| Year | 1931 |
| Date | 06-Aug |
| Volume | 65 |
| Issue | 1,578 |
| Page | 125 |
| Category | Aeronautical |
| Part | |
| Title | A Compressed-air Plant for Model Aircraft |
| Author | Edgar T.Westbury |
| Notes | Materials required, engine, container, construction (engine), crankcase, cylinder seatings, main bearings, cylinders, crankshaft, connecting-rods, big-end bush, wrist pins, lapping cylinders, pistons, valve timing, cylinder heads |