| Year | 2004 |
| Date | 09-Jan |
| Volume | 192 |
| Issue | 4,212 |
| Page | 37 |
| Category | Hot Air |
| Part | 4 |
| Title | 'Hopkins' Hot Air Engines |
| Author | James G.Rizzo (Malta) |
| Notes | Suitable burners and cooling arrangements for Mk. 1 engine, construction of Mk 2., cooling, starting and running the Hopkins Mk. 1 engine, Hopkins Mk 2 |