The Caledonian Railway 60 Class were 4-6-0 passenger engines designed by William Pickersgill and introduced in 1916. Six were built by the Caledonian Railway at its own St. Rollox works in 1916–17, and all of them passed into LMS ownership in 1923. A further twenty locomotives of a slightly modified design were built by the LMS under the auspices of George Hughes in the period of 1925–1926.

Caledonian Railway 60 Class (details for original CR batch)
Pickersgill/Hughes 4P 4-6-0 No. 14640 at Motherwell Locomotive Depot, 15 August 1948.
Type and origin Power type Steam Designer William Pickersgill Builder St. Rollox Works Order number Y115, Y116 Build date November 1916 – April 1917 Total produced 6
Specifications Configuration: ​  • Whyte 4-6-0  • UIC 2′C h2 Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Leading dia. 3 ft 6 in (1.067 m) Driver dia. 6 ft 1 in (1.854 m) Loco weight 75 long tons (76 t; 84 short tons) Tender weight 46.5 long tons (47.2 t; 52.1 short tons) Fuel type Coal Boiler pressure 175 lbf/in2 (1.21 MPa) Heating surface 1,676 sq ft (155.7 m2) Superheater: ​  • Type Robinson  • Heating area 258.3 sq ft (24.00 m2) Cylinders Two, outside Cylinder size 20 in × 26 in (508 mm × 660 mm) Valve gear Stephenson Valve type Piston valves
Performance figures Tractive effort 21,795 lbf (96.95 kN)
Career Operators Caledonian Railway → London, Midland and Scottish Railway → British Railways Class CR: 60 Power class LMS: 4P Numbers CR: 60–65 LMS: 14630–14655 Withdrawn 1944 (1), 1946–1953 Disposition All scrapped

The 60 Class were rugged and free steaming, but were unsophisticated and of lethargic performance for their size. Although classified as passenger locomotives by the LMS, latterly they spent much of their time on goods trains and acquired the nickname Greybacks, either in reference to their long and grimy boilers or possibly as an insult from former Glasgow and South Western Railway enginemen[1] ('greyback' being an old term for louse). Withdrawals began in 1944 but twenty three passed into British Railways ownership in 1948. The last locomotives were withdrawn from service in 1953, and all were scrapped.

Numbering and Locomotive Histories

sources Longworth (2005)[2] and RailUK[3][4]

Technical details

Pickersgill Caledonian Railway design

See box, top right.[5]

Hughes LMS development of Pickersgill design

The locomotives built by the LMS had slightly larger cylinders and weighed slightly less than the original CR locomotives. Details were as for the CR locomotives except:[6]

• Introduced: 1925
• Boiler Pressure: 180 psi (1,200 kPa)
• Two cylinders: 20.5 in × 26 in (521 mm × 660 mm)
• Loco Weight: 74.75 long tons (75.95 t)
• Tender Weight: 41.5 long tons (42.2 t)
• Starting tractive effort: 22,900 lbf (102 kN)

References

• 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.

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