Why did the Wright brothers build a custom wind tunnel in their workshop?

Answer

To generate reliable aerodynamic data after finding existing scientific information was flawed

Empirical testing became necessary because the published aerodynamic data from researchers like Otto Lilienthal proved to be inaccurate, leading to the failure of the brothers' 1901 glider. To resolve these discrepancies, they constructed a wind tunnel. This scientific instrument allowed them to systematically evaluate the performance of various wing shapes, or airfoils, and develop the precise data required to design efficient wings and propellers.

Why did the Wright brothers build a custom wind tunnel in their workshop?
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