Aeroplanes, when passing, must keep to the right, and pass at a distance of at least 150 feet.
Take two aeroplanes of marked difference in area of surface.
How this rule is going to be applied in cases of aeroplanes, remains to be seen.
All this time we have been talking of aeroplanes, factories, and money.
If I do it will make a great difference in the control of aeroplanes.
More dangerous were the aeroplanes which circled here and there.
An effort was made to check the 95enemy's use of aeroplanes.
Aeroplanes that no one recognizes have flown above the border in the Vosges.
From my bed in the 90tent I can see the troops passing on the road and aeroplanes in the sky.
That sort of thing had sometimes been done in aeroplanes, by over-excited pilots.