| Year | 1972 |
| Date | 02-Jun |
| Volume | 138 |
| Issue | 3,442 |
| Page | 553 |
| Category | Locomotive |
| Part | |
| Title | Trials of a "Rob Roy" Locomotive |
| Author | N.Williams |
| Notes | Dimensional details, calculated performance, the trials, analysis of results, efficiencies, analysis of losses |