重大历史事件概述 第42期：法国工程师进行首次直升机飞行
Frenchman Flies The First Helicopter
French bicycle maker Paul Cornu flies his home-made helicopter for 20 seconds.
In 1907, French engineer and bicycle maker Paul Cornu designed and built the first helicopter to successfully fly.
Cornu himself piloted the first flight and ascended to an altitude of 1 foot.
He hovered there for 20 seconds before descending and landing on the 4 bicycle wheels which acted as the helicopter's landing gear.
Later improvements in design led to his record flight to a height of 5 feet.
 使用搜索工具,可以更快找到你想要的资料! 特别推荐
相关栏目
最新资料
|