| Year | 1939 |
| Date | 20-Jul |
| Volume | 81 |
| Issue | 1,993 |
| Page | 67 |
| Category | Nautical |
| Part | |
| Title | A Test Tank |
| Author | D.H.Chaddock |
| Notes | Some investigations into the problem of testing hydroplane hulls. Section of testing-tank, photograph, suggested design for an improved testing-tank |