| Year | 2024 |
| Date | 23-Feb |
| Volume | 232 |
| Issue | 4,737 |
| Page | 309 |
| Category | Nautical |
| Part | 8 |
| Title | Hercules A twin cylinder compound condensing marine steam engine |
| Author | Chris Walter |
| Notes | Builds an engine described in Model Engineer 100 years ago. Main stop valve (regulator) and simpling valve, manifolds, air pump, air pump drive levers |