Caledonian Railway 812 and 652 Classes - Train

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The Caledonian Railway 812 and 652 Classes were 0-6-0 steam tender locomotives designed by John F. McIntosh for the Caledonian Railway and introduced in 1899. They had the same boiler type as the 721 “Dunalastair” Class 4-4-0s. They could reach speeds of up to 55 mph (89 km/h).[1]

Caledonian Railway 812 and 652 Classes

Ex-CR 812 class No. 17596, not yet renumbered, at Corkerhill Locomotive Depot on 15 August 1948.

Type and origin
Power type	Steam
Designer	John F. McIntosh
Builder	CR St. Rollox Works Dübs & Co. (15) Neilson, Reid & Co. (20) Sharp Stewart (15)
Build date	1899–1909
Total produced	96 - 79 (812) / 17 (652)

Specifications
Configuration:
• Whyte	0-6-0
• UIC	Cn
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Driver dia.	5 ft 0 in (1.524 m)
Length	56 ft 2 in (17.12 m)
Loco weight	45.65 long tons (46.38 t; 51.13 short tons)
Fuel capacity	3,000 imp gal (14,000 l; 3,600 US gal)
Boiler pressure	160 psi (1,100 kPa)
Superheater	None
Cylinders	Two, inside
Cylinder size	18.5 in × 26 in (470 mm × 660 mm)
Valve gear	Stephenson
Valve type	Slide valves

Performance figures
Tractive effort	20,170 lbf (89.7 kN)

Career
Operators	Caledonian Railway London, Midland and Scottish Railway British Railways
Class	CR: 812 and 652
Power class	LMS/BR: 3F
Number in class	79 (812) 17 (652)
Numbers	CR: 282-293, 812-878 (812) 325-328, 652-665 (652) LMS: 17550-17628 (812) 17629-17645 (652) BR: 57550-57628 (812) 57629-57645 (652)
Locale	Scottish Region
Withdrawn	1948–1963
Preserved	No. 828
Disposition	One 812 preserved, remainder scrapped. All 652 locomotives scrapped.

Construction

96 locomotives were built, as follows:

Table of locomotives, 812 Class
Year	Quantity	CR Nos.	Builder	Builders No.	LMS Nos.	BR Nos.	Notes
1899	17	812–828	CR, St. Rollox	Y054	17550–17566	57550–57566	828 preserved
1899	10	829–838	Neilson, Reid & Co.	5613–5622	17567–17576	57567–57576
1900	10	839–848	Neilson, Reid & Co.	5623–5632	17577–17586	57577–57586
1900	15	849–863	Sharp Stewart	4633–4647	17587–17601	57587–57601
c.1900	15	864–878	Dübs & Co.	3880–3894	17602–17616	57602–57616
1899	12	282–293	CR, St. Rollox	Y058	17617–17628	57617–57628

Table of locomotives, 652 Class
Year	Quantity	CR Nos.	Builder	Builders No.	LMS Nos.	BR Nos.
1908	8	652–659	CR, St. Rollox	Y087-Y086	17629–17636	57629–57636
1908	4	662–665	CR, St. Rollox	Y086	17637–17640	57637–57640
1909	4	325–328	CR, St. Rollox	Y086	17641–17644	57641–57644
1909	1	661	CR, St. Rollox	Y086	17645	57645

Seventeen were fitted with the Westinghouse air brakes for passenger train working, including the only surviving engine of the class, No. 828. All 96 passed to the London, Midland and Scottish Railway at the 1923 grouping. Only three, 17567, 17598 and 17610, had been withdrawn by the time of nationalisation in 1948. The last locomotive in service was not withdrawn until 1963.

Preservation

Locomotive 828 (LMS 17566, BR 57566) is the sole survivor of the class and is an important example of Scottish industrial heritage. It is based at the Strathspey Railway. It was returned to regular service in 2010 and then again in March 2017 following heavy repairs. 828 is the final member of the first batch of engines built in 1899.

Belgian derivatives

A Type 30 engine used by the Railway Operating Division

Belgian State Railways (SNCB-NMBS) derived three series of steam locomotives (891 units) from the class 812 between 1899 and 1914. They had a shallower firebox, able to burn semi-bituminous coal and briquettes, allowing a shorter wheelbase due to its positioning above the rear axle. There were three classes

Type 30 – first variant with several details in common with the Caledonian engines (cab windows, gauges and tender coupling). 82 built between 1899 and 1901.
Type 32 (later renamed Type 44) – more powerful and fitted with a Belgian cab, higher steam pressure, new gauges and tender coupling. 502 built between 1901 and 1910
Type 32S [fr] (later renamed Type 41) – same features but improved with a Schmidt superheater. 307 built between 1905 and 1914

Until 1909, they were the only new engines used with freight trains. They were also used on suburban and local passenger trains and some expresses on hilly sections. Most of them were retired between 1947 and 1959. Some of them were then used as stationary boilers and two of them (44.221 and 41.195) survive in museums. A third one (44.021), kept as a parts donor, was cut up for scrap in 2002.[2]

References

Train: The Definitive Visual History. DK Press. p. 98.
"Former Belgian Steam Heating Locomotives". Archived from the original on 25 May 2018. Retrieved 25 May 2018.

Casserley, H. C. & Johnston, Stuart W. (1974) [1966]. Locomotives at the Grouping 3: London, Midland and Scottish Railway. Shepperton, Surrey: Ian Allan. pp. 178–179. ISBN 0-7110-0554-0.

External links

Wikimedia Commons has media related to Caledonian Railway 812 class.

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 92 139 140 179 184 439 498 611 652 711 721 766 782 812 879 900 903
William Pickersgill (1914–1923)	60 72 113 159 191 300 431 944 956
Miscellaneous	Highland Railway River Class

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