Locomotive Classes of the Rhymney Railway
| Designer | Class | Pre Grouping Class | Wheels | Year | Pre Grouping | Big 4 | BR Power Class | Number Range | First | Last | # | Thumbnail |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R | RR class 'R' | 0-6-2T | 1907 | RR | GWR | 30 - 46 | 12/1907 | 03/1951 | 5 | |||
| R | RR class 'R1' | 0-6-2T | RR | GWR | 35 - 44 | 07/1921 | 10/1957 | 10 | ||||
| A | RR class 'A' | 0-6-2T | 1910 | RR | GWR | 52 - 75 | 05/1910 | 07/1955 | 16 | |||
| S | RR class 'S' | 0-6-0T | 1908 | RR | GWR | 93 - 611 | 06/1908 | 05/1954 | 4 | |||
| A1 | RR class 'A1' | 0-6-2T | RR | GWR | 63 - 70 | 06/1914 | 07/1955 | 8 | ||||
| S1 | RR class 'S1' | 0-6-0T | 1919 | RR | GWR | 92 - 605 | 06/1920 | 06/1954 | 3 | |||
| AP | RR class 'AP' | 0-6-2T | 1909 | RR | GWR | 78 - 81 | 08/1921 | 08/1955 | 4 | |||
| M | RR class 'M' | 0-6-2T | 1904 | RR | GWR | 33 - 51 | 06/1904 | 02/1951 | 3 | |||
| P | RR class 'P' | 0-6-2T | 1909 | RR | GWR | 76 - 83 | 07/1909 | 05/1955 | 4 |