Juan de la Cierva made his first autogiro flight on January 9th, 1923. However, there is a discrepancy between sources regarding the date of the first documented flight of an autogyro. According to Alejandro Gomez Spencer, the first documented flight was on January 17th, 1923 at Cuatro Vientos airfield in Madrid. However, Juan de la Cierva claimed that he flew an autogiro on January 9th, 1923 at Cuatro Vientos Airport in Madrid.
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