Caledonian Railway 179 Class

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Caledonian Railway 179 Class
Type and origin
Power type Steam
Designer George Brittain
Builder Dübs & Co.
Serial number 1672–1681
Build date 1882
Total produced 10
Specifications
Configuration:
 • Whyte 4-4-0
 • UIC 2′B n2
Gauge 4 ft 8 12 in (1,435 mm)
Driver dia. 5 ft 2 in (1,575 mm)
Minimum curve 3 ft 2 in (965 mm)
Loco weight
  • Originally: 41 long tons 11 34 cwt (42.25 t)
  • Rebuilt: 40 long tons 17 12 cwt (41.53 t)
Boiler pressure
  • Originally: 130 lbf/in2 (0.90 MPa)
  • Rebuilt: 150 lbf/in2 (1.03 MPa)
Heating surface
  • Originally: 1,146.42 sq ft (106.506 m2)
  • Rebuilt: 1,085.9 sq ft (100.88 m2)
Cylinders Two, outside
Cylinder size 18 in × 24 in (457 mm × 610 mm)
Valve gear Stephenson
Performance figures
Tractive effort
  • Originally: 13,858 lbf (61.64 kN)
  • Rebuilt: 15,991 lbf (71.13 kN)
Career
Operators
Class CR: 179
Power class LMS: 1P
Withdrawn 1922–1930

The Caledonian Railway 179 Class (nicknamed Oban bogie) was a class of 4-4-0 steam locomotives designed by George Brittain for the Caledonian Railway (CR) and introduced in 1882.[1]

Table of orders and numbers
CR nos. Quantity LMS nos. Notes
179–188 10 14100–14107 CR 1184 and 1185
withdrawn 1922

All ten were built by Dübs and Company in 1882; they came with 4-wheel tenders to reduce the overall length in order to fit on the turntables. They were rebuilt and reboilered between 1898 and 1901. They were placed on the duplicate list (by adding 1000 to their original fleet number) between 1913 and 1914.

Two locomotives (1184 and 1185) were withdrawn in 1922. Eight survived into the ownership of the London, Midland and Scottish Railway (LMS) in 1923; who allocated them fleet numbers 14100–14107, but only three (14100/03/05) were renumbered.[2] All had been withdrawn by 1930.

Table of withdrawals[2]
Year Quantity in
service at
start of year
Quantity
withdrawn
Locomotive numbers Notes
1922 10 2 1184, 1185
1923 8 1 1181
1924 7 1 1187
1925 6 2 1180, 1188
1927 4 1 1183
1930 3 3 14100, 14103, 14105 (ex 1179, 1182, 1186)

References[edit]

  1. ^ Casserley & Johnson 1966, p. 132.
  2. ^ a b Baxter 1984, pp. 69–70.
  • Baxter, Bertram (1984). Baxter, David, ed. British Locomotive Catalogue 1825–1923, Volume 4: Scottish and remaining English Companies in the LMS Group. Ashbourne, Derbyshire: Moorland Publishing Company. 
  • Casserley, H. C. & Johnston, Stuart W. (1974) [1966]. Locomotives at the Grouping 3: London, Midland and Scottish Railway. Shepperton, Surrey: Ian Allan. ISBN 0-7110-0554-0.