| Year | 2013 |
| Date | 08-Mar |
| Volume | 210 |
| Issue | 4,451 |
| Page | 370 |
| Category | Boiler |
| Part | |
| Title | Electronic Boiler Control for Model Boats |
| Author | Tim Greenwood |
| Notes | Describes further experiments to obtain a reliable method of detecting boiler water levels. Optocoupler, testing, a Goodall valve, conclusions, acknowledgements, references |