Blériot, a Frenchman, flew across the English Channel in a monoplane in thirty-eight minutes. 鲁伯特·萨金特·荷兰.历史性发明.
German submarines were actively engaged in trying to torpedo these monitors and the British monoplane was useful for giving the range to the ship and reporting the accuracy of the shots. 佚名.神奇的知识之书.