| Clue | Source | Date |
|---|---|---|
| Try out when the England team goes to Australia, maybe (10) | ||
| Check first few are not too heavy for airborne experiment | ||
| Pilot study, then series of steps, then this by pilot? | The Telegraph Cryptic | 01 Aug 2017 |
| Trial of a new plane | The Times Concise | 15 Jun 2017 |
| Match steps required in trial for 10? | The Telegraph Cryptic | 12 Nov 2016 |
| Certain pilot's mission |