| Year | 2015 |
| Date | 01-May |
| Volume | 214 |
| Issue | 4,507 |
| Page | 652 |
| Category | Workshop |
| Part | |
| Title | Using DROs for Frame Mapping |
| Author | Pete Targett |
| Notes | Maps existing locomotive frame layouts for locating new components. Plotting the X, Y coordinates of the original drawings, frame mapping, Dart frame mapping |