| Year | 1936 |
| Date | 18-Jun |
| Volume | 74 |
| Issue | 1,832 |
| Page | 598 |
| Category | Practical Letters from Our Readers |
| Part | |
| Title | Two-Stroke Petrol Engines |
| Author | D.H.Chaddock |
| Notes | Test bench for supercharging engine coupled to electric dynamometer (photo by D.H.Chaddock) |