| Some sprays were even applied from the air, using aeroplanes or helicopters. |
| I am, of course, fully aware of the very significant differences between aeroplanes and helicopters. |
| In the remaining years of the war it showed itself in the production of such major weapons as poison gas, tanks, and aeroplanes. |
| At the more extreme end, some individuals and groups crash aeroplanes or blow up buildings. |
| After an experience like that, I warned all my friends to steer well clear of diving out of aeroplanes. |
| Playing with cars, trains or aeroplanes was definitely a gendered occupation. |
