| Similarity | Rank | |
|---|---|---|
| hartzell | 0.846 | 96501 |
| tdi | 0.837 | 72375 |
| rotorway | 0.829 | 84115 |
| homebuilt | 0.826 | 50469 |
| five-seater | 0.826 | 94982 |
| powerplant | 0.823 | 49875 |
| erco | 0.819 | 91382 |
| ercoupe | 0.819 | 73143 |
| ex-military | 0.817 | 63681 |
| piston-engined | 0.815 | 73753 |
| teledyne | 0.807 | 98321 |
| k-series | 0.806 | 73178 |
| low-volume | 0.805 | 93253 |
| fixed-head | 0.805 | 95256 |
| application-specific | 0.805 | 85209 |
| tel-me | 0.802 | 86760 |
| ruggedise | 0.802 | 95575 |
| fiestas | 0.801 | 76191 |
| z2033 | 0.799 | 90437 |
| lycoming | 0.799 | 52004 |
| naa | 0.798 | 79038 |
| stripped-down | 0.798 | 62733 |
| efi | 0.797 | 75023 |
| monospar | 0.797 | 76633 |
| multi-valve | 0.797 | 86097 |