| Year | 1992 |
| Date | 15-May |
| Volume | 168 |
| Issue | 3,921 |
| Page | 568 |
| Category | Correction |
| Part | 3 |
| Title | Hot Air Engines: The Whys and Wherefores ... |
| Author | "Robbie" Robbins |
| Notes | The Rider Ericcson engine and its derivatives. The Rider engine described, the hybrid engine |