| Year | 2014 |
| Date | 14-Nov |
| Volume | 213 |
| Issue | 4,495 |
| Page | 724 |
| Category | Locomotive |
| Part | |
| Title | A Mechanical Controller for Battery Electric Locomotives |
| Author | Derek Alford |
| Notes | Creates a responsive and efficient control mechanism. BR Class 20, Metropolitan Railway's Michael Faraday in 7 1/4"g., motor characteristics, mass, speed and power, performance on Club tracks, battery size, selecting the motors and speed reduction drives, mechanical controller principles of operation, circuit diagram for 7 1/4"g. BR Class 20, references |