| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | half plane | Geography | A half plane in aviation and geography refers to the ailerons on one side of an aircraft that control its roll and bank maneuvering. | 1 |
| 2 | half plane | aviation | The concept of a half plane in aviation refers to the ailerons on one side of an aircraft controlling its roll and bank maneuvering. | 1 |