Construction
A total of 128 were built between 1946 and 1953, mostly at Crewe. 20 were built by LMS and given the numbers 6400–19. On nationalisation in 1948 40000 was added to their numbers to become 46400–19. The remaining 108 locomotives of the class, numbered 46420–46527 were built by British Railways, and from 46465 (Darlington, 1951) an increase in cylinder diameter of 1/2 inch yielded a tractive effort of 18,510 lb, 1,100 lb greater than the original design. The LMS classified them 2F, BR as 2MT.
The 38 members of the Darlington-built batch (46465 to 46502) were allocated to the Eastern and North Eastern Regions of British Railways. The final 25 (46503 to 46527) were built at Swindon Works and, being allocated to the Western Region, consequently carried the GWR-type vacuum ejector and firehole doors. The Swindon locomotives were turned out, initially, in lined black. Under the Hanks regime, some received lined green livery as they passed through works. The rest carried black livery. None of the Class was named in service, however some have been named in preservation.
| Number | Lot no. | Date | Built at | |
|---|---|---|---|---|
| LMS | BR | |||
| 6400–9 | 46400–9 | 182 | 1946 | Crewe |
| 6410–9 | 46410–9 | 189 | 1947 | Crewe |
| - | 46420–34 | 194 | 1948 | Crewe |
| - | 46435–49 | 201 | 1950 | Crewe |
| - | 46450–9 | 207 | 1950 | Crewe |
| - | 46460–4 | 208 | 1950 | Crewe |
| - | 46465–82 | 1309 | 1951 | Darlington |
| - | 46483–94 | 1310 | 1951 | Darlington |
| - | 46495–502 | 1310 | 1952 | Darlington |
| - | 46503–14 | 394 | 1952 | Swindon |
| - | 46515–27 | 394 | 1953 | Swindon |
The class was withdrawn between 1961 and 1967.
Read more about this topic: LMS Ivatt Class 2 2-6-0
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