Related Clues:
- Trial installation
- Practise sleeping - engineers are working on it
- Trials installation
- River bottom as place for experimental trials
- Area for trying out engines and machinery under working conditions
- River bottom as experimental area
- Arrears setback for aviation engineers
- It's hard to do without lying in framework of trial
- Experimental set-up to examine what sleeping conditions might be like?
- Hants runner's base in which working parts are put through their paces
- Experimental rig
- Detonation area
- Where engines take a trial run
- Trial-run proving ground
- 60-Down, literally?