| Year | 2005 |
| Date | 04-Feb |
| Volume | 194 |
| Issue | 4,240 |
| Page | 160 |
| Category | Locomotive |
| Part | |
| Title | An Interesting Exercise |
| Author | I.D.Howitt |
| Notes | Describes how a machining omission when building a full-sized A1 Pacific locomotive Tornado was solved using much ingenuity |