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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+1⁄2 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+3⁄4 cwt (42.25 t) Rebuilt: 40 long tons 17+1⁄2 cwt (41.53 t) Boiler pressure Originally: 130 lbf/in (0.90 MPa) Rebuilt: 150 lbf/in (1.03 MPa) Heating surface Originally: 1,146.42 sq ft (106.506 m) Rebuilt: 1,085.9 sq ft (100.88 m) 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Career Operators Caledonian Railway → London, Midland and Scottish Railway Class CR: 179 Power class LMS: 1P Withdrawn 1922–1930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.

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Two locomotives (1184 and 1185) were withdrawn in 1922.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. All had been withdrawn by 1930.

References

1. Casserley & Johnston 1966, p. 132.
2. ^ 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) . Locomotives at the Grouping 3: London, Midland and Scottish Railway. Shepperton, Surrey: Ian Allan. ISBN 0-7110-0554-0.

v t e Caledonian Railway locomotives
Robert Sinclair (1847–1856)	59 (2-2-2) 96 101 111
Benjamin Connor (1856–1876)	59 (2-4-0) 552 600
George Brittain (1876–1882)	1 130 140 152 179 485 486 670
Dugald Drummond (1882–1890)	66 80 123 124 171 262 264 272 294 323
Hugh Smellie (1890)	Appointed 1 September 1890. Died 19 April 1891
John Lambie (1891–1895)	1 13 19 211 538A
John F. McIntosh (1895–1914)	29 43 49 55 92 139 140 179 184 439 492 498 611 652 711 721 766 782 812 879 900 903
William Pickersgill (1914–1923)	60 72 113 159 191 300 431 944 956
Miscellaneous	Highland Railway River Class
Locomotives of the London, Midland and Scottish Railway Steam locomotives of British Railways

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