| Year | 1929 |
| Date | 17-Jan |
| Volume | 60 |
| Issue | 1,445 |
| Page | 61 |
| Category | Model Marine Notes |
| Part | 15 |
| Title | Model Yacht Design |
| Author | "Kappa" |
| Notes | The Guiding Principles (Part 4). Sketch position of M by eye, beginners to avoid this type of section, different wave systems - five speeds for a model, steady speed wave lengths, speeds of various wave lengths |