Caledonian Railway 294 and 711 Classes

The Caledonian Railway 294 and 711 Classes (nicknamed "Jumbo") were 0-6-0 steam locomotives designed by Dugald Drummond for the Caledonian Railway (CR) and introduced in 1883. After Drummond's retirement, construction of the class continued under Smellie, Lambie and McIntosh.[1][2]

Caledonian Railway 294 and 711 Classes
711 class No. 57472 at Bo'ness 4 October 1961
Type and origin
Power typeSteam
DesignerDugald Drummond
Build date1883-1897
Total produced244
Specifications
Configuration:
​
 • Whyte0-6-0
Gauge4 ft 8+1⁄2 in (1,435 mm)
Driver dia.5 ft 0 in (1.52 m)
Loco weight41.3 long tons (42.0 t)
Fuel typecoal
Boiler pressure150 psi (1,000 kPa)
CylindersTwo, inside
Cylinder size18 in × 26 in (457 mm × 660 mm)
Valve gearStephenson
Performance figures
Tractive effort17,901 lbf (79.63 kN)
Career
Operators
ClassCR: 294 and 711
Power classLMS: 2F
Numbers
  • LMS:17230-17392 (294) 17393-17473 (711)
  • BR:57230-57392 (294) 57393-57473 (711)
NicknamesJumbo
LocaleScottish Region
Withdrawn1946-1962
DispositionAll scrapped

Ownership changes

All 244 locomotives survived to be absorbed by the London, Midland and Scottish Railway (LMS) in 1923 and 238 survived into British Railways (BR) ownership in 1948.

Numbering
294 class No. 57361 at Polmadie Depot 15 August 1948
294 Class
CR nos. LMS nos. BR nos.
Various 17230-17392 57230-57392
711 Class
CR nos. LMS nos. BR nos.
Various 17393-17473 57393-57473

The BR number series are not continuous because some locomotives were withdrawn before 1948.

See also

References
  1. Casserley, H.C. and Johnston, S.W., Locomotives at the Grouping, No.3, London Midland and Scottish, Ian Allan, 1966, pp 176-177
  2. "Rail UK Steam Loco Class Information". railuk.info. Retrieved 27 July 2021.
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