70 long tons (71.1 t; 78.4 short tons) (as built) 71.5 long tons (72.6 t; 80.1 short tons) (as rebuilt)[1]
Tender weight
55 long tons (55.9 t; 61.6 short tons)[1]
Boiler pressure
200 psi when built, 175 psi as rebuilt[1]
Superheater
Schmidt (as rebuilt)[2]
Cylinders
Two, inside
Cylinder size
New: 21 in × 26 in (533 mm × 660 mm) [20 in × 26 in (508 mm × 660 mm)] Rebuilt: 20.75 in × 26 in (527 mm × 660 mm)[1]
Valve gear
Stephenson
Performance figures
Tractive effort
25,000 lbf (110 kN) [22,700 lbf (101 kN)] when built, 21,300 lbf (95 kN) as rebuilt[1]
Career
Operators
Caledonian Railway
→ London, Midland and Scottish Railway
Class
CR: 49 and 903 classes
Power class
LMS: 4P
Numbers
CR: 49–50, 903–907
LMS: 14750–14755
Withdrawn
49: 1933
903: 1915, 1927–1930
Disposition
All scrapped
The Caledonian Railway 49 Class and 903 Class were 4-6-0 express passenger locomotives designed by John F. McIntosh and built at the Caledonian Railway's own St. Rollox Works in 1903 and 1906 respectively.
^ abcdefAtkins 1976, pp. 98–101.
^Atkins 1976, p. 43.
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