aéronefs
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Yakovlev Yak-40 | Concept | 42 | 19.6 |
| Yakovlev Yak-42 | Concept | 40 | 13.0 |
| Yakovlev Yak-50 | Concept | 17 | 3.3 |
| Yakovlev Yak-50 (1949) | Concept | 12 | 0.0 |
| Yakovlev Yak-52 | Concept | 26 | 9.2 |
| Yakovlev Yak-55 | Concept | 14 | 4.0 |
| Yakovlev Yak-6 | Concept | 14 | 2.5 |
| Yakovlev Yak-7 | Concept | 31 | 12.0 |
| Yakovlev Yak-9 | Concept | 42 | 36.4 |
| Yamaha Kt100 | Machine | 3 | 2.0 |
| Yatsenko I-28 | Concept | 5 | 0.7 |
| Yc-134 | Concept | 8 | 0.4 |
| Ye-150 | Concept | 9 | 4.5 |
| Yermolaïev Yer-2 | Concept | 16 | 2.9 |
| Yf-93 | Concept | 11 | 1.3 |
| Yokosuka B4y | Concept | 18 | 0.9 |
| Yokosuka D3y Myōjō | Concept | 7 | 0.0 |
| Yokosuka E6y | Machine | 6 | 0.0 |
| Yokosuka K5y | Concept | 16 | 1.3 |
| Yokosuka Mxy-7 Ohka | Concept | 27 | 17.9 |
| Yokosuka R2y | Concept | 18 | 0.0 |
| Yokosuka Ro-gō Type A | Concept | 9 | 0.0 |
| Yp-20 | Concept | 9 | 0.0 |
| Z-10 | Concept | 30 | 16.2 |
| Z-42 | Concept | 20 | 2.2 |
| Z-50 | Concept | 15 | 1.7 |
| Z.1007 Alcione | Concept | 21 | 2.3 |
| Z.1018 | Concept | 8 | 0.9 |
| Z.501 Gabbiano | Concept | 15 | 3.5 |
| Zala 421-16em | Concept | 4 | 2.0 |
| Zala 421-20 | Concept | 5 | 1.5 |
| Zala Lancet | Concept | 25 | 0.0 |
| Zehst | Machine | 9 | 5.3 |
| Zenith Ch 2000 | Machine | 6 | 1.6 |
| Zeppelin Lz 120 Bodensee | Machine | 6 | 0.2 |
| Zeppelin Staaken R.vi | Concept | 17 | 4.0 |
| Zeppelin l 49 | Machine | 3 | 1.3 |
| Zeppelin-staaken E-4/20 | Concept | 6 | 0.1 |
| Zeppy | Machine | 1 | 3.2 |
| Zivko Edge 540 | Concept | 15 | 6.8 |
| Zlin Z-26 Trener | Concept | 16 | 1.4 |
| Zlin Z-37 Čmelák | Concept | 17 | 2.4 |
| Zlin Z-xii | Concept | 13 | 0.2 |
| Zlín Z 43 | Concept | 11 | 2.5 |
| Zmc-2 | Machine | 9 | 0.1 |
| Zénith | Machine | 4 | 8.6 |
| Éole | Machine | 11 | 34.7 |
| Š-28 | Concept | 13 | 0.5 |
| Škoda-kauba Sk P.14 | Concept | 8 | 0.7 |
| А-2 | Concept | 8 | 1.7 |