ELEVON
| Date | Clue |
|---|---|
| 2011-02-27 | Aircraft control surface |
| 2008-09-07 | Control surface on a plane's wing |
| 2001-11-30 | Hinged flap on an airplane |
| Date | Clue |
|---|---|
| 2011-02-27 | Aircraft control surface |
| 2008-09-07 | Control surface on a plane's wing |
| 2001-11-30 | Hinged flap on an airplane |