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NACA Cowling #10 | by NASA on The Commons
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NACA Cowling #10

Description Drag can present a major problem for aircraft and much of Langley Lab's early research was focused upon reducing aircraft drag. One method was to place a cowling or covering over the engine cylinder heads, much like the hood over the engine of a car. By the end of September 1928, tests of cowling #10 in the Propeller Research Tunnel showed a dramatic reduction in drag. This research won the NACA the first of its many Collier Trophies.

 

Center: LARC

Image #: 1974-L-02730

Date: September 1, 1928

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Taken on September 1, 1928