| Year | 2019 |
| Date | 01-Feb |
| Volume | 222 |
| Issue | 4,605 |
| Page | 230 |
| Category | Aeronautical |
| Part | 9 |
| Title | The ENV Aero Engine |
| Author | Stephen Wessel |
| Notes | Continues an occasional series on the construction of an elusive prototype. Valve timing and cams, timing, cam design, making the cams, setting the cams, lubrication |