| Year | 2020 |
| Date | 27-Mar |
| Volume | 224 |
| Issue | 4,635 |
| Page | 489 |
| Category | Hot Air |
| Part | |
| Title | An Inverted 'Ross Yoke' Watercooled Stirling Engine |
| Author | Alan Pickering |
| Notes | Has a quick rummage in the scrap box and makes yet another hot air engine. The scene of my latest triumph |