Wind tunnel tests aircraft design. S.D. West of the aerodynamics section of the Bureau of Standards demonstrates the "wind tunnel" for testing aircraft design. Most airplanes submitted to the Department of Commerce for approval employ standard types of controls. To ascertain whether the safety of planes can be increased by small modifications of the controls, the Bureau makes studies of the performance of small airplane models in the "wind tunnel," 1/31
Harris & Ewing, photographer
Library of Congress
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