| Answer | Crossword Clue |
|---|---|
| elevon | a type of wing-flap |
| elevons | ELEVON, a type of wing-flap |
| wingbeat | a flap of a wing |
| wingbeats | WINGBEAT, a flap of a wing |
| spoilers | A flap on the wing of an aircraft or glider that can be projected in order to create drag and so reduce speed |
| ELEVON | Flap on a plane's wing |
