| Year | 1968 |
| Date | 20-Dec |
| Volume | 134 |
| Issue | 3,359 |
| Page | 1,213 |
| Category | Hot Air |
| Part | |
| Title | Model Hot Air Engine |
| Author | D.Collin |
| Notes | Construction, power cylinder and piston, displacer piston and cylinder, insulating washer, displacer piston, cooling fins, assembly |