Caledonian Railway 670 Class
| Caledonian Railway 670 Class | |
|---|---|
| Type and origin | |
| Power type | Steam |
| Designer | George Brittain |
| Build date | 1878-1881 |
| Total produced | 30 |
| Specifications | |
| Configuration | 0-4-2 |
| Gauge | 4 ft 8 1⁄2 in (1,435 mm) |
| Driver diameter | 5 ft 0 in (1.52 m) |
| Locomotive weight |
34.6 long tons (35.2 t)† 36.95 long tons (37.54 t)†† |
| Boiler pressure |
140 psi (970 kPa)† 150 psi (1,000 kPa)†† |
| Cylinders | Two, outside |
| Cylinder size | 17 in × 24 in (432 mm × 610 mm) |
| Valve gear | Stephenson |
| Performance figures | |
| Tractive effort |
13,756 lbf (61.19 kN)† 14,739 lbf (65.56 kN)†† |
| Career | |
| Operator(s) | CR • LMS |
| Class | CR: 670 |
| Power class | LMS: Unclassified |
| Withdrawn | 1923 |
The Caledonian Railway 670 Class was a class of 0-4-2 steam locomotives designed by George Brittain for the Caledonian Railway (CR) and introduced in 1878. [1]
Ownership changes
Nine locomotives were withdrawn in 1922, or earlier. Twenty-one survived into the ownership of the London, Midland and Scottish Railway (LMS) in 1923; these were withdrawn between 1923 and 1932.[2]
Numbering
| CR nos. | Quantity | LMS nos. | Notes |
|---|---|---|---|
| Various | 7 | 17000-17006 | † |
| Various | 14 | 17007-17020 | †† |
- Notes
- † locos with140 psi pressure
- †† locos with 150 psi pressure
References
- ↑ Casserley, H.C. and Johnston, S.W., Locomotives at the Grouping, No.3, London Midland and Scottish, Ian Allan, 1966, page 170
- ↑ Baxter, Bertram (1984). Baxter, David, ed. British Locomotive Catalogue 1825-1923, volume 4: Scottish and remaining English Companies in the LMS Group. Ashbourne: Moorland Publishing. pp. 68–69.
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