| Caledonian Railway 670 Class | 
|---|
| | Type and origin | 
|---|
 | Power type | Steam | 
|---|
 | Designer | George Brittain | 
|---|
 | Build date | 1878-1881 | 
|---|
 | Total produced | 30 | 
|---|
 | 
|  | 
| | Performance figures | 
|---|
 | Tractive effort | 13,756 lbf (61.19 kN)† 14,739 lbf (65.56 kN)††
 | 
|---|
 | 
| | Career | 
|---|
 | Operators | CR • LMS | 
|---|
 | Class | CR: 670 | 
|---|
 | Power class | LMS: Unclassified | 
|---|
 | Withdrawn | 1922-1932 | 
|---|
 | Disposition | All scrapped | 
|---|
 | 
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Nine locomotives were withdrawn in 1922, or earlier. Twenty-one survived into the ownership of the London, Midland and Scottish Railway (LMS) in 1923; these were withdrawn between 1923 and 1932.[2]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 with 140 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.