Power type Steam Build date 1920 | Total produced 32 | |
 | ||
Builder St. Rollox Works (10)Armstrong Whitworth (10)North British Locomotive Co. (12) | ||
The Caledonian Railway 72 Class was a class of 4-4-0 steam locomotives introduced by William Pickersgill for the Caledonian Railway (CR) in 1920. Thirty-two locomotives were built and all survived to be taken over by the London, Midland and Scottish Railway (LMS) in 1923 and by British Railways (BR) in 1948. The earlier 113 Class (introduced in 1916), of which 16 were produced, were similar but slightly smaller. These were the Caledonian's last express passenger locomotives, and technically, the last of the Dunalastair series, and were unofficially dubbed, Dunalastair V.
Contents
Numbering
The two classes together totalled 48 locomotives. These were withdrawn between 1953 and 1963.
Dimensions
Figures given in this section are from BR Database. Figures given by Rail UK are slightly different.
72 Class
See box, top right.
113 Class
See table below.
Introduced: 1916 Total produced: 16Locomotive weight: 61.25 long tons (62.23 t)Boiler pressure: 175 psi (1.21 MPa)Superheater: YesCylinders: 20 in × 26 in (508 mm × 660 mm)Driving wheel diameter: 6 ft 6 in (1,981 mm)Valve gear: StephensonLMS/BR Power classification: 3PTractive effort: 19,833 lbf (88.22 kN)Preservation
Although no members of the class have been preserved, there are plans to construct a replica.