Caledonian Railway 179 and 184 Classes
Type and origin
Power typeSteam
DesignerJohn F. McIntosh
BuilderSt. Rollox
Build date1913-15
Total produced11
Specifications
Configuration:
​
 • Whyte4-6-0
Gauge4 ft 8+1⁄2 in (1,435 mm)
Driver dia.5 ft 9 in (1.75 m)[1]
Loco weight68.5 tons[1]
Tender weight38 tons[1]
Water cap.3,570 imp gal (16,200 L; 4,290 US gal)
Boiler pressure170psi[1]
SuperheaterRobinson[2]
CylindersTwo, inside
Cylinder size19.5 in × 26 in (495 mm × 660 mm)[1]
Valve gearStephenson
Performance figures
Tractive effort20,700 lbf (92 kN)[1]
Career
OperatorsCR • LMS
ClassCR: 179 and 184
Power classLMS: 3F
Number in class11
NumbersCR: 179-189
Withdrawn1934-1946

The Caledonian Railway 179 Class and 184 Class were 4-6-0 mixed-traffic locomotives[3] designed by John F. McIntosh and built in two batches in 1913-14 and 1914-15 respectively, at the Caledonian Railway's own St. Rollox Works. The differences between the two batches were minor, and they are often considered to be a single class.

Overview

They were the last new locomotives designed by McIntosh before his retirement. The type was essentially a superheated version of the earlier 908 Class and were built primarily for use on express goods trains, although they also worked on passenger traffic and were painted in the Caledonian's blue passenger livery. The locomotives were the most successful of McIntosh's various 4-6-0 designs.[4]

LMS ownership

The locomotives passed into the ownership of the London, Midland and Scottish Railway upon its formation in 1923. Although the older 908 Class were treated as passenger locomotives by the LMS, the 179s were classified as a freight type and were repainted into unlined black freight livery. They continued in use until they were displaced by new LMS standard locomotives such as the Black Five 4-6-0s.

Disposal

Although they outlasted most of the other McIntosh 4-6-0s they were withdrawn and scrapped between 1934 and 1946.

Numbering and locomotive histories

CR no. LMS no. Delivered Works Withdrawn Class
179 17905 Dec 1913 St. Rollox Dec 1945 179 Class
180 17906 Dec 1913 St. Rollox Feb 1936 179 Class
181 17907 Jan 1914 St. Rollox Nov 1935 179 Class
182 17908 Jan 1914 St. Rollox Feb 1946 179 Class
183 17909 Feb 1914 St. Rollox Nov 1936 179 Class
184 17910 Dec 1914 St. Rollox Sep 1936 184 Class
185 17911 Dec 1914 St. Rollox Apr 1935 184 Class
186 17912 Jan 1915 St. Rollox Jun 1937 184 Class
187 17913 Feb 1915 St. Rollox Nov 1934 184 Class
188 17914 Feb 1915 St. Rollox Jun 1935 184 Class
189 17915 Feb 1915 St. Rollox Mar 1935 184 Class

source: BritishSteam[5]

See also

References

  1. 1 2 3 4 5 6 Atkins, C. P. (1976), The Scottish 4-6-0 Classes, Ian Allan, p.105
  2. ↑ Atkins, C. P. (1976), The Scottish 4-6-0 Classes, Ian Allan, p.43
  3. ↑ Essery, Bob & Jenkinson, David (1986), An Illustrated History of L.M.S. Locomotives, Volume Three: Absorbed Pre-Group Classes, Northern Division, OPC, p.104
  4. ↑ Atkins, C. P. (1976), The Scottish 4-6-0 Classes, Ian Allan, p.48
  5. ↑ "BritishSteam locomotive information". BritishSteam.com. Archived from the original on 4 April 2013. Retrieved 26 May 2013.
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