| Year | 1965 |
| Date | 01-Sep |
| Volume | 131 |
| Issue | 3,280 |
| Page | 633 |
| Category | Locomotive |
| Part | |
| Title | The horsepower of little locomotives |
| Author | S.J.Hobson |
| Notes | Efficiency trial using his model dynamometer car (Harrow and Wembley SME). J.Richardson's 3 1/2"g. Petrolea, 5"g. tank and industrial "coffee pot" of Alan Tyler |