| Year | 1991 |
| Date | 01-Nov |
| Volume | 167 |
| Issue | 3,908 |
| Page | 532 |
| Category | Hot Air Matters |
| Part | |
| Title | Hot Air Stateside |
| Author | Mick Fox |
| Notes | Reports on the proceedings of the 25th Intersociety Energy Conversion Engineering Conference. High spots, Dr. Jim Senft's Stirling engine, Rob McConaghy's model aircraft engine a 6cc Gamm Ringbom-Stirling, picture on page 487 |