| Year | 1978 |
| Date | 05-May |
| Volume | 144 |
| Issue | 3,584 |
| Page | 488 |
| Category | Exhibition |
| Part | |
| Title | Model Engineer Exhibition 1978. The Hot Air Engine Competition |
| Author | Prof. D.H.Chaddock |
| Notes | First place to F.R.Wilkinson's double acting dual displacer engine, F.B.Thomson's rhombic drive engine |