| Year | 2025 |
| Date | 13-Dec |
| Volume | 234 |
| Issue | 4,758 |
| Page | 40 |
| Category | Nautical |
| Part | 3 |
| Title | A Radial Marine Steam Engine |
| Author | Ian Couchman |
| Notes | Builds a rather unusual 'quasi radial' triple expansion engine. Crossheads and piston rods, the motion (for want of a better term … ), lost wax casting, valves |