| Year | 1940 |
| Date | 11-Jan |
| Volume | 82 |
| Issue | 2,018 |
| Page | 45 |
| Category | Model Aeronautics |
| Part | |
| Title | Theory and Practice of Model Aeroplane Building |
| Author | Lawrence H.Sparey |
| Notes | Propellers, an asymetrical propeller of alternate laminations, of duralumin and English oak, of Chauviere type, |