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McCook Field Wind Tunnel


This wind tunnel was designed and built at McCook Field, Ohio, in 1918. Using a 24-blade fan of 60 inches diameter, the tunnel developed a maximum air speed of 453 mph at its 14-inch diameter choke-throat test area.

It was used for calibrating airspeed instruments and testing airfoils. The item to be evaluated was placed in the choke-throat and viewed through the glass door. During operation, the air was drawn into the small end of the tunnel and exhausted from the large end where the fan was located.

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Research & Development at McCook Field
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