| Year | 2024 |
| Date | 26-Jul |
| Volume | 233 |
| Issue | 4,748 |
| Page | 230 |
| Category | Hot Air |
| Part | |
| Title | So Long, and Thanks for All the Fish |
| Author | Roger Backhouse |
| Notes | Discovers that there is always a displacer for us. Alyn Foundry, Robinson Engine, the hot air engine fuelled by butane gas, the problem air line, Tony oiling his hot air engine, York model engineers admiring Tony's engine, references, some photos by Tony Simons |