| Similarity | Rank | |
|---|---|---|
| demonstration | 0.710 | 6697 |
| prototype | 0.678 | 9912 |
| UAV | 0.646 | 49002 |
| mock-up | 0.631 | 68916 |
| unmanned | 0.619 | 26624 |
| pilot | 0.612 | 4263 |
| Sikorsky | 0.601 | 76765 |
| Eurocopter | 0.594 | 93404 |
| UAS | 0.594 | 51126 |
| all-electric | 0.593 | 60293 |
| Unmanned | 0.588 | 69079 |
| piloted | 0.586 | 33845 |
| rocket | 0.586 | 9057 |
| Bombardier | 0.583 | 51213 |
| hovercraft | 0.581 | 68527 |
| mockup | 0.580 | 72186 |
| F-16 | 0.580 | 59753 |
| Demonstrators | 0.577 | 97445 |
| piloting | 0.573 | 36444 |
| prototypes | 0.572 | 21250 |
| biplane | 0.569 | 79328 |
| aeroplane | 0.568 | 44996 |
| Lockheed | 0.566 | 27404 |
| aircraft | 0.563 | 3392 |
| BAE | 0.563 | 47968 |