Otto Lilienthal

Lilienthal, Otto (ôˈtō lēˈlyəntäl) [key], 1848–96, German aeronautical engineer, a pioneer in his experiments with gliders. He made major developments in the glider based on his observations of birds and wrote a number of books on aviation. His brother, Gustav Lilienthal, 1849–1933, was associated with Otto in his flying experiments and continued them after his brother's death.

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