| Year | 1998 |
| Date | 14-Aug |
| Volume | 181 |
| Issue | 4,074 |
| Page | 191 |
| Category | Stationary Engine |
| Part | |
| Title | What Would Mr. Coomber Say? |
| Author | Bill Whitford (New South Wales) |
| Notes | Describes an extension to the original thinking. Photographs by Cec. Graham, a 6-cylinder radial engine, footnote |