R.o.B Motive power
The locos of the LNER had class letters relevant to their wheel arrangement.
| A | | J | 0-6-0 | S | 0-8-4 |
| B | | K | | T | |
| C | | L | | U | 2-8-8-2 |
| D | | M | 0-6-4 | V | |
| E | | N | 0-6-2 | W | |
| F | | O | | X | |
| G | 0-4-4 | P | | Y | 0-4-0 |
| H | | Q | 0-8-0 | Z | 0-4-2 |
| I | | R | 0-8-2 | | |