Juan De La Cierva
1886-1936
Spanish aviator and aeronautical engineer who pioneered rotary flight. In 1918, after receiving his engineering degree, he built the first trimotor airplane in Spain. In 19...
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Jan 2 (Reuters) - Following are some of the major
events to have occurred on January 9 in history: 1923 - Spanish inventor Don Juan de la Cierva made the first
successful flight in an autogyro, fo...
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