| Year | 2020 |
| Date | 28-Aug |
| Volume | 225 |
| Issue | 4,646 |
| Page | 309 |
| Category | Stationary Engine |
| Part | 1 |
| Title | Grasshopper Haulage Engine - Flywheel |
| Author | Stewart Hart |
| Notes | Completes his trilogy of stationary engines with a grasshopper haulage engine. Machining the flywheel |