| Year | 1944 |
| Date | 03-Feb |
| Volume | 90 |
| Issue | 2,230 |
| Page | 111 |
| Category | Nautical |
| Part | |
| Title | An Experimental Steam-Powered Launch |
| Author | Geoffrey E.Mortley |
| Notes | Boiler and engine as fitted to "Helen", sketch showing method of mounting engine, sectional views of the marine engine, the launch with decking removed, sketch showing method of assembling cylinder block prior to silver-soldering, crank-shaft |