| Year | 1912 |
| Date | 16-May |
| Volume | 26 |
| Issue | 577 |
| Page | 465 |
| Category | Aeronautical |
| Part | |
| Title | Steam-driven Plant for Model Aeroplanes |
| Author | V.E.Johnson |
| Notes | The plant: propeller & fixing bracketsThe plant & its designer (Mr. H.H.Groves), set of propellers for testing purposes (supplied by Messrs. J.Bohn & Co), duration graphs |