| Year | 1930 |
| Date | 20-Nov |
| Volume | 63 |
| Issue | 1,541 |
| Page | 495 |
| Category | Nautical |
| Part | 3 |
| Title | Propeller Design |
| Author | V.W.D.B. |
| Notes | Testing Tank for Model Experiments. Plan of proposed testing tank for model power boats, construction details, propeller shaft, bevel wheels, sterntube, skeg, "Vena Contracta" flow meter, gauge glass |