| B class | |
| Powertype: | Steam |
| Designer: | Edward Cusack |
| Builder: | North British |
| Builddate: | 1904 |
| Totalproduction: | 6 |
| Whytetype: | 0-6-0 |
| Driverdiameter: | 5feet |
| Operator: | Midland Great Western Railway Great Southern Railways CIÉ |
| Numinclass: | 4 |
| Fleetnumbers: | MGWR 143-146 GSR 646-649 |
| Locale: | Ireland |
| Withdrawndate: | 1930-1939 |
The Midland Great Western Railway (MGWR) B Class 0-6-0 was a class of 4 locomotives built at North British Locomotive Company in 1904. In 1925 they were allocated Great Southern Railways (GSR) Class 646 / Inchicore Class J2.[1] [2]
| MGWR No. | Name | Built | GSR No. | Withdrawn |
|---|---|---|---|---|
| 143 | Canada | 1904 | 646 | 1933 |
| 144 | Australia | 1904 | 647 | 1930 |
| 145 | India | 1904 | 648 | 1939 |
| 146 | Africa | 1904 | 649 | 1939 |
The MGWR Class B was an attempt at a more powerful 0-6-0 locomotive than the existing Class L. Like the Class A 4-4-0 which they shared some components they were weight restricted to the Dublin-Galway on the MGWR. They were rebuilt 1916/17 with superheating. On scrapping some of their tenders were givin to Class A locomotives.[2]