| Year | 1997 |
| Date | 24-Oct |
| Volume | 179 |
| Issue | 4,053 |
| Page | 493 |
| Category | Workshop |
| Part | 2 |
| Title | The Design of Epicyclic or Planetary Gearing |
| Author | Len Snell |
| Notes | Reviews epicyclic gear train systems. Simple epicyclic gear trains, angled bevel cluster, series planet gearing, compound planet gears, trains in series, twin sun wheels with compound gears, compound epicyclic gears |