_"THEY WILL DELIVER FAR PLACES from loneliness," wrote Juan de la Cierva of his invention, the autogiro, "and make near neighbors of the communities of a continent." Cierva's concept, intended to enable steady flight at low speed, used a powered propeller like an airplane, but added lift with unpowered, windmilling blades. At the close of the 1920s, Cierva sold licensing rights to Philadelphia aircraft designer Harold Pitcairn, who formed what would become the Autogiro Company of America. For refinements that made Cierva's invention into a practical aircraft, Pitcairn won the 1930 Collier Trophy.
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机译：_“他们将摆脱寂寞，”胡安·德拉·切尔瓦（Juan de la Cierva）发明了自动翼飞机，并“使附近的一个大陆社区近邻。”切尔瓦的概念旨在使飞机在低空平稳飞行。速度，使用了像飞机一样的动力螺旋桨，但增加了无动力风车叶片的升力。 1920年代末，Cierva将许可权卖给了费城飞机设计师Harold Pitcairn，后者成立了美国Autogiro公司。为使Cierva的发明成为一架实用飞机而进行的改进，皮特凯恩赢得了1930年的Collier Trophy。
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