On one of the preparatory days three heavier than air machines were man?uvring in the great aerodrome at the same time. 鲁伯特·萨金特·荷兰.历史性发明.
When furnished with an eighty horse-power motor, more suited to its increased weight, the aerodrome planed easily over the water in more prolonged flight. 李贝.西洋科学史.