Midland Railway 780 Class

The Midland Railway 780 Class was a class of 0-4-4T steam locomotives. They were built by Dubs & Co. in 1870, and were very similar to the 690 Class. Originally numbers 780–799. They were double-framed engines with a back tank behind the cab under the bunker. They were all originally fitted with condensing apparatus for working the Metropolitan lines.

Midland Railway 780 class
Type and origin
Power typeSteam
DesignerMatthew Kirtley
BuilderDübs & Co.
Serial number357–376
Build date1870
Total produced20
Specifications
Configuration:
  Whyte0-4-4WT
  UICB2′ n2t
Gauge4 ft 8 12 in (1,435 mm)
Driver dia.5 ft 2 in (1.575 m)
Trailing dia.3 ft 0 in (0.914 m)
Wheelbase:
  Engine
  • 8 ft 0 in (2.438 m) +
  • 9 ft 9 in (2.972 m) +
  • 5 ft 0 in (1.524 m)
Frame typeDouble frame
Loco weight43 long tons 13 cwt (44.4 t)
Fuel typeCoal
Boiler:
  Diameter4 ft 3 in (1.295 m)
  Tube plates11 ft 0 in (3.35 m)
Heating surface1,072.7 sq ft (99.66 m2)
CylindersTwo, inside
Cylinder size17 in × 24 in (432 mm × 610 mm)
Career
Operators
Numbers
  • New: 780–799
  • 1907: 1206–1225
Withdrawn1921–1935

In 1898 Nos 780–783 were transferred to the duplicate list as Nos 780A–783A. Their 1907 numbers were 1206–1225. No. 1212 was withdrawn in 1921, but the remaining 19 were inherited by the London, Midland and Scottish Railway at the 1923 Grouping. They were all withdrawn, and were extinct by 1935.

References

  1. Baxter 1982, p. 75.
  • Baxter, Bertram (1982). Baxter, David (ed.). British Locomotive Catalogue 1825–1923. Volume 3A: Midland Railway and its constituent companies. Ashbourne, Derbyshire: Moorland Publishing Company. ISBN 9780903485524.
  • An Illustrated Review of Midland Locomotives Volume 3 - Tank Engines by R. J. Essery & D. Jenkinson ISBN 9780906867662
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