| Year | 2017 |
| Date | 03-Feb |
| Volume | 218 |
| Issue | 4,553 |
| Page | 220 |
| Category | Internal Combustion |
| Part | 3 |
| Title | BollAero 49 Glowplug Engine |
| Author | Chris Boll |
| Notes | A traditional aeromodeller constructs an engine for flight. Cylinder head, rear cover, disc, prop driver, inlet tube, needle valve assembly bits and pieces, assembly and running, reference |