Configuration:
  Whyte2-6-0
  UIC1′C n2
Gauge4 ft 8+12 in (1,435 mm)
Leading dia.3 ft 0 in (914 mm)
Driver dia.5 ft 0 in (1,524 mm)
Lengthover buffers: 51 ft 11+14 in (15.83 m)
Axle load14 long tons 4 cwt (31,800 lb or 14.4 t)
Adhesive weight41 long tons 1 cwt (92,000 lb or 41.7 t)
Loco weight49 long tons 15.5 cwt (111,500 lb or 50.6 t)
Tender weight37 long tons 0 cwt (82,900 lb or 37.6 t)
Tender typeThree-axle
Fuel typeCoal
Water cap.3,250 imp gal (14,800 L; 3,900 US gal)
Boiler pressure160 lbf/in2 (1.10 MPa)
CylindersTwo, outside
Cylinder size18 in × 24 in (457 mm × 610 mm)
Valve gearStephenson, inside
Valve typeSlide valves
Performance figures
Tractive effort17,626 lbf (78.40 kN)
Career
OperatorsMidland Railway
Class2511
NumbersNew: 2511–2520,
1907: 2230–2239
Delivered1899
Withdrawn1912 – 1915
DispositionAll scrapped
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History

The engines were designed and built with more consideration to British practice than the 2501 class had been. While the engines retained some distinct features of American practice, such as the use of bar frames, they had cleaner lines, with sandboxes placed below the boilers, as well as three-axle rigid tenders.

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Works Photograph of No. 2516

Numbers

Originally numbered 2511–2520, in the Midland's 1907 renumbering scheme the Schenectadies became No. 2230–2239, in the same order.

Withdrawal

Being non-standard, they had a short life and were all withdrawn between March 1912 and August 1915 and later scrapped.[1]

More information Year, Quantity inservice at start of year ...
Table of withdrawals[1]
YearQuantity in
service at
start of year
Quantity
withdrawn
Locomotive numbersNotes
19121012238
1913962230–2232, 2234, 2236, 2239
1914322235, 2237
1915112233
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References

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