| Answer | Crossword Clue |
|---|---|
| FIN | Part of a plane's tail. |
| FLYINGWINGS | Planes with no fuselage or tail assembly |
| AILERON | Part of a plane's wing |
| frustum | the part of a solid, as a cone or pyramid, between two usually parallel cutting planes |
| frusta | the part of a solid, as a cone or pyramid, between two usually parallel cutting planes |
| frustums | The portion of a cone or pyramid that remains after its upper part has been cut off by a plane parallel to its base, or that is intercepted between two such planes |
